Name | CVE-2019-3856 |
Description | An integer overflow flaw, which could lead to an out of bounds write, was discovered in libssh2 before 1.8.1 in the way keyboard prompt requests are parsed. A remote attacker who compromises a SSH server may be able to execute code on the client system when a user connects to the server. |
Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
References | DLA-1730-1, DSA-4431-1, ELA-99-1 |
Debian Bugs | 924965 |
The table below lists information on source packages.
Source Package | Release | Version | Status |
---|---|---|---|
libssh2 (PTS) | jessie, jessie (lts) | 1.4.3-4.1+deb8u7 | fixed |
stretch (security) | 1.7.0-1+deb9u2 | fixed | |
stretch (lts), stretch | 1.7.0-1+deb9u3 | fixed | |
buster (security), buster, buster (lts) | 1.8.0-2.1+deb10u1 | fixed | |
bullseye | 1.9.0-2+deb11u1 | fixed | |
bookworm | 1.10.0-3 | fixed | |
sid, trixie | 1.11.1-1 | fixed |
The information below is based on the following data on fixed versions.
Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
---|---|---|---|---|---|---|
libssh2 | source | wheezy | 1.4.2-1.1+deb7u3 | ELA-99-1 | ||
libssh2 | source | jessie | 1.4.3-4.1+deb8u2 | DLA-1730-1 | ||
libssh2 | source | stretch | 1.7.0-1+deb9u1 | DSA-4431-1 | ||
libssh2 | source | (unstable) | 1.8.0-2.1 | 924965 |
https://www.libssh2.org/CVE-2019-3856.html
Patch: https://libssh2.org/1.8.0-CVE/CVE-2019-3856.patch
https://github.com/libssh2/libssh2/pull/315