The buf_decompress function in packet.c in Dropbear SSH Server before 2013.59 allows remote attackers to cause a denial of service (memory consumption) via a compressed packet that has a large size when it is decompressed.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Dropbear_ssh | Dropbear_ssh_project | * | 2013.59 (excluding) |
| Dropbear | Ubuntu | artful | * |
| Dropbear | Ubuntu | lucid | * |
| Dropbear | Ubuntu | precise | * |
| Dropbear | Ubuntu | quantal | * |
| Dropbear | Ubuntu | raring | * |
| Dropbear | Ubuntu | saucy | * |
| Dropbear | Ubuntu | utopic | * |
| Dropbear | Ubuntu | vivid | * |
| Dropbear | Ubuntu | wily | * |
| Dropbear | Ubuntu | yakkety | * |
| Dropbear | Ubuntu | zesty | * |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2013-October/119300.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-October/119323.html
- http://lists.opensuse.org/opensuse-updates/2013-10/msg00061.html
- http://lists.opensuse.org/opensuse-updates/2013-11/msg00046.html
- http://secunia.com/advisories/55173
- http://www.openwall.com/lists/oss-security/2013/10/11/4
- http://www.securityfocus.com/bid/62958
- https://matt.ucc.asn.au/dropbear/CHANGES
- https://secure.ucc.asn.au/hg/dropbear/rev/0bf76f54de6f
- https://support.citrix.com/article/CTX216642
- http://lists.fedoraproject.org/pipermail/package-announce/2013-October/119300.html
- http://lists.fedoraproject.org/pipermail/package-announce/2013-October/119323.html
- http://lists.opensuse.org/opensuse-updates/2013-10/msg00061.html
- http://lists.opensuse.org/opensuse-updates/2013-11/msg00046.html
- http://secunia.com/advisories/55173
- http://www.openwall.com/lists/oss-security/2013/10/11/4
- http://www.securityfocus.com/bid/62958
- https://matt.ucc.asn.au/dropbear/CHANGES
- https://secure.ucc.asn.au/hg/dropbear/rev/0bf76f54de6f
- https://support.citrix.com/article/CTX216642