What’s Vulnerable › Vulnerabilities

CVE-2010-3876

• Severity: low (CVSS 1.9 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: 2011-01-03 · updated 2026-06-16
• Weakness: CWE-909

Description

net/packet/af_packet.c in the Linux kernel before 2.6.37-rc2 does not properly initialize certain structure members, which allows local users to obtain potentially sensitive information from kernel stack memory by leveraging the CAP_NET_RAW capability to read copies of the applicable structures.

Affected products

• Debian Linux: 5.0
• Linux kernel: before 2.6.37; 2.6.37, 2.6.37-rc1 — fixed in 2.6.37
• Opensuse: 11.2, 11.3
• SUSE Linux Enterprise Server 15 SP1: 10-sp3
• SUSE Linux Enterprise Real Time Extension: 11-sp1
• SUSE Linux Enterprise Server: 9, 10-sp3
• SUSE Linux Enterprise Software Development Kit: 10-sp3

How to fix

Upgrade to a fixed version: Linux kernel 2.6.37. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=67286640f638f5ad41a946b9a3dc75327950248f
• http://marc.info/?l=linux-netdev&m=128854507220908&w=2
• http://openwall.com/lists/oss-security/2010/11/02/10
• http://openwall.com/lists/oss-security/2010/11/02/12
• http://openwall.com/lists/oss-security/2010/11/02/7
• http://openwall.com/lists/oss-security/2010/11/02/9
• http://openwall.com/lists/oss-security/2010/11/04/5
• http://secunia.com/advisories/42789
• http://secunia.com/advisories/42890
• http://secunia.com/advisories/42963
• http://secunia.com/advisories/46397
• http://www.debian.org/security/2010/dsa-2126

Get alerted when CVE-2010-3876 or the next vulnerability affects your stack