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Windows Diagnostics Hub DLL Loading Privilege Escalation
Posted Oct 17, 2016
Authored by Google Security Research, forshaw

The fix for CVE-2016-3231 is insufficient to prevent a normal user specifying an insecure agent path leading to arbitrary DLL loading at system privileges.

tags | exploit, arbitrary
advisories | CVE-2016-3231, CVE-2016-7188
MD5 | c4ff8d0dc654ac405a128ddd41d0c703

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Microsoft Windows AppX Deployment Service Local Privilege Escalation
Posted May 29, 2019
Authored by SandboxEscaper

Microsoft Windows suffers from a deployment service local privilege escalation vulnerability that bypasses the fix for CVE-2019-0841.

tags | exploit, local
systems | windows
advisories | CVE-2019-0841
MD5 | e4ec8b1e55e88e54ab69d43fb7183685
Ubuntu Security Notice USN-3885-2
Posted Mar 4, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3885-2 - USN-3885-1 fixed vulnerabilities in OpenSSH. It was discovered that the fix for CVE-2019-6111 turned out to be incomplete. This update fixes the problem. Harry Sintonen discovered multiple issues in the OpenSSH scp utility. If a user or automated system were tricked into connecting to an untrusted server, a remote attacker could possibly use these issues to write to arbitrary files, change directory permissions, and spoof client output. Various other issues were also addressed.

tags | advisory, remote, arbitrary, spoof, vulnerability
systems | linux, ubuntu
advisories | CVE-2019-6111
MD5 | f34497e7fb170dcf3d9ac60a51149cd4
Ubuntu Security Notice USN-3816-3
Posted Nov 28, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3816-3 - USN-3816-1 fixed vulnerabilities in systemd. The fix for CVE-2018-6954 caused a regression in systemd-tmpfiles when running Ubuntu inside a container on some older kernels. This issue only affected Ubuntu 16.04 LTS. In order to continue to support this configuration, the fixes for CVE-2018-6954 have been reverted. Various other issues were also addressed.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-15686, CVE-2018-15687, CVE-2018-6954
MD5 | be578aeb1bec867e87d540b182304d00
Ubuntu Security Notice USN-3816-2
Posted Nov 20, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3816-2 - USN-3816-1 fixed several vulnerabilities in systemd. However, the fix for CVE-2018-6954 was not sufficient. This update provides the remaining fixes. Jann Horn discovered that unit_deserialize incorrectly handled status messages above a certain length. A local attacker could potentially exploit this via NotifyAccess to inject arbitrary state across re-execution and obtain root privileges. Jann Horn discovered a race condition in chown_one. A local attacker could potentially exploit this by setting arbitrary permissions on certain files to obtain root privileges. This issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10. It was discovered that systemd-tmpfiles mishandled symlinks in non-terminal path components. A local attacker could potentially exploit this by gaining ownership of certain files to obtain root privileges. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. Various other issues were also addressed.

tags | advisory, arbitrary, local, root, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-15686, CVE-2018-15687, CVE-2018-6954
MD5 | 90d52b61ecc5f6f5a4a47d93591f9c28
Ubuntu Security Notice USN-3718-2
Posted Jul 23, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3718-2 - USN-3695-2 fixed vulnerabilities in the Linux Hardware Enablement Kernel kernel for Ubuntu 16.04 LTS. Unfortunately, the fix for CVE-2018-1108 introduced a regression where insufficient early entropy prevented services from starting, leading in some situations to a failure to boot, This update addresses the issue. Various other issues were also addressed.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-1094, CVE-2018-10940, CVE-2018-1095, CVE-2018-1108, CVE-2018-11508, CVE-2018-7755
MD5 | 95f3ed15f6f677f3916eddf77606b2be
Ubuntu Security Notice USN-3718-1
Posted Jul 23, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3718-1 - USN-3695-1 fixed vulnerabilities in the Linux kernel for Ubuntu 18.04 LTS. Unfortunately, the fix for CVE-2018-1108 introduced a regression where insufficient early entropy prevented services from starting, leading in some situations to a failure to boot, This update addresses the issue. Various other issues were also addressed.

tags | advisory, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-1094, CVE-2018-10940, CVE-2018-1095, CVE-2018-1108, CVE-2018-11508, CVE-2018-7755
MD5 | 89afcc71542e7f35797e8836a45c4aa9
Ubuntu Security Notice USN-3702-2
Posted Jul 5, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3702-2 - USN-3702-1 fixed a vulnerability in PHP. PHP 7.2.7 did not actually include the fix for CVE-2018-12882. This update adds a backported patch to correct the issue. It was discovered that PHP incorrectly handled exif tags in certain images. A remote attacker could use this issue to cause PHP to crash, resulting in a denial of service, or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, php
systems | linux, ubuntu
advisories | CVE-2018-12882
MD5 | 8fe6d115b16c29298453c43df9af9f61
Microsoft Windows Desktop Bridge Virtual Registry Incomplete Fix
Posted Jun 20, 2018
Authored by James Forshaw, Google Security Research

The handling of the virtual registry for desktop bridge applications can allow an application to create arbitrary files as system resulting in privilege escalation. This is because the fix for CVE-2018-0880 (MSRC case 42755) did not cover all similar cases which were reported at the same time in the issue.

tags | exploit, arbitrary, registry
MD5 | 0c6e9aac6eb44da88353cc69fbad521f
Microsoft Windows CiSetFileCache TOCTOU Incomplete Fix
Posted Apr 17, 2018
Authored by James Forshaw, Google Security Research

The fix for CVE-2017-11830 is insufficient to prevent a normal user application adding a cached signing level to an unsigned file by exploiting a TOCTOU in CI leading to circumventing Device Guard policies.

tags | exploit
advisories | CVE-2017-11830, CVE-2018-0966
MD5 | dd01efee7f81b595a28eb0762c87ef42
Ubuntu Security Notice USN-3575-2
Posted Mar 5, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3575-2 - USN-3575-1 fixed vulnerabilities in QEMU. The fix for CVE-2017-11334 caused a regression in Xen environments. This update removes the problematic fix pending further investigation. It was discovered that QEMU incorrectly handled guest ram. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. David Buchanan discovered that QEMU incorrectly handled the VGA device. A privileged attacker inside the guest could use this issue to cause QEMU to crash, resulting in a denial of service. This issue was only addressed in Ubuntu 17.10. Thomas Garnier discovered that QEMU incorrectly handled multiboot. An attacker could use this issue to cause QEMU to crash, resulting in a denial of service, or possibly execute arbitrary code on the host. In the default installation, when QEMU is used with libvirt, attackers would be isolated by the libvirt AppArmor profile. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-11334, CVE-2017-13672, CVE-2017-14167, CVE-2017-15038, CVE-2017-15118, CVE-2017-15119, CVE-2017-15124, CVE-2017-15268, CVE-2017-15289, CVE-2017-16845, CVE-2017-17381, CVE-2017-18043, CVE-2018-5683
MD5 | 8897bd653068b95fd874eb483496b3a5
Ubuntu Security Notice USN-3480-2
Posted Nov 20, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3480-2 - USN-3480-1 fixed vulnerabilities in Apport. The fix for CVE-2017-14177 introduced a regression in the ability to handle crashes for users that configured their systems to use the Upstart init system in Ubuntu 16.04 LTS and Ubuntu 17.04. The fix for CVE-2017-14180 temporarily disabled crash forwarding to containers. This update addresses the problems. Various other issues were also addressed.

tags | advisory, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-14177, CVE-2017-14180
MD5 | 187d13705d588506b1f9efb92a04f86a
Ubuntu Security Notice USN-3346-2
Posted Sep 18, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3346-2 - USN-3346-1 fixed vulnerabilities in Bind. The fix for CVE-2017-3142 introduced a regression in the ability to receive an AXFR or IXFR in the case where TSIG is used and not every message is signed. This update fixes the problem. In addition, this update adds the new root zone key signing key. Various other issues were also addressed.

tags | advisory, root, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-3142, CVE-2017-3143
MD5 | 6f82feb480bd6612b9d8ced44919b34e
Ubuntu Security Notice USN-3338-2
Posted Jun 29, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3338-2 - USN-3338-1 fixed vulnerabilities in the Linux kernel. However, the fix for CVE-2017-1000364 introduced regressions for some Java applications. This update addresses the issue. It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges Various other issues were also addressed.

tags | advisory, java, arbitrary, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-4997, CVE-2017-1000364
MD5 | 324fdc6eb4d3403b6a4941ed04dd334f
Debian Security Advisory 3886-2
Posted Jun 28, 2017
Authored by Debian | Site debian.org

Debian Linux Security Advisory 3886-2 - The security update announced as DSA-3886-1 caused regressions for some applications using Java - including jsvc, LibreOffice and Scilab - due to the fix for CVE-2017-1000364. Updated packages are now available to correct this issue.

tags | advisory, java
systems | linux, debian
MD5 | 3255a76fe0614a8ebe91cede0fc3a48f
Red Hat Security Advisory 2017-0847-01
Posted Mar 30, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0847-01 - The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP. Security Fix: It was found that the fix for CVE-2015-3148 in curl was incomplete. An application using libcurl with HTTP Negotiate authentication could incorrectly re-use credentials for subsequent requests to the same server.

tags | advisory, web, protocol
systems | linux, redhat
advisories | CVE-2017-2628
MD5 | 2c2ce6c1907416090995e490f547d69e
Ubuntu Security Notice USN-3239-3
Posted Mar 24, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3239-3 - USN-3239-1 fixed vulnerabilities in the GNU C Library. Unfortunately, the fix for CVE-2016-3706 introduced a regression that in some circumstances prevented IPv6 addresses from resolving. This update reverts the change in Ubuntu 12.04 LTS.

tags | advisory, vulnerability
systems | linux, ubuntu
advisories | CVE-2015-8982, CVE-2015-8983, CVE-2015-8984, CVE-2016-1234, CVE-2016-3706, CVE-2016-4429, CVE-2016-5417, CVE-2016-6323
MD5 | 8d48b5b1f90e1e2041adfb4c29d9653f
Ubuntu Security Notice USN-3239-2
Posted Mar 22, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3239-2 - USN-3239-1 fixed vulnerabilities in the GNU C Library. Unfortunately, the fix for CVE-2015-5180 introduced an internal ABI change within the resolver library. This update reverts the change. Please note that long-running services that were restarted to compensate for the USN-3239-1 update may need to be restarted again. Various other issues were also addressed.

tags | advisory, vulnerability
systems | linux, ubuntu
advisories | CVE-2015-5180, CVE-2015-8982, CVE-2015-8983, CVE-2015-8984, CVE-2016-1234, CVE-2016-3706, CVE-2016-4429, CVE-2016-5417, CVE-2016-6323
MD5 | 0933bcea39df0728dfb221f22c712907
Red Hat Security Advisory 2016-2583-02
Posted Nov 3, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-2583-02 - The Network Time Protocol is used to synchronize a computer's time with another referenced time source. These packages include the ntpd service which continuously adjusts system time and utilities used to query and configure the ntpd service. Security Fix: It was found that the fix for CVE-2014-9750 was incomplete: three issues were found in the value length checks in NTP's ntp_crypto.c, where a packet with particular autokey operations that contained malicious data was not always being completely validated. A remote attacker could use a specially crafted NTP packet to crash ntpd.

tags | advisory, remote, protocol
systems | linux, redhat
advisories | CVE-2015-5194, CVE-2015-5195, CVE-2015-5196, CVE-2015-5219, CVE-2015-7691, CVE-2015-7692, CVE-2015-7701, CVE-2015-7702, CVE-2015-7703, CVE-2015-7852, CVE-2015-7974, CVE-2015-7977, CVE-2015-7978, CVE-2015-7979, CVE-2015-8158
MD5 | c60ed0a8153b4cc5c07956127649f45c
Ubuntu Security Notice USN-3116-1
Posted Nov 1, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3116-1 - It was discovered that DBus incorrectly validated the source of ActivationFailure signals. A local attacker could use this issue to cause a denial of service. This issue only applied to Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. It was discovered that DBus incorrectly handled certain format strings. A local attacker could use this issue to cause a denial of service, or possibly execute arbitrary code. This issue is only exposed to unprivileged users when the fix for CVE-2015-0245 is not applied, hence this issue is only likely to affect Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. Ubuntu 16.04 LTS and Ubuntu 16.10 have been updated as a preventative measure in the event that a new attack vector for this issue is discovered. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2015-0245
MD5 | 66e3bf548ba86804f347be55cf484ca6
Ubuntu Security Notice USN-3087-2
Posted Sep 23, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3087-2 - USN-3087-1 fixed vulnerabilities in OpenSSL. The fix for CVE-2016-2182 was incomplete and caused a regression when parsing certificates. This update fixes the problem. Shi Lei discovered that OpenSSL incorrectly handled the OCSP Status Request extension. A remote attacker could possibly use this issue to cause memory consumption, resulting in a denial of service. Guido Vranken discovered that OpenSSL used undefined behaviour when performing pointer arithmetic. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. This issue has only been addressed in Ubuntu 16.04 LTS in this update. CAsar Pereida, Billy Brumley, and Yuval Yarom discovered that OpenSSL did not properly use constant-time operations when performing DSA signing. A remote attacker could possibly use this issue to perform a cache-timing attack and recover private DSA keys. Quan Luo discovered that OpenSSL did not properly restrict the lifetime of queue entries in the DTLS implementation. A remote attacker could possibly use this issue to consume memory, resulting in a denial of service. Shi Lei discovered that OpenSSL incorrectly handled memory in the TS_OBJ_print_bio function. A remote attacker could possibly use this issue to cause a denial of service. It was discovered that the OpenSSL incorrectly handled the DTLS anti-replay feature. A remote attacker could possibly use this issue to cause a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-2177, CVE-2016-2178, CVE-2016-2179, CVE-2016-2180, CVE-2016-2181, CVE-2016-2182, CVE-2016-2183, CVE-2016-6302, CVE-2016-6303, CVE-2016-6304, CVE-2016-6306
MD5 | b3a23bcc910563fa3d39f1007c3692fc
Red Hat Security Advisory 2016-1573-01
Posted Aug 5, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-1573-01 - Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects. Security Fix: It was found that the fix for CVE-2016-4051 released via RHSA-2016:1138 did not properly prevent the stack overflow in the munge_other_line() function. A remote attacker could send specially crafted data to the Squid proxy, which would exploit the cachemgr CGI utility, possibly triggering execution of arbitrary code.

tags | advisory, remote, web, overflow, arbitrary, cgi
systems | linux, redhat
advisories | CVE-2016-5408
MD5 | 15b2429a81a9c12b3390c34d17bbda3f
Ubuntu Security Notice USN-2985-2
Posted May 26, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 2985-2 - USN-2985-1 fixed vulnerabilities in the GNU C Library. The fix for CVE-2014-9761 introduced a regression which affected applications that use the libm library but were not fully restarted after the upgrade. This update removes the fix for CVE-2014-9761 and a future update will be provided to address this issue. Various other issues were also addressed.

tags | advisory, vulnerability
systems | linux, ubuntu
advisories | CVE-2014-8121, CVE-2014-9761, CVE-2015-1781, CVE-2015-5277, CVE-2015-8776, CVE-2015-8777, CVE-2015-8778, CVE-2015-8779, CVE-2016-3075
MD5 | bc09346c98299cdd5f4ba8c06147a6da
Red Hat Security Advisory 2016-0780-01
Posted May 11, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0780-01 - The Network Time Protocol is used to synchronize a computer's time with another referenced time source. These packages include the ntpd service which continuously adjusts system time and utilities used to query and configure the ntpd service. Security Fix: It was found that the fix for CVE-2014-9750 was incomplete: three issues were found in the value length checks in NTP's ntp_crypto.c, where a packet with particular autokey operations that contained malicious data was not always being completely validated. A remote attacker could use a specially crafted NTP packet to crash ntpd.

tags | advisory, remote, protocol
systems | linux, redhat
advisories | CVE-2015-5194, CVE-2015-5195, CVE-2015-5219, CVE-2015-7691, CVE-2015-7692, CVE-2015-7701, CVE-2015-7702, CVE-2015-7703, CVE-2015-7852, CVE-2015-7977, CVE-2015-7978
MD5 | a1d0851e7a72fb841f8762f84f38160f
Red Hat Security Advisory 2016-0617-01
Posted Apr 12, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0617-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix: It was found that the fix for CVE-2015-1805 incorrectly kept buffer offset and buffer length in sync on a failed atomic read, potentially resulting in a pipe buffer state corruption. A local, unprivileged user could use this flaw to crash the system or leak kernel memory to user space.

tags | advisory, kernel, local
systems | linux, redhat
advisories | CVE-2016-0774
MD5 | a284b8713fdb3d064b6a6753590d29a3
Red Hat Security Advisory 2016-0494-01
Posted Mar 23, 2016
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2016-0494-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. It was found that the fix for CVE-2015-1805 incorrectly kept buffer offset and buffer length in sync on a failed atomic read, potentially resulting in a pipe buffer state corruption. A local, unprivileged user could use this flaw to crash the system or leak kernel memory to user space. The security impact of this issue was discovered by Red Hat.

tags | advisory, kernel, local
systems | linux, redhat
advisories | CVE-2016-0774
MD5 | 30ebf731cb363b6aebe3c1275e91069d
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