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Files from Ubuntu

Email addresssecurity at ubuntu.com
First Active2004-10-28
Last Active2019-03-18
Ubuntu Security Notice USN-3894-1
Posted Feb 26, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3894-1 - It was discovered that GNOME Keyring incorrectly cleared out credentials supplied to the PAM module. A local attacker could possibly use this issue to discover login credentials.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2018-20781
MD5 | 7c4f101099858977401af137cb677b7e
Ubuntu Security Notice USN-3866-3
Posted Feb 26, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3866-3 - USN-3866-2 fixed a regression in Ghostscript. The Ghostscript update introduced a new regression that resulted in certain pages being printed with a blue background. This update fixes the problem. Tavis Ormandy discovered that Ghostscript incorrectly handled certain PostScript files. If a user or automated system were tricked into processing a specially crafted file, a remote attacker could possibly use this issue to access arbitrary files, execute arbitrary code, or cause a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
MD5 | bcedf1d55d9ba455b92845d70d575012
Ubuntu Security Notice USN-3893-2
Posted Feb 25, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3893-2 - USN-3893-1 fixed a vulnerability in Bind. This update provides the corresponding update for Ubuntu 12.04 ESM. It was discovered that Bind incorrectly handled certain trust anchors when used with the "managed-keys" feature. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2018-5745, CVE-2019-6465
MD5 | da49e2f4aa1d8c9b96a2d3e19c680e31
Ubuntu Security Notice USN-3893-1
Posted Feb 22, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3893-1 - Toshifumi Sakaguchi discovered that Bind incorrectly handled memory. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10. It was discovered that Bind incorrectly handled certain trust anchors when used with the "managed-keys" feature. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2018-5744, CVE-2018-5745, CVE-2019-6465
MD5 | 23196d546e73474d148ec76ffbb82008
Ubuntu Security Notice USN-3866-2
Posted Feb 21, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3866-2 - USN-3866-1 fixed vulnerabilities in Ghostscript. The new Ghostscript version introduced a regression when printing certain page sizes. This update fixes the problem. Tavis Ormandy discovered that Ghostscript incorrectly handled certain PostScript files. If a user or automated system were tricked into processing a specially crafted file, a remote attacker could possibly use this issue to access arbitrary files, execute arbitrary code, or cause a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary, vulnerability
systems | linux, ubuntu
MD5 | 77dd6ff7d1ee5ef8a4e5f5a8cfca6724
Ubuntu Security Notice USN-3892-1
Posted Feb 20, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3892-1 - Burghard Britzke discovered that GDM incorrectly handled certain configurations. An attacker could possibly use this issue to get unauthorized access to a different user.

tags | advisory
systems | linux, ubuntu
advisories | CVE-2019-3825
MD5 | 05b6f26f93a9ffb2dac01831fadeece9
Ubuntu Security Notice USN-3891-1
Posted Feb 18, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3891-1 - It was discovered that systemd incorrectly handled certain D-Bus messages. A local unprivileged attacker could exploit this in order to crash the init process, resulting in a system denial-of-service.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2019-6454
MD5 | 347d92e04f1ac6e5d4a305700cc98d16
Ubuntu Security Notice USN-3850-2
Posted Feb 18, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3850-2 - USN-3850-1 fixed several vulnerabilities in NSS. This update provides the corresponding update for Ubuntu 12.04 ESM. Keegan Ryan discovered that NSS incorrectly handled ECDSA key generation. A local attacker could possibly use this issue to perform a cache-timing attack and recover private ECDSA keys. Various other issues were also addressed.

tags | advisory, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-0495, CVE-2018-12384, CVE-2018-12404
MD5 | 550bd66bfce61ba6685d7549da716d49
Ubuntu Security Notice USN-3889-1
Posted Feb 13, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3889-1 - A large number of security issues were discovered in the WebKitGTK+ Web and JavaScript engines. If a user were tricked into viewing a malicious website, a remote attacker could exploit a variety of issues related to web browser security, including cross-site scripting attacks, denial of service attacks, and arbitrary code execution.

tags | advisory, remote, web, denial of service, arbitrary, javascript, code execution, xss
systems | linux, ubuntu
advisories | CVE-2019-6212
MD5 | 13b47ad83ec48720409f49c0385d5369
Ubuntu Security Notice USN-3890-1
Posted Feb 13, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3890-1 - It was discovered that Django incorrectly handled formatting certain numbers. A remote attacker could possibly use this issue to cause Django to consume resources, leading to a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2019-6975
MD5 | c198b95ba7bb3de9c826843ce0578b87
Ubuntu Security Notice USN-3888-1
Posted Feb 13, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3888-1 - It was discovered that GVfs incorrectly handled certain inputs. An attacker could possibly use this issue to access sensitive information.

tags | advisory
systems | linux, ubuntu
advisories | CVE-2019-3827
MD5 | 112112f7c84557975958b891a4302b0e
Ubuntu Security Notice USN-3887-1
Posted Feb 12, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3887-1 - Chris Moberly discovered that snapd versions 2.28 through 2.37 incorrectly validated and parsed the remote socket address when performing access controls on its UNIX socket. A local attacker could use this to access privileged socket APIs and obtain administrator privileges. On Ubuntu systems with snaps installed, snapd typically will have already automatically refreshed itself to snapd 2.37.1 which is unaffected.

tags | advisory, remote, local
systems | linux, unix, ubuntu
advisories | CVE-2019-7304
MD5 | a039dec3039229db20b992fe7a5de40b
Ubuntu Security Notice USN-3886-1
Posted Feb 11, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3886-1 - It was discovered that poppler incorrectly handled certain PDF files. An attacker could possibly use this issue to cause a denial of service.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2018-20551
MD5 | 445e431cda5a42ecc285caabc42ac854
Ubuntu Security Notice USN-3871-5
Posted Feb 7, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3871-5 - Wen Xu discovered that a use-after-free vulnerability existed in the ext4 filesystem implementation in the Linux kernel. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service or possibly execute arbitrary code. Wen Xu discovered that a buffer overflow existed in the ext4 filesystem implementation in the Linux kernel. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2018-10876, CVE-2018-10877, CVE-2018-10880, CVE-2018-10883, CVE-2018-14625, CVE-2018-16882, CVE-2018-17972, CVE-2018-18281, CVE-2018-19407, CVE-2018-9516
MD5 | 4b4d0eac27f8b493efdf43f83d8596cc
Ubuntu Security Notice USN-3878-2
Posted Feb 7, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3878-2 - It was discovered that a race condition existed in the vsock address family implementation of the Linux kernel that could lead to a use-after-free condition. A local attacker in a guest virtual machine could use this to expose sensitive information. Cfir Cohen discovered that a use-after-free vulnerability existed in the KVM implementation of the Linux kernel, when handling interrupts in environments where nested virtualization is in use. A local attacker in a guest VM could possibly use this to gain administrative privileges in a host machine. Various other issues were also addressed.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-14625, CVE-2018-16882, CVE-2018-19407, CVE-2018-19854
MD5 | d8dbdd1eab453e97381b6d1a7b1e34a7
Ubuntu Security Notice USN-3885-1
Posted Feb 7, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3885-1 - 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.

tags | advisory, remote, arbitrary, spoof
systems | linux, ubuntu
advisories | CVE-2018-20685
MD5 | 558941eba51b7779c1347a96125fa2cc
Ubuntu Security Notice USN-3884-1
Posted Feb 7, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3884-1 - It was discovered that libarchive incorrectly handled certain 7zip files. An attacker could possibly use this issue to cause a denial of service.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2019-1000019
MD5 | d1fb528d9a15eafc7742944b5b429bab
Ubuntu Security Notice USN-3883-1
Posted Feb 6, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3883-1 - It was discovered that LibreOffice incorrectly handled certain document files. If a user were tricked into opening a specially crafted document, a remote attacker could cause LibreOffice to crash, and possibly execute arbitrary code. It was discovered that LibreOffice incorrectly handled embedded SMB connections in document files. If a user were tricked in to opening a specially crafted document, a remote attacker could possibly exploit this to obtain sensitive information. Various other issues were also addressed.

tags | advisory, remote, arbitrary
systems | linux, ubuntu
advisories | CVE-2018-10119, CVE-2018-10583, CVE-2018-16858
MD5 | 3a1aa43861dde35ad0fb4173c374375b
Ubuntu Security Notice USN-3882-1
Posted Feb 6, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3882-1 - Wenxiang Qian discovered that curl incorrectly handled certain NTLM authentication messages. A remote attacker could possibly use this issue to cause curl to crash, resulting in a denial of service. This issue only applied to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 18.10. Wenxiang Qian discovered that curl incorrectly handled certain NTLMv2 authentication messages. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only applied to Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 18.10. Various other issues were also addressed.

tags | advisory, remote, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2018-16890, CVE-2019-3822, CVE-2019-3823
MD5 | 0f925b1c5398dda61353888f8f8f00b0
Ubuntu Security Notice USN-3881-2
Posted Feb 6, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3881-2 - USN-3881-1 fixed a vulnerability in Dovecot. This update provides the corresponding update for Ubuntu 12.04 ESM. It was discovered that Dovecot incorrectly handled client certificates. A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users. Various other issues were also addressed.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2019-3814
MD5 | 9d23ce1274d573e9d037153a6f17b56b
Ubuntu Security Notice USN-3881-1
Posted Feb 5, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3881-1 - It was discovered that Dovecot incorrectly handled client certificates. A remote attacker in possession of a valid certificate with an empty username field could possibly use this issue to impersonate other users.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2019-3814
MD5 | a7b034214697ad1cd15b379ec5191896
Ubuntu Security Notice USN-3880-2
Posted Feb 5, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3880-2 - USN-3880-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 ESM. It was discovered that the CIFS client implementation in the Linux kernel did not properly handle setup negotiation during session recovery, leading to a NULL pointer exception. An attacker could use this to create a malicious CIFS server that caused a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2018-1066, CVE-2018-17972, CVE-2018-18281, CVE-2018-9568
MD5 | 487a306925c7e670db035236bdf205f4
Ubuntu Security Notice USN-3880-1
Posted Feb 5, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3880-1 - It was discovered that the CIFS client implementation in the Linux kernel did not properly handle setup negotiation during session recovery, leading to a NULL pointer exception. An attacker could use this to create a malicious CIFS server that caused a denial of service. Jann Horn discovered that the procfs file system implementation in the Linux kernel did not properly restrict the ability to inspect the kernel stack of an arbitrary task. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-1066, CVE-2018-17972, CVE-2018-18281, CVE-2018-9568
MD5 | 2df3c39651f380c1654b491a60d6c979
Ubuntu Security Notice USN-3871-3
Posted Feb 5, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3871-3 - Wen Xu discovered that a use-after-free vulnerability existed in the ext4 filesystem implementation in the Linux kernel. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service or possibly execute arbitrary code. Wen Xu discovered that a buffer overflow existed in the ext4 filesystem implementation in the Linux kernel. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel
systems | linux, ubuntu
advisories | CVE-2018-10876, CVE-2018-10877, CVE-2018-10880, CVE-2018-10883, CVE-2018-14625, CVE-2018-16882, CVE-2018-17972, CVE-2018-18281, CVE-2018-19407, CVE-2018-9516
MD5 | a61ce6346050754f5ddbc713c1f79084
Ubuntu Security Notice USN-3879-1
Posted Feb 5, 2019
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3879-1 - Wen Xu discovered that the ext4 file system implementation in the Linux kernel could possibly perform an out of bounds write when updating the journal for an inline file. An attacker could use this to construct a malicious ext4 image that, when mounted, could cause a denial of service. Vasily Averin and Pavel Tikhomirov discovered that the cleancache subsystem of the Linux kernel did not properly initialize new files in some situations. A local attacker could use this to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2018-10883, CVE-2018-16862, CVE-2018-19407, CVE-2018-19824, CVE-2018-20169
MD5 | de715ed77a7448afa809105bbb07f753
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