| Name | CVE-2011-0539 |
| Description | The key_certify function in usr.bin/ssh/key.c in OpenSSH 5.6 and 5.7, when generating legacy certificates using the -t command-line option in ssh-keygen, does not initialize the nonce field, which might allow remote attackers to obtain sensitive stack memory contents or make it easier to conduct hash collision attacks. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| openssh (PTS) | jessie, jessie (lts) | 1:6.7p1-5+deb8u10 | fixed |
| stretch (security) | 1:7.4p1-10+deb9u6 | fixed | |
| stretch (lts), stretch | 1:7.4p1-10+deb9u9 | fixed | |
| buster (security), buster, buster (lts) | 1:7.9p1-10+deb10u4 | fixed | |
| bullseye (security), bullseye | 1:8.4p1-5+deb11u3 | fixed | |
| bookworm (security), bookworm | 1:9.2p1-2+deb12u3 | fixed | |
| sid, trixie | 1:9.9p1-3 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| openssh | source | lenny | (not affected) | |||
| openssh | source | squeeze | (not affected) | |||
| openssh | source | (unstable) | 1:5.8p1-2 |
[squeeze] - openssh <not-affected> (Only affects OpenSSH 5.6 and 5.7)
[lenny] - openssh <not-affected> (Only affects OpenSSH 5.6 and 5.7)