Bug#1059307: ring: CVE-2023-38703

[Moritz Mühlenhoff]

Source: ring
X-Debbugs-CC: team at security.debian.org
Severity: grave
Tags: security

Hi,

The following vulnerability was published for pjsig, which is
bundled in ring:

CVE-2023-38703[0]:
| PJSIP is a free and open source multimedia communication library
| written in C with high level API in C, C++, Java, C#, and Python
| languages. SRTP is a higher level media transport which is stacked
| upon a lower level media transport such as UDP and ICE. Currently a
| higher level transport is not synchronized with its lower level
| transport that may introduce use-after-free issue. This
| vulnerability affects applications that have SRTP capability
| (`PJMEDIA_HAS_SRTP` is set) and use underlying media transport other
| than UDP. This vulnerability’s impact may range from unexpected
| application termination to control flow hijack/memory corruption.
| The patch is available as a commit in the master branch.

https://github.com/pjsip/pjproject/security/advisories/GHSA-f76w-fh7c-pc66
https://github.com/pjsip/pjproject/commit/6dc9b8c181aff39845f02b4626e0812820d4ef0d (2.14)

If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2023-38703
    https://www.cve.org/CVERecord?id=CVE-2023-38703

Please adjust the affected versions in the BTS as needed.