DescriptionA buffer overflow vulnerability exists in all versions of sngrep since v0.4.2, due to improper handling of 'Call-ID' and 'X-Call-ID' SIP headers. The functions sip_get_callid and sip_get_xcallid in sip.c use the strncpy function to copy header contents into fixed-size buffers without checking the data length. This flaw allows remote attackers to execute arbitrary code or cause a denial of service (DoS) through specially crafted SIP messages.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1068818

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
sngrep (PTS)buster1.4.6-1vulnerable
sid, trixie1.8.1-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[bookworm] - sngrep <no-dsa> (Minor issue)
[bullseye] - sngrep <no-dsa> (Minor issue)
[buster] - sngrep <postponed> (Minor issue) (v1.8.1)

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