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Operating System: Linux

Debian Security Advisory 4085-1
Posted Jan 15, 2018
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4085-1 - Philip Huppert discovered the Shibboleth service provider is vulnerable to impersonation attacks and information disclosure due to mishandling of DTDs in the XMLTooling XML parsing library.

tags | advisory, info disclosure
systems | linux, debian
advisories | CVE-2018-0486
MD5 | 074b228ed20a33acbcbb5a5d04c2b5cc
cryptmount Filesystem Manager 5.2.3
Posted Jan 13, 2018
Authored by RW Penney | Site cryptmount.sourceforge.net

cryptmount is a utility for creating and managing secure filing systems on GNU/Linux systems. After initial setup, it allows any user to mount or unmount filesystems on demand, solely by providing the decryption password, with any system devices needed to access the filing system being configured automatically. A wide variety of encryption schemes (provided by the kernel dm-crypt system and the libgcrypt library) can be used to protect both the filesystem and the access key. The protected filing systems can reside in either ordinary files or disk partitions. The package also supports encrypted swap partitions, and automatic configuration on system boot-up.

Changes: Patched to support cryptsetup-2.x. Updated to automake-1.15.
tags | tool, kernel, encryption
systems | linux, unix
MD5 | d79f5609ee89fb1b20239b7e9910df6f
Debian Security Advisory 4084-1
Posted Jan 12, 2018
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4084-1 - It was discovered that gifsicle, a tool for manipulating GIF image files, contained a flaw that could lead to arbitrary code execution.

tags | advisory, arbitrary, code execution
systems | linux, debian
advisories | CVE-2017-1000421
MD5 | 935c5bb19560c8989f888c418a53114b
Linux/x86-64 IPTables Flush Shellcode
Posted Jan 12, 2018
Authored by 0x4ndr3

43 bytes small Linux/x86-64 execve("/sbin/iptables", ["/sbin/iptables", "-F"], NULL) shellcode.

tags | x86, shellcode
systems | linux
MD5 | b6402eb0799fd8fe40b5aff352f7747a
Linux/x86-64 Add Mapping In /etc/hosts Shellcode
Posted Jan 12, 2018
Authored by 0x4ndr3

96 bytes small Linux/x86-64 add mapping (127.1.1.1 google.lk) in /etc/hosts shellcode.

tags | x86, shellcode
systems | linux
MD5 | 58571c81a05ae0a8e172b90ba5bfe997
Linux/x86-64 /bin/sh Shellcode
Posted Jan 12, 2018
Authored by 0x4ndr3

24 bytes small Linux/x86-64 execute /bin/sh shellcode.

tags | x86, shellcode
systems | linux
MD5 | 50f820da8824e476bf8fe8000f27344b
Gentoo Linux Security Advisory 201801-13
Posted Jan 12, 2018
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201801-13 - Multiple vulnerabilities have been found in TigerVNC, the worst of which may lead to arbitrary code execution. Versions less than 1.8.0 are affected.

tags | advisory, arbitrary, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2016-10207, CVE-2017-7392, CVE-2017-7393, CVE-2017-7394, CVE-2017-7395, CVE-2017-7396
MD5 | c2f30f0fe4ca6f27e9602551622a26d9
Gentoo Linux Security Advisory 201801-12
Posted Jan 12, 2018
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201801-12 - Multiple vulnerabilities have been found in icoutils, the worst of which may lead to arbitrary code execution. Versions less than 0.32.0 are affected.

tags | advisory, arbitrary, vulnerability, code execution
systems | linux, gentoo
advisories | CVE-2017-5208, CVE-2017-6009, CVE-2017-6010, CVE-2017-6011
MD5 | f3c23ee43d1d41e4d15e36e9572834b8
Gentoo Linux Security Advisory 201801-11
Posted Jan 12, 2018
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201801-11 - A vulnerability in PySAML2 might allow remote attackers to bypass authentication. Versions less than 4.5.0 are affected.

tags | advisory, remote
systems | linux, gentoo
advisories | CVE-2017-1000433
MD5 | 387fa571152dd01a2303e39ee5c4de5e
Ubuntu Security Notice USN-3531-1
Posted Jan 12, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3531-1 - It was discovered that microprocessors utilizing speculative execution and branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Spectre. A local attacker could use this to expose sensitive information, including kernel memory. This update provides the microcode updates required for the corresponding Linux kernel updates.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-5715
MD5 | 303c187345e739a1fcbd506ccc3baa95
Ubuntu Security Notice USN-3530-1
Posted Jan 12, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3530-1 - It was discovered that speculative execution performed by modern CPUs could leak information through a timing side-channel attack, and that this could be exploited in web browser JavaScript engines. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to obtain sensitive information from other domains, bypassing same-origin restrictions.

tags | advisory, web, javascript
systems | linux, ubuntu
advisories | CVE-2017-5715, CVE-2017-5753
MD5 | 3bf2820a2ba39d395b37c51cb752e3d9
Debian Security Advisory 4083-1
Posted Jan 11, 2018
Authored by Debian | Site debian.org

Debian Linux Security Advisory 4083-1 - Stephan Zeisberg discovered that poco, a collection of open source C++ class libraries, did not correctly validate file paths in ZIP archives. An attacker could leverage this flaw to create or overwrite arbitrary files.

tags | advisory, arbitrary
systems | linux, debian
advisories | CVE-2017-1000472
MD5 | a45b8d30d6ca7026bed1a8599319f4b9
Linux/ARM (Raspberry Pi) Bind Shell Shellcode
Posted Jan 11, 2018
Authored by Azeria

112 bytes small Linux/ARM (Raspberry Pi) null-free shellcode that binds a shell to 0.0.0.0:4444/TCP.

tags | shell, tcp, shellcode
systems | linux
MD5 | 80fbc5d27e17dc9e5bb4b1bf5f0abea2
phpCollab 2.5.1 Unauthenticated File Upload
Posted Jan 11, 2018
Authored by Nicolas Serra, Nick Marcoccio | Site metasploit.com

This Metasploit module exploits a file upload vulnerability in phpCollab version 2.5.1 which could be abused to allow unauthenticated users to execute arbitrary code under the context of the web server user. The exploit has been tested on Ubuntu 16.04.3 64-bit

tags | exploit, web, arbitrary, file upload
systems | linux, ubuntu
advisories | CVE-2017-6090
MD5 | 49412c9229ada92b55b3cbcd05d8eb54
Red Hat Security Advisory 2018-0081-01
Posted Jan 11, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-0081-01 - The flash-plugin package contains a Mozilla Firefox compatible Adobe Flash Player web browser plug-in. This update upgrades Flash Player to version 28.0.0.137. Security Fix: This update fixes multiple vulnerabilities in Adobe Flash Player. These vulnerabilities, detailed in the Adobe Security Bulletins listed in the References section, could allow an attacker to create a specially crafted SWF file that would cause flash-plugin to disclose sensitive information or modify its settings when the victim loaded a page containing the malicious SWF content.

tags | advisory, web, vulnerability
systems | linux, redhat
advisories | CVE-2017-11305, CVE-2018-4871
MD5 | 9a6c4db77e3ce332ec06e707d527c1b0
Ubuntu Security Notice USN-3522-4
Posted Jan 11, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3522-4 - USN-3522-2 fixed a vulnerability in the Linux Hardware Enablement kernel for Ubuntu 14.04 LTS to address Meltdown. Unfortunately, that update introduced a regression where a few systems failed to boot successfully. This update fixes the problem. Various other issues were also addressed.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2017-5754
MD5 | d73ea7e2336ce4f12a3f81d3406dd552
Ubuntu Security Notice USN-3522-3
Posted Jan 11, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3522-3 - USN-3522-1 fixed a vulnerability in the Linux kernel to address Meltdown. Unfortunately, that update introduced a regression where a few systems failed to boot successfully. This update fixes the problem. Various other issues were also addressed.

tags | advisory, kernel
systems | linux, ubuntu
advisories | CVE-2017-5754
MD5 | 4d7b4ced69dbbe793b9334bd984fd703
Ubuntu Security Notice USN-3528-1
Posted Jan 11, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3528-1 - It was discovered that Ruby incorrectly handled certain terminal emulator escape sequences. An attacker could use this to execute arbitrary code via a crafted user name. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10. It was discovered that Ruby incorrectly handled certain strings. An attacker could use this to cause a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, ruby
systems | linux, ubuntu
advisories | CVE-2017-10784, CVE-2017-14033, CVE-2017-14064, CVE-2017-17790
MD5 | dc434c8e6d1bb07724a5d915b4e77117
Ubuntu Security Notice USN-3527-1
Posted Jan 11, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3527-1 - Joseph Bisch discovered that Irssi incorrectly handled incomplete escape codes. If a user were tricked into using malformed commands or opening malformed files, an attacker could use this issue to cause Irssi to crash, resulting in a denial of service. Joseph Bisch discovered that Irssi incorrectly handled settings the channel topic without specifying a sender. A malicious IRC server could use this issue to cause Irssi to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, denial of service
systems | linux, ubuntu
advisories | CVE-2018-5205, CVE-2018-5206, CVE-2018-5207, CVE-2018-5208
MD5 | a4b97d44d7baaee22df4be21e098e115
Ubuntu Security Notice USN-3523-3
Posted Jan 11, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3523-3 - Jann Horn discovered that the Berkeley Packet Filter implementation in the Linux kernel did not properly check the relationship between pointer values and the BPF stack. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Jann Horn discovered that the Berkeley Packet Filter implementation in the Linux kernel improperly performed sign extension in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-16995, CVE-2017-17862, CVE-2017-17863, CVE-2017-17864
MD5 | 5d97b063cad48e5c8411fa2be179fa07
Ubuntu Security Notice USN-3532-2
Posted Jan 11, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3532-2 - USN-3523-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.10. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 17.10 for Ubuntu 16.04 LTS. Jann Horn discovered that microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Meltdown. A local attacker could use this to expose sensitive information, including kernel memory. Various other issues were also addressed.

tags | advisory, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-16995, CVE-2017-17862, CVE-2017-17863, CVE-2017-17864, CVE-2017-5754
MD5 | c5a3f8d746ddf39bee7abb6f9185111e
Ubuntu Security Notice USN-3526-1
Posted Jan 11, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3526-1 - It was discovered that SSSD incorrectly handled certain inputs when querying its local cache. An attacker could use this to inject arbitrary code and expose sensitive information.

tags | advisory, arbitrary, local
systems | linux, ubuntu
advisories | CVE-2017-12173
MD5 | 27c7460dc24953e8d93616de4001a145
Ubuntu Security Notice USN-3525-1
Posted Jan 11, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3525-1 - Jann Horn discovered that microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Meltdown. A local attacker could use this to expose sensitive information, including kernel memory.

tags | advisory, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-5754
MD5 | f6d4ea5c2df0b5026fb31f44c27eb62c
Ubuntu Security Notice USN-3524-2
Posted Jan 11, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3524-2 - USN-3524-1 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. Jann Horn discovered that microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized memory reads via sidechannel attacks. This flaw is known as Meltdown. A local attacker could use this to expose sensitive information, including kernel memory. Various other issues were also addressed.

tags | advisory, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-5754
MD5 | 762d3d76967b1badce64abde59d94ec7
Linux/x86 execve(/bin/sh) Polymorphic Shellcode
Posted Jan 11, 2018
Authored by Debashis Pal

53 bytes small Linux/x86 execve(/bin/sh) polymorphic shellcode.

tags | x86, shellcode
systems | linux
MD5 | 8969e8597aaffe29988a671c18982769
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