Description
packet.c in ssh in OpenSSH allows remote attackers to cause a denial of service (crash) by sending an invalid protocol sequence with USERAUTH_SUCCESS before NEWKEYS, which causes newkeys[mode] to be NULL.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | openssh | 1:5.1p1-5 | — |
| Debian 13 | openssh | 1:5.1p1-5 | — |
| Debian 12 | openssh | 1:5.1p1-5 | — |
References
- 23038 third-party-advisory
- 20061005 rPSA-2006-0185-1 gnome-ssh-askpass openssh openssh-client openssh-server mailing-list
- SUSE-SR:2006:024 vendor-advisory
- SUSE-SA:2006:062 vendor-advisory
- https://issues.rpath.com/browse/RPL-681
- 22298 third-party-advisory
- http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/packet.c.diff?r1=1.144&r2=1.145&f=h
- 22495 third-party-advisory
- 20060927 rPSA-2006-0174-1 gnome-ssh-askpass openssh openssh-client openssh-server mailing-list
- OpenPKG-SA-2006.022 vendor-advisory
- 22245 third-party-advisory
- https://issues.rpath.com/browse/RPL-661
- http://bugs.gentoo.org/show_bug.cgi?id=148228
- MDKSA-2006:179 vendor-advisory