(CVE-2012-5976) AST-2012-014 Crashes due to large stack allocations when using TCP

[Dmitri Bachtin]

A new security advisory with patches has been recently released by Digium:

http://downloads.asterisk.org/pub/security/AST-2012-014.html

Multiple stack consumption vulnerabilities in Asterisk Open Source 1.8.x before 1.8.19.1, 10.x before 10.11.1, and 11.x before 11.1.2; Certified Asterisk 1.8.11 before 1.8.11-cert10; and Asterisk Digiumphones 10.x-digiumphones before 10.11.1-digiumphones allow remote attackers to cause a denial of service (daemon crash) via TCP data using the (1) SIP, (2) HTTP, or (3) XMPP protocol.

[Dmitri Bachtin (damg)]

Bug tracker entry: https://issues.asterisk.org/jira/browse/ASTERISK-20658

[Marc Deslauriers (mdeslaur)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. Since the package referred to in this bug is in universe or multiverse, it is community maintained. If you are able, I suggest coordinating with upstream and posting a debdiff for this issue. When a debdiff is available, members of the security team will review it and publish the package. See the following link for more information: https://wiki.ubuntu.com/SecurityTeam/UpdateProcedures

[Launchpad Janitor (janitor)]

This bug was fixed in the package asterisk - 1:1.8.13.1~dfsg-3ubuntu1

---------------
asterisk (1:1.8.13.1~dfsg-3ubuntu1) saucy; urgency=low

  * Merge from Debian unstable. (LP: #1205644) Remaining changes:
    - debian/asterisk.init:
      + chown /dev/dahdi
    - debian/control, debian/rules:
      + Enable Hardening Wrapper (PIE and BIND_NOW).
      + Build against libical 1.0.
    - debian/patches/armhf-fixes:
      + Fix FTBFS on armhf.
  * Fixed security issues:
    - CVE-2012-5976 (LP: #1097687)
    - CVE-2012-5977 (LP: #1097691)
    - CVE-2013-2686
    - CVE-2013-2264

asterisk (1:1.8.13.1~dfsg-3) unstable; urgency=high

  * Rewrtote sip.conf parts of AST-2012-014: dropped patches
    fix-sip-tcp-no-FILE and fix-sip-tls-leak.
  * Reverting other changes rejected by the release team: README.Debian,
    powerpcspe and fix_xmpp_19532 dropped (#545272 and #701505 reopened).

asterisk (1:1.8.13.1~dfsg-2) unstable; urgency=high

  * Patches backported from Asterisk 1.8.19.1 (Closes: #697230):
    - Patch AST-2012-014 (CVE-2012-5976) - fixes Crashes due to large stack
      allocations when using TCP.
      The following two fixes were also pulled in order to easily apply it:
      - Patch fix-sip-tcp-no-FILE - Switch to reading with a recv loop
      - Patch fix-sip-tls-leak - Memory leak in the SIP TLS code
    - Patch AST-2012-015 (CVE-2012-5977) - Denial of Service Through
      Exploitation of Device State Caching
  * Patch powerpcspe: Fix OSARCH for powerpcspe (Closes: #701505).
  * README.Debian: document running the testsuite.
  * Patch fix_xmpp_19532: fix a crash of the XMPP code (Closes: #545272).
  * Patches backported from Asterisk 1.8.20.2 (Closes: #704114):
    - Patch AST-2013-002 (CVE-2013-2686): Prevent DoS in HTTP server with
      a large POST.
    - Patch AST-2013-003 (CVE-2013-2264): Prevent username disclosure in
      SIP channel driver.
  * Patch bluetooth_bind - fix breakage of chan_mobile (Closes: #614786).
 -- Artur Rona <email address hidden> Sat, 27 Jul 2013 14:56:17 +0200