CVE-2023-38703
criticalpriority · track · 40EPSS 0.016 · 76 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
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references (13)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-38703/cnnvd
- https://github.com/pjsip/pjproject/commit/6dc9b8c181aff39845f02b4626e0812820d4ef0dcnnvd
- https://github.com/pjsip/pjproject/security/advisories/GHSA-f76w-fh7c-pc66cnnvd
- https://lists.debian.org/debian-lts-announce/2023/12/msg00019.htmlcnnvd
- https://vigilance.fr/vulnerability/PJSIP-use-after-free-via-Unsynchronized-Higher-Level-Transport-43194cnnvd
- https://www.auscert.org.au/bulletins/ESB-2024.0005cnnvd
- https://www.auscert.org.au/bulletins/ESB-2024.0105cnnvd
- https://github.com/pjsip/pjproject/commit/6dc9b8c181aff39845f02b4626e0812820d4ef0denisa_euvd
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