CyberRota Analysis
AI-GeneratedA stack buffer overflow vulnerability exists in the SRTP/SDES media transport of the PJSIP library, specifically when processing a=crypto attributes during SDP offer/answer. This flaw allows a remote attacker to exploit the vulnerability by sending an excessive number of a=crypto attributes, potentially leading to application crashes or control flow hijacking. Developers and organizations utilizing PJSIP with SRTP enabled should prioritize applying the patch to mitigate the risk of exploitation.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD 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.
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