First published: Thu Jan 19 2023(Updated: )
Sofia-SIP is an open-source SIP User-Agent library, compliant with the IETF RFC3261 specification. In affected versions Sofia-SIP **lacks both message length and attributes length checks** when it handles STUN packets, leading to controllable heap-over-flow. For example, in stun_parse_attribute(), after we get the attribute's type and length value, the length will be used directly to copy from the heap, regardless of the message's left size. Since network users control the overflowed length, and the data is written to heap chunks later, attackers may achieve remote code execution by heap grooming or other exploitation methods. The bug was introduced 16 years ago in sofia-sip 1.12.4 (plus some patches through 12/21/2006) to in tree libs with git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@3774 d0543943-73ff-0310-b7d9-9358b9ac24b2. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Credit: security-advisories@github.com
Affected Software | Affected Version | How to fix |
---|---|---|
debian/sofia-sip | <=1.12.11+20110422.1-2.1 | 1.12.11+20110422.1-2.1+deb10u4 1.12.11+20110422.1-2.1+deb11u2 1.12.11+20110422.1+1e14eea~dfsg-6 |
SignalWire Sofia-SIP | <1.13.11 |
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CVE-2023-22741 is a vulnerability in the Sofia-SIP library that allows a heap overflow due to the lack of message length and attribute length checks in handling STUN packets.
CVE-2023-22741 has a severity rating of 9.8, which is classified as critical.
The affected versions of Sofia-SIP are 1.12.11+20110422.1-2.1+deb10u4, 1.12.11+20110422.1-2.1+deb11u2, and 1.12.11+20110422.1+1e14eea~dfsg-6.
To fix CVE-2023-22741, it is recommended to update Sofia-SIP to a version that includes the necessary security patches.
You can find more information about CVE-2023-22741 in the references provided: [Link 1](https://github.com/freeswitch/sofia-sip/commit/9defd6f72dd416ee4fcc1a23cccbb159990da0f6), [Link 2](https://github.com/freeswitch/sofia-sip/security/advisories/GHSA-8599-x7rq-fr54), [Link 3](https://security-tracker.debian.org/tracker/CVE-2023-22741).