CVE-2011-3188
Published: 25 August 2011
The (1) IPv4 and (2) IPv6 implementations in the Linux kernel before 3.1 use a modified MD4 algorithm to generate sequence numbers and Fragment Identification values, which makes it easier for remote attackers to cause a denial of service (disrupted networking) or hijack network sessions by predicting these values and sending crafted packets.
From the Ubuntu security team
Dan Kaminsky discovered that the kernel incorrectly handled random sequence number generation. An attacker could use this flaw to possibly predict sequence numbers and inject packets.
Priority
Medium
CVSS 3 base score: 9.1
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
|
Patches: Upstream: http://git.kernel.org/linus/bc0b96b54a21246e377122d54569eef71cec535f Upstream: http://git.kernel.org/linus/6e5714eaf77d79ae1c8b47e3e040ff5411b717ec |
||
|
linux-ec2 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
|
linux-lts-backport-maverick Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
|
linux-lts-backport-natty Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
|
linux-lts-backport-oneiric Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
Upstream |
Released
(3.1~rc1)
|
Notes
| Author | Note |
|---|---|
| jdstrand | http://git.kernel.org/linus/bc0b96b54a21246e377122d54569eef71cec535f http://git.kernel.org/linus/6e5714eaf77d79ae1c8b47e3e040ff5411b717ec |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-3188
- http://www.openwall.com/lists/oss-security/2011/08/23/2
- http://lwn.net/Articles/455135/
- https://ubuntu.com/security/notices/USN-1220-1
- https://ubuntu.com/security/notices/USN-1228-1
- https://ubuntu.com/security/notices/USN-1236-1
- https://ubuntu.com/security/notices/USN-1239-1
- https://ubuntu.com/security/notices/USN-1242-1
- https://ubuntu.com/security/notices/USN-1246-1
- https://ubuntu.com/security/notices/USN-1245-1
- https://ubuntu.com/security/notices/USN-1241-1
- https://ubuntu.com/security/notices/USN-1243-1
- https://ubuntu.com/security/notices/USN-1240-1
- https://ubuntu.com/security/notices/USN-1253-1
- https://ubuntu.com/security/notices/USN-1256-1
- NVD
- Launchpad
- Debian