CVE-2010-3861

CVE-2010-3861 is a low-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

• Severity: Low (CVSS 2.0 base score 2.1)
• EPSS exploit prediction: 0% (33rd percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-200
• Affected product: Linux Linux Kernel
• Published: 2010-12-10
• Last modified: 2026-06-16

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.

Frequently asked questions

What is CVE-2010-3861?

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.

How severe is CVE-2010-3861?

CVE-2010-3861 has a CVSS 2.0 base score of 2.1, rated low severity.

Is CVE-2010-3861 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-3861?

CVE-2010-3861 primarily affects Linux Linux Kernel. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-3861?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2010-3861 published?

CVE-2010-3861 was published on 2010-12-10 and last updated on 2026-06-16.

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
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36
• http://www.redhat.com/support/errata/RHSA-2010-0958.html
• http://www.redhat.com/support/errata/RHSA-2011-0007.html
• http://www.securityfocus.com/bid/44427
• http://www.ubuntu.com/usn/USN-1041-1
• http://www.vupen.com/english/advisories/2011/0012
• http://www.vupen.com/english/advisories/2011/0070
• http://www.vupen.com/english/advisories/2011/0124
• http://www.vupen.com/english/advisories/2011/0298
• https://bugzilla.redhat.com/show_bug.cgi?id=646725

Affected products (9)

• cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
• cpe:2.3:o:opensuse:opensuse:11.2:*:*:*:*:*:*:*
• cpe:2.3:o:opensuse:opensuse:11.3:*:*:*:*:*:*:*
• cpe:2.3:o:suse:linux_enterprise_desktop:11:sp1:*:*:*:*:*:*
• cpe:2.3:o:suse:linux_enterprise_real_time_extension:11:sp1:*:*:*:*:*:*
• cpe:2.3:o:suse:linux_enterprise_server:11:sp1:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*
• cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:*

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