Out-of-bounds read/write via RTCP RPSI parser
Published Apr 6, 2022 · Updated Apr 23, 2025
Out-of-bounds read/write in PJSIP PJPROJECT 2.12 and earlier allows remote attackers to affect applications via crafted RTCP RPSI packets. The pjmedia_rtcp_fb_parse_rpsi() parser processes incoming Reference Picture Selection Indication feedback without sufficient bounds validation, permitting memory access outside the packet or destination buffer. Exploitation requires an application that directly calls this parser and accepts attacker-controlled RTCP traffic; consequences include data disclosure, memory corruption, or service interruption.
Summary
What happened
Out-of-bounds read/write in PJSIP PJPROJECT 2.12 and earlier allows remote attackers to affect applications via crafted RTCP RPSI packets. The pjmedia_rtcp_fb_parse_rpsi() parser processes incoming Reference Picture Selection Indication feedback without sufficient bounds validation, permitting memory access outside the packet or destination buffer. Exploitation requires an application that directly calls this parser and accepts attacker-controlled RTCP traffic; consequences include data disclosure, memory corruption, or service interruption.
The record
- CVE
- CVE-2022-24786
- Published
- Apr 6, 2022
- Updated
- Apr 23, 2025
- Vendor
- PJSIP
- Product
- PJPROJECT
- Classifications
- CWE-125, CWE-787, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 6, 2022CVE publishedPublication date reported by the CVE source.
- Apr 23, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=<= 2.12
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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