What’s Vulnerable › Vulnerabilities

CVE-2010-3861

• 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: 2010-12-10 · updated 2026-06-16
• Weakness: CWE-200

Description

The ethtool_get_rxnfc function in net/core/ethtool.c in the Linux kernel before 2.6.36 does not initialize a certain block of heap memory, which allows local users to obtain potentially sensitive information via an ETHTOOL_GRXCLSRLALL ethtool command with a large info.rule_cnt value, a different vulnerability than CVE-2010-2478.

Affected products

• Canonical Ubuntu Linux: 9.10, 10.04, 10.10
• Linux kernel: before 2.6.36 — fixed in 2.6.36
• Opensuse: 11.2, 11.3
• SUSE Linux Enterprise Server 15 SP1: 11-sp1
• SUSE Linux Enterprise Real Time Extension: 11-sp1
• SUSE Linux Enterprise Server: 11-sp1

How to fix

Upgrade to a fixed version: Linux kernel 2.6.36. Check the vendor advisory for mitigations.

References

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ae6df5f96a51818d6376da5307d773baeece4014
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html
• http://openwall.com/lists/oss-security/2010/10/25/4
• http://openwall.com/lists/oss-security/2010/10/26/1
• http://secunia.com/advisories/42758
• http://secunia.com/advisories/42778
• http://secunia.com/advisories/42801
• http://secunia.com/advisories/42890
• http://secunia.com/advisories/42932

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