pptpgre.c in PoPToP Point to Point Tunneling Server (pptpd) before 1.3.4 allows remote attackers to cause a denial of service (PPTP connection tear-down) via (1) GRE packets with out-of-order sequence numbers or (2) certain GRE packets that are processed using a wrong pointer and improperly dequeued.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Debian_linux | Debian | 4.0 (including) | 4.0 (including) |
| Pptpd | Ubuntu | dapper | * |
| Pptpd | Ubuntu | devel | * |
| Pptpd | Ubuntu | edgy | * |
| Pptpd | Ubuntu | feisty | * |
References
- http://secunia.com/advisories/25220
- http://secunia.com/advisories/25255
- http://secunia.com/advisories/26987
- http://security.gentoo.org/glsa/glsa-200705-18.xml
- http://sourceforge.net/project/shownotes.php?release_id=501476\u0026group_id=44827
- http://www.debian.org/security/2007/dsa-1288
- http://www.novell.com/linux/security/advisories/2007_10_sr.html
- http://www.novell.com/linux/security/advisories/2007_19_sr.html
- http://www.securityfocus.com/bid/23886
- http://www.securitytracker.com/id?1018064
- http://www.trustix.org/errata/2007/0017/
- http://www.ubuntu.com/usn/usn-459-1
- http://www.ubuntu.com/usn/usn-459-2
- http://www.vupen.com/english/advisories/2007/1743
- http://secunia.com/advisories/25220
- http://secunia.com/advisories/25255
- http://secunia.com/advisories/26987
- http://security.gentoo.org/glsa/glsa-200705-18.xml
- http://sourceforge.net/project/shownotes.php?release_id=501476\u0026group_id=44827
- http://www.debian.org/security/2007/dsa-1288
- http://www.novell.com/linux/security/advisories/2007_10_sr.html
- http://www.novell.com/linux/security/advisories/2007_19_sr.html
- http://www.securityfocus.com/bid/23886
- http://www.securitytracker.com/id?1018064
- http://www.trustix.org/errata/2007/0017/
- http://www.ubuntu.com/usn/usn-459-1
- http://www.ubuntu.com/usn/usn-459-2
- http://www.vupen.com/english/advisories/2007/1743