Description
The SSHParseBanner function in SSH parser (app-layer-ssh.c) in Suricata before 2.0.4 allows remote attackers to bypass SSH rules, cause a denial of service (crash), or possibly have unspecified other impact via a crafted banner, which triggers a large memory allocation or an out-of-bounds write.
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 | suricata | 2.0.4-1 | — |
| Debian 13 | suricata | 2.0.4-1 | — |
References
- 70083 vdb-entry
- http://packetstormsecurity.com/files/128382/Suricata-2.0.3-Out-Of-Bounds-Access.html
- FEDORA-2014-11462 vendor-advisory
- FEDORA-2014-11302 vendor-advisory
- suricata-cve20146603-dos(96157) vdb-entry
- 20140923 CVE-2014-6603 suricata 2.0.3 Out-of-bounds access in SSH parser mailing-list
- 20140923 CVE-2014-6603 suricata 2.0.3 Out-of-bounds access in SSH parser mailing-list