CVE-2011-1093

Priority
Medium
Description
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.
Ubuntu-Description
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.
References
Bugs
Notes
kees> May have been introduced as late as 0c10c5d.
kees> Was possibly fixed briefly by ddab055, but re-introduced by 410e27a.
Package
Upstream:released (2.6.38~rc8)
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.32-315.28)
Ubuntu 11.04 (Natty Narwhal):DNE
Ubuntu 11.10 (Oneiric Ocelot):DNE
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Package
Upstream:released (2.6.38~rc8)
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):not-affected
Ubuntu 11.04 (Natty Narwhal):DNE
Ubuntu 11.10 (Oneiric Ocelot):DNE
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Package
Upstream:released (2.6.38~rc8)
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.38-7.35~lucid1)
Ubuntu 11.04 (Natty Narwhal):DNE
Ubuntu 11.10 (Oneiric Ocelot):DNE
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Package
Upstream:released (2.6.38~rc8)
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.32-216.33)
Ubuntu 11.04 (Natty Narwhal):DNE
Ubuntu 11.10 (Oneiric Ocelot):DNE
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Package
Upstream:released (2.6.38~rc8)
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.35-30.54~lucid1)
Ubuntu 11.04 (Natty Narwhal):DNE
Ubuntu 11.10 (Oneiric Ocelot):DNE
Ubuntu 12.04 LTS (Precise Pangolin):DNE
Package
Source: linux (LP Ubuntu Debian)
Upstream:released (2.6.38~rc8)
Ubuntu 8.04 LTS (Hardy Heron):released (2.6.24-29.93)
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.32-31.60)
Ubuntu 11.04 (Natty Narwhal):released (2.6.38-6.33)
Ubuntu 11.10 (Oneiric Ocelot):not-affected (2.6.39-0.0)
Ubuntu 12.04 LTS (Precise Pangolin):not-affected (2.6.39-0.0)
Patches:
Introduced by 7c657876b63cb1d8a2ec06f8fc6c37bb8412e66cFixed by 720dc34bbbe9493c7bd48b2243058b4e447a929d
Package
Upstream:released (2.6.38~rc8)
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):DNE
Ubuntu 11.04 (Natty Narwhal):released (2.6.38-1205.6)
Ubuntu 11.10 (Oneiric Ocelot):not-affected (2.6.38-1309.13)
Ubuntu 12.04 LTS (Precise Pangolin):not-affected (2.6.38-1309.13)
Package
Upstream:released (2.6.38~rc8)
Ubuntu 8.04 LTS (Hardy Heron):DNE
Ubuntu 10.04 LTS (Lucid Lynx):released (2.6.31-610.27)
Ubuntu 11.04 (Natty Narwhal):DNE
Ubuntu 11.10 (Oneiric Ocelot):DNE
Ubuntu 12.04 LTS (Precise Pangolin):DNE
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Updated: 2012-06-01 15:21:55 UTC (commit 5347)