Vulnerability Description
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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 3.1 |
| Redhat | Enterprise Linux | 4.0 |
| F5 | Arx | >= 6.0.0, <= 6.4.0 |
| F5 | Big-Ip Access Policy Manager | >= 10.1.0, <= 10.2.4 |
| F5 | Big-Ip Analytics | >= 11.0.0, <= 11.1.0 |
| F5 | Big-Ip Application Security Manager | >= 10.0.0, <= 10.2.4 |
| F5 | Big-Ip Edge Gateway | >= 10.1.0, <= 10.2.4 |
| F5 | Big-Ip Global Traffic Manager | >= 10.0.0, <= 10.2.4 |
| F5 | Big-Ip Link Controller | >= 10.0.0, <= 10.2.4 |
| F5 | Big-Ip Local Traffic Manager | >= 10.0.0, <= 10.2.4 |
| F5 | Big-Ip Protocol Security Module | >= 10.0.0, <= 10.2.4 |
| F5 | Big-Ip Wan Optimization Manager | >= 10.0.0, <= 10.2.4 |
| F5 | Big-Ip Webaccelerator | >= 10.0.0, <= 10.2.4 |
| F5 | Enterprise Manager | >= 2.1.0, <= 2.3.0 |
| F5 | Firepass | >= 6.0.0, <= 6.1.0 |
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://marc.info/?l=bugtraq&m=139447903326211&w=2Mailing ListThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1Mailing ListPatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2011/08/23/2Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=732658Issue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/6e5714eaf77d79ae1c8b47e3e040ff5411b717ePatchThird Party Advisory
- https://github.com/torvalds/linux/commit/bc0b96b54a21246e377122d54569eef71cec535PatchThird Party Advisory
- https://support.f5.com/csp/article/K15301?utm_source=f5support&%3Butm_medium=
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=
- http://marc.info/?l=bugtraq&m=139447903326211&w=2Mailing ListThird Party Advisory
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1Mailing ListPatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2011/08/23/2Mailing ListPatchThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=732658Issue TrackingPatchThird Party Advisory
FAQ
What is CVE-2011-3188?
CVE-2011-3188 is a vulnerability with a CVSS score of 9.1 (CRITICAL). 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 ...
How severe is CVE-2011-3188?
CVE-2011-3188 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2011-3188?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux, F5 Arx, F5 Big-Ip Access Policy Manager, F5 Big-Ip Analytics.