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Operating System: Ubuntu

Ubuntu Security Notice USN-3309-2
Posted Jul 18, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3309-2 - Jakub Jirasek discovered that GnuTLS incorrectly handled certain assignments files. If a user were tricked into processing a specially crafted assignments file, a remote attacker could possibly execute arbitrary code.

tags | advisory, remote, arbitrary
systems | linux, ubuntu
MD5 | d9adc4a5e568efdb1a578bb72c43a3d3
Ubuntu Security Notice USN-3354-1
Posted Jul 18, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3354-1 - Felix Wilhelm discovered a path traversal vulnerability in Apport when handling the ExecutablePath field in crash files. An attacker could trick a user into opening a specially crafted crash file and execute arbitrary code with the user's privileges.

tags | advisory, arbitrary
systems | linux, ubuntu
MD5 | 7f082bd743c0b05ef8874f3cb49df08c
Ubuntu Security Notice USN-3274-2
Posted Jul 18, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3274-2 - USN-3274-1 fixed a vulnerability in icu. This update provides the corresponding update for Ubuntu 12.04 ESM. A It was discovered that ICU incorrectly handled certain memory A operations when processing data. If an application using ICU processed A crafted data, a remote attacker could possibly cause it to crash or A potentially execute arbitrary code with the privileges of the user A invoking the program. Various other issues were also addressed.

tags | advisory, remote, arbitrary
systems | linux, ubuntu
MD5 | 0fddf9f1f82d4364c67f177a04c66787
Ubuntu Security Notice USN-3347-2
Posted Jul 17, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3347-2 - USN-3347-1 fixed a vulnerability in Libgcrypt. This update provides the corresponding update for Ubuntu 12.04 ESM. A Daniel J. Bernstein, Joachim Breitner, Daniel Genkin, Leon Groot A Bruinderink, Nadia Heninger, Tanja Lange, Christine van Vredendaal, and A Yuval Yarom discovered that Libgcrypt was susceptible to an attack via A side channels. A local attacker could use this attack to recover RSA A private keys. Various other issues were also addressed.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2017-7526
MD5 | fd750c8da9a13d230bb2725580662c1d
Ubuntu Security Notice USN-3353-2
Posted Jul 14, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3353-2 - USN-3353-1 fixed a vulnerability in Heimdal. This update provides the corresponding update for Samba. Jeffrey Altman, Viktor Dukhovni, and Nicolas Williams discovered that Samba clients incorrectly trusted unauthenticated portions of Kerberos tickets. A remote attacker could use this to impersonate trusted network servers or perform other attacks.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2017-11103
MD5 | 58e0ef79e0e7c5ad4201a654bb0cb440
Ubuntu Security Notice USN-3353-1
Posted Jul 14, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3353-1 - Jeffrey Altman, Viktor Dukhovni, and Nicolas Williams discovered that Heimdal clients incorrectly trusted unauthenticated portions of Kerberos tickets. A remote attacker could use this to impersonate trusted network services or perform other attacks.

tags | advisory, remote
systems | linux, ubuntu
advisories | CVE-2017-11103
MD5 | f41fb95fe553cf1266479bdfe22ad0d2
Ubuntu Security Notice USN-3352-1
Posted Jul 14, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3352-1 - It was discovered that an integer overflow existed in the range filter feature of nginx. A remote attacker could use this to expose sensitive information.

tags | advisory, remote, overflow
systems | linux, ubuntu
advisories | CVE-2017-7529
MD5 | 0a3c25fdc743605f7bb042a72bdff5bf
Ubuntu Security Notice USN-3351-1
Posted Jul 14, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3351-1 - Felix Wilhelm discovered that Evince did not safely invoke tar when handling tar comic book files. An attacker could use this to construct a malicious cbt comic book format file that, when opened in Evince, executes arbitrary code. Please note that this update disables support for cbt files in Evince.

tags | advisory, arbitrary
systems | linux, ubuntu
advisories | CVE-2017-1000083
MD5 | 7aea436d31b0e11773b9eb59d9c5be35
Ubuntu Security Notice USN-3350-1
Posted Jul 7, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3350-1 - Aleksandar Nikolic discovered that poppler incorrectly handled JPEG 2000 images. If a user or automated system were tricked into opening a crafted PDF file, an attacker could cause a denial of service or possibly execute arbitrary code with privileges of the user invoking the program. Jiaqi Peng discovered that the poppler pdfunite tool incorrectly parsed certain malformed PDF documents. If a user or automated system were tricked into opening a crafted PDF file, an attacker could cause poppler to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2017-2820, CVE-2017-7511, CVE-2017-7515, CVE-2017-9083, CVE-2017-9406, CVE-2017-9408, CVE-2017-9775
MD5 | 548be691af892f773e9a819ceafa873b
Ubuntu Security Notice USN-3321-1
Posted Jul 6, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3321-1 - Multiple security issues were discovered in Thunderbird. If a user were tricked in to opening a specially crafted website in a browsing context, an attacker could potentially exploit these to cause a denial of service, read uninitialized memory, obtain sensitive information or execute arbitrary code. Multiple security issues were discovered in the Graphite 2 library used by Thunderbird. If a user were tricked in to opening a specially crafted message, an attacker could potentially exploit these to cause a denial of service, read uninitialized memory, or execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2017-5470, CVE-2017-5472, CVE-2017-7749, CVE-2017-7750, CVE-2017-7751, CVE-2017-7752, CVE-2017-7754, CVE-2017-7756, CVE-2017-7757, CVE-2017-7758, CVE-2017-7764, CVE-2017-7771, CVE-2017-7772, CVE-2017-7773, CVE-2017-7774, CVE-2017-7775, CVE-2017-7776, CVE-2017-7777, CVE-2017-7778
MD5 | 287375d513bdda9fae3735c80fba55bf
Ubuntu Security Notice USN-3349-1
Posted Jul 6, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3349-1 - Yihan Lian discovered that NTP incorrectly handled certain large request data values. A remote attacker could possibly use this issue to cause NTP to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS. Miroslav Lichvar discovered that NTP incorrectly handled certain spoofed addresses when performing rate limiting. A remote attacker could possibly use this issue to perform a denial of service. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 16.10. Various other issues were also addressed.

tags | advisory, remote, denial of service, spoof
systems | linux, ubuntu
advisories | CVE-2016-2519, CVE-2016-7426, CVE-2016-7427, CVE-2016-7428, CVE-2016-7429, CVE-2016-7431, CVE-2016-7433, CVE-2016-7434, CVE-2016-9042, CVE-2016-9310, CVE-2016-9311, CVE-2017-6458, CVE-2017-6460, CVE-2017-6462, CVE-2017-6463, CVE-2017-6464
MD5 | f7f3fa44faf862974b40f78bbb8b5cbc
Ubuntu Security Notice USN-3348-1
Posted Jul 6, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3348-1 - It was discovered that Samba incorrectly handled dangling symlinks. A remote attacker could possibly use this issue to cause Samba to hang, resulting in a denial of service. This issue only applied to Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. In addition, this update fixes a regression introduced by USN-3267-1 that caused Samba to incorrectly handle non-wide symlinks to directories.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2017-9461
MD5 | 1a8e33061827bcdecdb8dac866c560a6
Ubuntu Security Notice USN-3347-1
Posted Jul 3, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3347-1 - Daniel J. Bernstein, Joachim Breitner, Daniel Genkin, Leon Groot Bruinderink, Nadia Heninger, Tanja Lange, Christine van Vredendaal, and Yuval Yarom discovered that Libgcrypt was susceptible to an attack via side channels. A local attacker could use this attack to recover RSA private keys. It was discovered that Libgcrypt was susceptible to an attack via side channels. A local attacker could use this attack to possibly recover EdDSA private keys. This issue only applied to Ubuntu 16.04 LTS, Ubuntu 16.10 and Ubuntu 17.04. Various other issues were also addressed.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2017-7526, CVE-2017-9526
MD5 | f7586c3b8130c5bffe6e14dc9684fda6
Linux Kernel ldso_dynamic Stack Clash Privilege Escalation
Posted Jun 30, 2017
Site qualys.com

Linux kernel ldso_dynamic stack clash privilege escalation exploit. This affects Debian 9/10, Ubuntu 14.04.5/16.04.2/17.04, and Fedora 23/24/25.

tags | exploit, kernel
systems | linux, debian, fedora, ubuntu
advisories | CVE-2017-1000366, CVE-2017-1000371
MD5 | 26e7fd3397117950b21fa67eb23afc32
Linux Kernel ldso_hwcap_64 Stack Clash Privilege Escalation
Posted Jun 30, 2017
Site qualys.com

Linux kernel ldso_hwcap_64 stack clash privilege escalation exploit. This affects Debian 7.7/8.5/9.0, Ubuntu 14.04.2/16.04.2/17.04, Fedora 22/25, and CentOS 7.3.1611.

tags | exploit, kernel
systems | linux, debian, fedora, ubuntu, centos
advisories | CVE-2017-1000366, CVE-2017-1000379
MD5 | 0807adfea74deef734fd4ac194527b9c
Ubuntu Security Notice USN-3323-2
Posted Jun 30, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3323-2 - USN-3323-1 fixed a vulnerability in the GNU C Library. This update provides the corresponding update for Ubuntu 12.04 ESM. It was discovered that the GNU C library did not properly handle memory when processing environment variables for setuid programs. A local attacker could use this in combination with another vulnerability to gain administrative privileges. Various other issues were also addressed.

tags | advisory, local
systems | linux, ubuntu
advisories | CVE-2017-1000366
MD5 | a78b5e8caa51c4d2d2fa51e3fe96b76a
Ubuntu Security Notice USN-3346-1
Posted Jun 30, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3346-1 - Clement Berthaux discovered that Bind did not correctly check TSIG authentication for zone update requests. An attacker could use this to improperly perform zone updates. Clement Berthaux discovered that Bind did not correctly check TSIG authentication for zone transfer requests. An attacker could use this to improperly transfer entire zones.

tags | advisory
systems | linux, ubuntu
advisories | CVE-2017-3142, CVE-2017-3143
MD5 | 64ba1a86998e890e6e111e8ae95e7d42
Ubuntu Security Notice USN-3342-2
Posted Jun 30, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3342-2 - USN-3342-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.10. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.10 for Ubuntu 16.04 LTS. USN-3333-1 fixed a vulnerability in the Linux kernel. However, that fix introduced regressions for some Java applications. This update addresses the issue. It was discovered that a use-after-free flaw existed in the filesystem encryption subsystem in the Linux kernel. A local attacker could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, java, denial of service, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-1000363, CVE-2017-5577, CVE-2017-7294, CVE-2017-7374, CVE-2017-8890, CVE-2017-9074, CVE-2017-9075, CVE-2017-9076, CVE-2017-9077, CVE-2017-9242
MD5 | bc0f3fd59ebd9a60119251cd743295fc
Ubuntu Security Notice USN-3345-1
Posted Jun 29, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3345-1 - USN 3324-1 fixed a vulnerability in the Linux kernel. However, that fix introduced regressions for some Java applications. This update addresses the issue. Roee Hay discovered that the parallel port printer driver in the Linux kernel did not properly bounds check passed arguments. A local attacker with write access to the kernel command line arguments could use this to execute arbitrary code. Various other issues were also addressed.

tags | advisory, java, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-1000363, CVE-2017-8890, CVE-2017-9074, CVE-2017-9075, CVE-2017-9076, CVE-2017-9077, CVE-2017-9150, CVE-2017-9242
MD5 | 392c68c83777ab321050bb261fd7168e
Ubuntu Security Notice USN-3344-2
Posted Jun 29, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3344-2 - USN-3344-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. USN 3334-1 fixed a vulnerability in the Linux kernel. However, that fix introduced regressions for some Java applications. This update addresses the issue. Various other issues were also addressed.

tags | advisory, java, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-1000363, CVE-2017-7487, CVE-2017-8890, CVE-2017-9074, CVE-2017-9075, CVE-2017-9076, CVE-2017-9077, CVE-2017-9242
MD5 | a01173af2c01dcfab9e203f2cb11e465
Ubuntu Security Notice USN-3344-1
Posted Jun 29, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3344-1 - USN 3328-1 fixed a vulnerability in the Linux kernel. However, that fix introduced regressions for some Java applications. This update addresses the issue. Roee Hay discovered that the parallel port printer driver in the Linux kernel did not properly bounds check passed arguments. A local attacker with write access to the kernel command line arguments could use this to execute arbitrary code. Various other issues were also addressed.

tags | advisory, java, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-1000363, CVE-2017-7487, CVE-2017-8890, CVE-2017-9074, CVE-2017-9075, CVE-2017-9076, CVE-2017-9077, CVE-2017-9242
MD5 | 18d09712355ffcdb6d83be14c413a956
Ubuntu Security Notice USN-3342-1
Posted Jun 29, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3342-1 - USN 3326-1 fixed a vulnerability in the Linux kernel. However, that fix introduced regressions for some Java applications. This update addresses the issue. It was discovered that a use-after-free flaw existed in the filesystem encryption subsystem in the Linux kernel. A local attacker could use this to cause a denial of service. Roee Hay discovered that the parallel port printer driver in the Linux kernel did not properly bounds check passed arguments. A local attacker with write access to the kernel command line arguments could use this to execute arbitrary code. Various other issues were also addressed.

tags | advisory, java, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-1000363, CVE-2017-5577, CVE-2017-7294, CVE-2017-7374, CVE-2017-8890, CVE-2017-9074, CVE-2017-9075, CVE-2017-9076, CVE-2017-9077, CVE-2017-9242
MD5 | f9f20ce642e36e4d3305c14589f1e618
Ubuntu Security Notice USN-3343-1
Posted Jun 29, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3343-1 - USN 3335-1 fixed a vulnerability in the Linux kernel. However, that fix introduced regressions for some Java applications. This update addresses the issue. It was discovered that a use-after-free vulnerability in the core voltage regulator driver of the Linux kernel. 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, java, denial of service, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2014-9940, CVE-2017-0605, CVE-2017-1000363, CVE-2017-7294, CVE-2017-8890, CVE-2017-9074, CVE-2017-9075, CVE-2017-9076, CVE-2017-9077, CVE-2017-9242
MD5 | 75b8749e3be210e73420b76ef41a598d
Ubuntu Security Notice USN-3343-2
Posted Jun 29, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3343-2 - USN 3343-1 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. USN 3335-2 fixed a vulnerability in the Linux kernel. However, that fix introduced regressions for some Java applications. This update addresses the issue. Various other issues were also addressed.

tags | advisory, java, kernel, vulnerability
systems | linux, ubuntu
advisories | CVE-2014-9940, CVE-2017-0605, CVE-2017-1000363, CVE-2017-7294, CVE-2017-8890, CVE-2017-9074, CVE-2017-9075, CVE-2017-9076, CVE-2017-9077, CVE-2017-9242
MD5 | d771472809a932be46f79c1409e1dd9d
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
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