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Debian LTS Advisory DLA-3091-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                          Abhijith PA
September 02, 2022                            https://wiki.debian.org/LTS
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Package        : sofia-sip
Version        : 1.12.11+20110422.1-2.1+deb10u1
CVE ID         : CVE-2022-31001 CVE-2022-31002 CVE-2022-31003

The following vulnerabilities have been discovered in the sofia-sip, a 
SIP user-agent library. 

CVE-2022-31001

   An attacker can send a message with evil sdp to FreeSWITCH, which 
   will make `n` bigger and trigger out-of-bound access and may cause 
   crash
   
CVE-2022-31002

   An attacker can send a message with evil sdp to FreeSWITCH, which 
   may cause crash.This type of crash is caused by url ending with %, 
   the craft message looks like this.

CVE-2022-31003

   When parsing each line of a sdp message, `rest = record + 2` will 
   access the memory behind `\0` and cause an out-of-bounds write. 
   An attacker can send a message with evil sdp to FreeSWITCH, 
   causing a crash or more serious consequence, such as remote code 
   execution.

For Debian 10 buster, these problems have been fixed in version
1.12.11+20110422.1-2.1+deb10u1.

We recommend that you upgrade your sofia-sip packages.

For the detailed security status of sofia-sip please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/sofia-sip

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS