-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - ------------------------------------------------------------------------- Debian Security Advisory DSA-3160-1 security@xxxxxxxxxx http://www.debian.org/security/ Ben Hutchings February 23, 2015 http://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : linux CVE ID : CVE-2013-7421 CVE-2014-7822 CVE-2014-8160 CVE-2014-8559 CVE-2014-9585 CVE-2014-9644 CVE-2014-9683 CVE-2015-0239 CVE-2015-1420 CVE-2015-1421 CVE-2015-1593 Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service, information leaks or privilege escalation. CVE-2013-7421 / CVE-2014-9644 It was discovered that the Crypto API allowed unprivileged users to load arbitrary kernel modules. A local user can use this flaw to exploit vulnerabilities in modules that would not normally be loaded. CVE-2014-7822 Akira Fujita found that the splice() system call did not validate the given file offset and length. A local unprivileged user can use this flaw to cause filesystem corruption on ext4 filesystems, or possibly other effects. CVE-2014-8160 Florian Westphal discovered that a netfilter (iptables/ip6tables) rule accepting packets to a specific SCTP, DCCP, GRE or UDPlite port/endpoint could result in incorrect connection tracking state. If only the generic connection tracking module (nf_conntrack) was loaded, and not the protocol-specific connection tracking module, this would allow access to any port/endpoint of the specified protocol. CVE-2014-8559 It was found that kernel functions that iterate over a directory tree can dead-lock or live-lock in case some of the directory entries were recently deleted or dropped from the cache. A local unprivileged user can use this flaw for denial of service. CVE-2014-9585 Andy Lutomirski discovered that address randomisation for the vDSO in 64-bit processes is extremely biased. A local unprivileged user could potentially use this flaw to bypass the ASLR protection mechanism. CVE-2014-9683 Dmitry Chernenkov discovered that eCryptfs writes past the end of the allocated buffer during encrypted filename decoding, resulting in local denial of service. CVE-2015-0239 It was found that KVM did not correctly emulate the x86 SYSENTER instruction. An unprivileged user within a guest system that has not enabled SYSENTER, for example because the emulated CPU vendor is AMD, could potentially use this flaw to cause a denial of service or privilege escalation in that guest. CVE-2015-1420 It was discovered that the open_by_handle_at() system call reads the handle size from user memory a second time after validating it. A local user with the CAP_DAC_READ_SEARCH capability could use this flaw for privilege escalation. CVE-2015-1421 It was found that the SCTP implementation could free an authentication state while it was still in use, resulting in heap corruption. This could allow remote users to cause a denial of service or privilege escalation. CVE-2015-1593 It was found that address randomisation for the initial stack in 64-bit processes was limited to 20 rather than 22 bits of entropy. A local unprivileged user could potentially use this flaw to bypass the ASLR protection mechanism. For the stable distribution (wheezy), these problems have been fixed in version 3.2.65-1+deb7u2. Additionally this update fixes regressions introduced in versions 3.2.65-1 and 3.2.65-1+deb7u1. For the upcoming stable distribution (jessie), these problems will be fixed soon (a subset is fixed already). For the unstable distribution (sid), these problems will be fixed soon (a subset is fixed already). We recommend that you upgrade your linux packages. Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@xxxxxxxxxxxxxxxx -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJU62ZxAAoJEBDCk7bDfE42ii8P/0HlB7eLQP9bg46DAQfg6mzi QrLP3IbL/T3xtE9mbNDYSJ+5ndKdDEwZ73iFt+2lWsBu9Xmyyq0866NWc054jIV7 hXrHb4gohrl1ZsShfPrq0ZwcMpg+nc9lLMTson2VXHDFV9LViI7NV1cjykQv+/FV 9n5sfzDhsSPaI8tjzy6AU0ThKTfGFDXK64zBHuKRRO1WSQwcFtdFs05R6BS5VWrT wA/TT319syn9FCacMmnGkre00nCZyHsws4B2TAsiVdXPVeaOpHOxmRJIF+P6FOqE kkj7uxdyc2xPCupVmQghv37cgI4hnEBiAMyr4GtyDqnSEKpLgDGtLmkzd1dxyh3t teMIqbbvKpVqCeXnBbzWZzQBMNM8E9cx7tM0zxflc6GLMhenlTWqyDqLUPVxNnCW j0M3nI55a7Tcn3cTOce5+HOGUUfMyHnM81tUP8akr9EkzL3PKDbE5099yD2USa3W g4OLs6sm4YSrp0nGVvuFT5J/avrL3RtEojCc6oiHpKagjDj42B3hLPnea4fusdzd Me0m3HSkOSi5Y/9Bi7imLIGwmDpb+p/OKXGWwKwEQc8yH/cx30my6VSX0V+3meNN qv/aKaTZOEI35pS3qrC0EyP+J3bJbq0oKM/wce/lykXgeCQ+5yYZlN5wYbdelKiC lP51Rd4fMF4PWh9NyqxG =ICMx -----END PGP SIGNATURE-----
