What’s Vulnerable › Vulnerabilities

CVE-2011-1080

• Severity: low (CVSS 2.1 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2012-06-21 · updated 2026-06-16
• Weakness: CWE-20

Description

The do_replace function in net/bridge/netfilter/ebtables.c in the Linux kernel before 2.6.39 does not ensure that a certain name field ends with a '\0' character, which allows local users to obtain potentially sensitive information from kernel stack memory by leveraging the CAP_NET_ADMIN capability to replace a table, and then reading a modprobe command line.

Affected products

• Linux kernel: through 2.6.38.8; 2.6.38, 2.6.38-rc1, 2.6.38-rc2, 2.6.38-rc3, 2.6.38-rc4, 2.6.38-rc5 (+10)

References

• http://downloads.avaya.com/css/P8/documents/100145416
• http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d846f71195d57b0bbb143382647c2c6638b04c5a
• http://rhn.redhat.com/errata/RHSA-2011-0833.html
• http://www.openwall.com/lists/oss-security/2011/03/01/10
• https://bugzilla.redhat.com/show_bug.cgi?id=681262
• https://github.com/torvalds/linux/commit/d846f71195d57b0bbb143382647c2c6638b04c5a
• http://downloads.avaya.com/css/P8/documents/100145416
• http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=d846f71195d57b0bbb143382647c2c6638b04c5a
• http://rhn.redhat.com/errata/RHSA-2011-0833.html
• http://www.openwall.com/lists/oss-security/2011/03/01/10

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