CVE-2020-35776

NameCVE-2020-35776
DescriptionA buffer overflow in res_pjsip_diversion.c in Sangoma Asterisk versions 13.38.1, 16.15.1, 17.9.1, and 18.1.1 allows remote attacker to crash Asterisk by deliberately misusing SIP 181 responses.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesELA-699-1
Debian Bugs983158

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
asterisk (PTS)jessie, jessie (lts)1:11.13.1~dfsg-2+deb8u8vulnerable
stretch (security)1:13.14.1~dfsg-2+deb9u6vulnerable
stretch (lts), stretch1:13.14.1~dfsg-2+deb9u9fixed
buster1:16.2.1~dfsg-1+deb10u2vulnerable
buster (security)1:16.28.0~dfsg-0+deb10u4fixed
bullseye1:16.28.0~dfsg-0+deb11u3fixed
bullseye (security)1:16.28.0~dfsg-0+deb11u4fixed
sid1:20.6.0~dfsg+~cs6.13.40431414-2fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
asterisksourcejessie(unfixed)end-of-life
asterisksourcestretch1:13.14.1~dfsg-2+deb9u7ELA-699-1
asterisksource(unstable)1:16.16.1~dfsg-1983158

Notes

[buster] - asterisk <postponed> (Minor issue)
[stretch] - asterisk <no-dsa> (Minor issue)
https://downloads.asterisk.org/pub/security/AST-2021-001.html
https://issues.asterisk.org/jira/browse/ASTERISK-29227

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