Home/CVE/The (1) IPv4 and (2) IPv6 implementations in the Linux kernel before 3.1 use a modified MD4 algorithm to generate sequen
CVE

CVE-2011-3188

The (1) IPv4 and (2) IPv6 implementations in the Linux kernel before 3.1 use a modified MD4 algorithm to generate sequen

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.

CRITICAL · CVSS 9.1 EPSS 0.04324
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

26
linux kernel< 3.1
redhat enterprise linuxall versions
f5 arx>= 6.0.0 and <= 6.4.0
f5 big-ip access policy manager>= 10.1.0 and <= 10.2.4
f5 big-ip access policy manager>= 11.0.0 and <= 11.1.0
f5 big-ip analytics>= 11.0.0 and <= 11.1.0
f5 big-ip application security manager>= 10.0.0 and <= 10.2.4
f5 big-ip application security manager>= 11.0.0 and <= 11.1.0
▣

Scoring & Timeline

9.1
CRITICAL · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD24 May 2012 · 11:55 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
⚑

Vendor Advisories

17
suse-csafSUSE-SU-2015:0652-1
rhsaRHSA-2011:1465Moderate
rhsaRHSA-2012:0010Moderate
usnUSN-1256-1
usnUSN-1253-1
🔗

References & Sources

9
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git
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
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