Ubuntu Security Notice 1284-2 - USN-1284-1 fixed vulnerabilities in Update Manager. One of the fixes introduced a regression for Kubuntu users attempting to upgrade to a newer Ubuntu release. This update fixes the problem. David Black discovered that Update Manager incorrectly extracted the downloaded upgrade tarball before verifying its GPG signature. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could potentially be used to replace arbitrary files. David Black discovered that Update Manager created a temporary directory in an insecure fashion. A local attacker could possibly use this flaw to read the XAUTHORITY file of the user performing the upgrade. This update also adds a hotfix to Update Notifier to handle cases where the upgrade is being performed from CD media. Various other issues were also addressed.
71dfff11f80eee52e8564624872ea61fUbuntu Security Notice 1366-1 - Paul Wise discovered that debdiff did not properly sanitize its input when processing .dsc and .changes files. If debdiff processed a crafted file, an attacker could execute arbitrary code with the privileges of the user invoking the program. Raphael Geissert discovered that debdiff did not properly sanitize its input when processing source packages. If debdiff processed an original source tarball, with crafted filenames in the top-level directory, an attacker could execute arbitrary code with the privileges of the user invoking the program. Various other issues were also addressed.
021158b8a9c5ab2488cef9034096bad1Ubuntu Security Notice 1365-1 - It was discovered that Puppet would allow remote ralsh under certain circumstances. An attacker on an authenticated puppet node could exploit this to view or manipulate resources on other Puppet nodes.
f9bb20c75abf2c6fe7cf966e7c449b5dUbuntu Security Notice 1359-1 - It was discovered that Tomcat incorrectly performed certain caching and recycling operations. A remote attacker could use this flaw to obtain read access to IP address and HTTP header information in certain cases. This issue only applied to Ubuntu 11.10. It was discovered that Tomcat computed hash values for form parameters without restricting the ability to trigger hash collisions predictably. A remote attacker could cause a denial of service by sending many crafted parameters. Various other issues were also addressed.
3ea378aa2d14bd07f4ba62946f58cce1Ubuntu Security Notice 1364-1 - A flaw was discovered in the XFS filesystem. If a local user mounts a specially crafted XFS image it could potential execute arbitrary code on the system. Andy Whitcroft discovered a that the Overlayfs filesystem was not doing the extended permission checks needed by cgroups and Linux Security Modules (LSMs). A local user could exploit this to by-pass security policy and access files that should not be accessible. Various other issues were also addressed.
81c901a7230d414992297f7d2373c766Ubuntu Security Notice 1363-1 - A flaw was found in KVM's Programmable Interval Timer (PIT). When a virtual interrupt control is not available a local user could use this to cause a denial of service by starting a timer. A flaw was discovered in the XFS filesystem. If a local user mounts a specially crafted XFS image it could potential execute arbitrary code on the system. Andy Whitcroft discovered a that the Overlayfs filesystem was not doing the extended permission checks needed by cgroups and Linux Security Modules (LSMs). A local user could exploit this to by-pass security policy and access files that should not be accessible. Various other issues were also addressed.
5272d68bea7e1475f014348307a446fdUbuntu Security Notice 1362-1 - Han-Wen Nienhuys reported a flaw in the FUSE kernel module. A local user who can mount a FUSE file system could cause a denial of service. A flaw was found in KVM's Programmable Interval Timer (PIT). When a virtual interrupt control is not available a local user could use this to cause a denial of service by starting a timer. A flaw was discovered in the XFS filesystem. If a local user mounts a specially crafted XFS image it could potential execute arbitrary code on the system. Various other issues were also addressed.
c8bd4f245aecf49a5f4e2269db3087adUbuntu Security Notice 1361-1 - Han-Wen Nienhuys reported a flaw in the FUSE kernel module. A local user who can mount a FUSE file system could cause a denial of service. A flaw was found in KVM's Programmable Interval Timer (PIT). When a virtual interrupt control is not available a local user could use this to cause a denial of service by starting a timer. A flaw was discovered in the XFS filesystem. If a local user mounts a specially crafted XFS image it could potential execute arbitrary code on the system. Various other issues were also addressed.
fa193661ffe5a12b89efc1f4e8c772b7Ubuntu Security Notice 1358-2 - USN 1358-1 fixed multiple vulnerabilities in PHP. The fix for CVE-2012-0831 introduced a regression where the state of the magic_quotes_gpc setting was not correctly reflected when calling the ini_get() function. Various other issues were also addressed.
afb798bff046c3e88238eb395ad62b28Ubuntu Security Notice 1360-1 - Andrew McCreight and Olli Pettay discovered a use-after-free vulnerability in the XBL bindings. An attacker could exploit this to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox.
a9fb128e7008b88b8da7f2f72a143016Ubuntu Security Notice 1358-1 - It was discovered that PHP computed hash values for form parameters without restricting the ability to trigger hash collisions predictably. This could allow a remote attacker to cause a denial of service by sending many crafted parameters. ATTENTION: this update changes previous PHP behavior by limiting the number of external input variables to 1000. This may be increased by adding a "max_input_vars" directive to the php.ini configuration file. See http://www.php.net/manual/en/info.configuration.php#ini.max-input-vars for more information. Various other issues were also addressed.
283098275d1a7663b375247bc413b584Ubuntu Security Notice 1357-1 - It was discovered that the elliptic curve cryptography (ECC) subsystem in OpenSSL, when using the Elliptic Curve Digital Signature Algorithm (ECDSA) for the ECDHE_ECDSA cipher suite, did not properly implement curves over binary fields. This could allow an attacker to determine private keys via a timing attack. This issue only affected Ubuntu 8.04 LTS, Ubuntu 10.04 LTS, Ubuntu 10.10 and Ubuntu 11.04. Adam Langley discovered that the ephemeral Elliptic Curve Diffie-Hellman (ECDH) functionality in OpenSSL did not ensure thread safety while processing handshake messages from clients. This could allow a remote attacker to cause a denial of service via out-of-order messages that violate the TLS protocol. This issue only affected Ubuntu 8.04 LTS, Ubuntu 10.04 LTS, Ubuntu 10.10 and Ubuntu 11.04. Various other issues were also addressed.
cb9906382e5228bc3514db5a3b873c3aUbuntu Security Notice 1350-1 - Jesse Ruderman and Bob Clary discovered memory safety issues affecting Thunderbird. If the user were tricked into opening a specially crafted page, an attacker could exploit these to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Thunderbird. It was discovered that Thunderbird did not properly handle node removal in the DOM. If the user were tricked into opening a specially crafted page, an attacker could exploit this to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Thunderbird. Various other issues were also addressed.
ba35ea445d868f963f5c6b441ee62a0cUbuntu Security Notice 1353-1 - Jesse Ruderman and Bob Clary discovered memory safety issues affecting the Gecko Browser engine. If the user were tricked into opening a specially crafted page, an attacker could exploit these to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Xulrunner. It was discovered that the Gecko Browser engine did not properly handle node removal in the DOM. If the user were tricked into opening a specially crafted page, an attacker could exploit this to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Xulrunner. Various other issues were also addressed.
de636528a149177f7885c54186bc08b7Ubuntu Security Notice 1356-1 - A flaw was discovered in the XFS filesystem. If a local user mounts a specially crafted XFS image it could potential execute arbitrary code on the system. Chen Haogang discovered an integer overflow that could result in memory corruption. A local unprivileged user could use this to crash the system. A flaw was found in the linux kernels IPv4 IGMP query processing. A remote attacker could exploit this to cause a denial of service. Various other issues were also addressed.
6347ecda19b460ba56d66884c67a8ef9Ubuntu Security Notice 1355-1 - It was discovered that if a user chose to export their Firefox Sync key the "Firefox Recovery Key.html" file is saved with incorrect permissions, making the file contents potentially readable by other users. Nicolas Gregoire and Aki Helin discovered that when processing a malformed embedded XSLT stylesheet, Firefox can crash due to memory corruption. If the user were tricked into opening a specially crafted page, an attacker could exploit this to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. Various other issues were also addressed.
21014e7685b2de0234ac75fd2b4a5509Ubuntu Security Notice 1355-2 - USN-1355-1 fixed vulnerabilities in Firefox. This update provides an updated Mozvoikko package for use with the latest Firefox. It was discovered that if a user chose to export their Firefox Sync key the "Firefox Recovery Key.html" file is saved with incorrect permissions, making the file contents potentially readable by other users. Nicolas Gregoire and Aki Helin discovered that when processing a malformed embedded XSLT stylesheet, Firefox can crash due to memory corruption. If the user were tricked into opening a specially crafted page, an attacker could exploit this to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. Various other issues were also addressed.
8791de077f5bd63d5d9c170bf7739905Ubuntu Security Notice 1355-3 - USN-1355-1 fixed vulnerabilities in Firefox. This update provides updated ubufox and webfav packages for use with the latest Firefox. It was discovered that if a user chose to export their Firefox Sync key the "Firefox Recovery Key.html" file is saved with incorrect permissions, making the file contents potentially readable by other users. Nicolas Gregoire and Aki Helin discovered that when processing a malformed embedded XSLT stylesheet, Firefox can crash due to memory corruption. If the user were tricked into opening a specially crafted page, an attacker could exploit this to cause a denial of service via application crash, or potentially execute code with the privileges of the user invoking Firefox. Various other issues were also addressed.
89b0a01e7c3a96dcdd52016aac1b682dUbuntu Security Notice 1354-1 - It was discovered that usbmuxd did not correctly perform bounds checking when processing the SerialNumber field of USB devices. An attacker with physical access could use this to crash usbmuxd or potentially execute arbitrary code as the 'usbmux' user.
bc55f38d438b4bc8e697d15959367932Ubuntu Security Notice 1351-1 - Hayawardh Vijayakumar discovered that AccountsService incorrectly handled privileges when modifying the language settings on Ubuntu. A local attacker could exploit this issue to modify arbitrary files, and possibly create a denial of service or obtain increased privileges.
29be9b8957686681cce2766b2dd30e6cUbuntu Security Notice 1352-1 - David Black discovered that Software Properties incorrectly validated server certificates when performing secure connections to download PPA GPG key fingerprints. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to install altered package repository GPG keys.
2c372ac1f10af33555255c83954b8031Ubuntu Security Notice 1349-1 - It was discovered that the X wrapper incorrectly checked certain console permissions when launched by unprivileged users. An attacker connected remotely could use this flaw to start X, bypassing the console permissions check.
2d7a0c29683726ba738d38dfbb28231cUbuntu Security Notice 1348-1 - It was discovered that ICU did not properly handle invalid locale data during Unicode conversion. If an application using ICU processed crafted data, an attacker could cause it to crash or potentially execute arbitrary code with the privileges of the user invoking the program.
461155e39c9d65c89229d5b386cb826aUbuntu Security Notice 1342-1 - J. Aedla discovered that the kernel incorrectly handled /proc/<pid>/mem permissions. A local attacker could exploit this and gain root privileges.
7ab38e763da26b31a76f9615147ecd7eUbuntu Security Notice 1347-1 - It was discovered that Evince did not properly parse AFM font files when processing DVI files. If a user were tricked into opening a specially crafted DVI file, an attacker could cause Evince to crash or potentially execute arbitrary code with the privileges of the user invoking the program. In the default installation, attackers would be isolated by the Evince AppArmor profile. Various other issues were also addressed.
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