CVE-2020-22218

NameCVE-2020-22218
DescriptionAn issue was discovered in function _libssh2_packet_add in libssh2 1.10.0 allows attackers to access out of bounds memory.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3559-1, ELA-956-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
libssh2 (PTS)jessie, jessie (lts)1.4.3-4.1+deb8u7fixed
stretch (security)1.7.0-1+deb9u2vulnerable
stretch (lts), stretch1.7.0-1+deb9u3fixed
buster (security), buster, buster (lts)1.8.0-2.1+deb10u1fixed
bullseye1.9.0-2+deb11u1fixed
bookworm1.10.0-3fixed
sid, trixie1.11.0-7fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
libssh2sourcejessie1.4.3-4.1+deb8u7ELA-956-1
libssh2sourcestretch1.7.0-1+deb9u3ELA-956-1
libssh2sourcebuster1.8.0-2.1+deb10u1DLA-3559-1
libssh2sourcebullseye1.9.0-2+deb11u1
libssh2source(unstable)1.10.0-2

Notes

https://github.com/libssh2/libssh2/pull/476
https://github.com/libssh2/libssh2/commit/642eec48ff3adfdb7a9e562b6d7fc865d1733f45 (libssh2-1.10.0)

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