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Vulnerability record · CVE-2011-2699 · published 24 May 2012

CVE-2011-2699: Linux kernel vulnerability

Linux · Linux Kernel

The IPv6 implementation in the Linux kernel before 3.1 does not generate Fragment Identification values separately for each destination, which makes it easier for remote attackers to cause a denial of service (disrupted networking) by predicting these values and sending crafted packets.

7.5 CVSS 3.1 High EPSS 5.6% · top 7.3%
7.5CVSS 3.1 base score, v2 7.8
5.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
14References
16 Jun 2026Last modified by NVD

Description

The IPv6 implementation in the Linux kernel before 3.1 does not generate Fragment Identification values separately for each destination, which makes it easier for remote attackers to cause a denial of service (disrupted networking) by predicting these values and sending crafted packets.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=87c48fa3b4630905f98268dde838ee43626a060c
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1 Mailing ListPatchVendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150 Broken Link
http://www.openwall.com/lists/oss-security/2011/07/20/5 Mailing ListThird Party Advisory
http://www.securitytracker.com/id?1027274 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=723429 Issue TrackingPatchThird Party Advisory
https://github.com/torvalds/linux/commit/87c48fa3b4630905f98268dde838ee43626a060c PatchThird Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=87c48fa3b4630905f98268dde838ee43626a060c
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1 Mailing ListPatchVendor Advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2013:150 Broken Link
http://www.openwall.com/lists/oss-security/2011/07/20/5 Mailing ListThird Party Advisory
http://www.securitytracker.com/id?1027274 Third Party AdvisoryVDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=723429 Issue TrackingPatchThird Party Advisory
https://github.com/torvalds/linux/commit/87c48fa3b4630905f98268dde838ee43626a060c PatchThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2011-2699), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.