| Name | CVE-2015-3146 |
| Description | The (1) SSH_MSG_NEWKEYS and (2) SSH_MSG_KEXDH_REPLY packet handlers in package_cb.c in libssh before 0.6.5 do not properly validate state, which allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted SSH packet. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 784404 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libssh (PTS) | jessie, jessie (lts) | 0.6.3-4+deb8u6 | fixed |
| stretch (security) | 0.7.3-2+deb9u3 | fixed |
| stretch (lts), stretch | 0.7.3-2+deb9u4 | fixed |
| buster (security), buster, buster (lts) | 0.8.7-1+deb10u2 | fixed |
| bullseye (security), bullseye | 0.9.8-0+deb11u1 | fixed |
| bookworm (security), bookworm | 0.10.6-0+deb12u1 | fixed |
| sid, trixie | 0.11.1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| libssh | source | squeeze | (not affected) | | | |
| libssh | source | wheezy | 0.5.4-1+deb7u3 | | | |
| libssh | source | jessie | 0.6.3-4+deb8u1 | | | |
| libssh | source | (unstable) | 0.6.3-4.2 | | | 784404 |
Notes
[squeeze] - libssh <not-affected> (Issue only present in versions > 0.5.1, squeeze has 0.4.5)
https://www.libssh.org/2015/04/30/libssh-0-6-5-security-and-bugfix-release/