CVE-2011-1093
Published: 18 July 2011
The dccp_rcv_state_process function in net/dccp/input.c in the Datagram Congestion Control Protocol (DCCP) implementation in the Linux kernel before 2.6.38 does not properly handle packets for a CLOSED endpoint, which allows remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by sending a DCCP-Close packet followed by a DCCP-Reset packet.
From the Ubuntu security team
Johan Hovold discovered that the DCCP network stack did not correctly handle certain packet combinations. A remote attacker could send specially crafted network traffic that would crash the system, leading to a denial of service.
Priority
Medium
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.38~rc8)
|
|
Patches: Introduced by 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66c Fixed by 720dc34bbbe9493c7bd48b2243058b4e447a929d |
||
|
linux-ec2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.38~rc8)
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.38~rc8)
|
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.38~rc8)
|
|
linux-lts-backport-natty Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.38~rc8)
|
|
linux-lts-backport-oneiric Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.38~rc8)
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.38~rc8)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
Upstream |
Released
(2.6.38~rc8)
|
Notes
| Author | Note |
|---|---|
| kees | May have been introduced as late as 0c10c5d. Was possibly fixed briefly by ddab055, but re-introduced by 410e27a. |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1093
- https://ubuntu.com/security/notices/USN-1167-1
- https://ubuntu.com/security/notices/USN-1160-1
- https://ubuntu.com/security/notices/USN-1141-1
- https://ubuntu.com/security/notices/USN-1093-1
- https://ubuntu.com/security/notices/USN-1187-1
- https://ubuntu.com/security/notices/USN-1189-1
- https://ubuntu.com/security/notices/USN-1202-1
- https://ubuntu.com/security/notices/USN-1204-1
- https://ubuntu.com/security/notices/USN-1256-1
- NVD
- Launchpad
- Debian