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Fri, 04 Sep 2026 18:30:00 +0000
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Fri, 04 Sep 2026 17:30:00 +0000
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| Description | PJSIP is a free and open source multimedia communication library written in C. Prior to commit a1b707c, a stack buffer overflow exists in the SRTP/SDES media transport when processing a=crypto attributes during SDP offer/answer (sdes_encode_sdp() in transport_srtp_sdes.c). This affects applications with SRTP enabled (use_srtp optional or mandatory, using SDES keying). During media negotiation, the crypto attributes from the remote SDP are collected into a fixed-size array without bounding their number; a remote peer that includes an excessive number of a=crypto attributes in a single media description can write past the end of that array on the stack. This is reachable from an incoming SIP INVITE during offer/answer, before application-level authentication. Impact may range from unexpected application termination to control flow hijack/memory corruption. Applications that do not enable SRTP are not affected. This issue has been patched via commit a1b707c. | |
| Title | PJSIP: Stack overflow parsing SDP a=crypto attributes | |
| Weaknesses | CWE-121 | |
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cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-09-04T17:26:19.175Z
Reserved: 2026-06-24T01:47:55.284Z
Link: CVE-2026-57162
Updated: 2026-09-04T17:26:12.085Z
Status : Received
Published: 2026-09-04T18:17:54.360
Modified: 2026-09-04T18:17:54.360
Link: CVE-2026-57162
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OpenCVE Enrichment
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