What’s Vulnerable › Vulnerabilities

CVE-2010-3437

• Severity: medium (CVSS 6.6 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.4% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2010-10-04 · updated 2026-06-16
• Weakness: CWE-476

Description

Integer signedness error in the pkt_find_dev_from_minor function in drivers/block/pktcdvd.c in the Linux kernel before 2.6.36-rc6 allows local users to obtain sensitive information from kernel memory or cause a denial of service (invalid pointer dereference and system crash) via a crafted index value in a PKT_CTRL_CMD_STATUS ioctl call.

Affected products

• Canonical Ubuntu Linux: 6.06, 8.04, 9.04, 9.10, 10.04, 10.10
• Debian Linux: 5.0
• Linux kernel: before 2.6.36; 2.6.36, 2.6.36-rc1, 2.6.36-rc2, 2.6.36-rc3, 2.6.36-rc4, 2.6.36-rc5 — fixed in 2.6.36
• Opensuse: 11.2, 11.3
• SUSE Linux Enterprise Server 15 SP1: 10-sp3, 11-sp1
• SUSE Linux Enterprise Real Time Extension: 11-sp1
• SUSE Linux Enterprise Server: 9, 10-sp3, 11-sp1
• SUSE Linux Enterprise Software Development Kit: 10-sp3

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=252a52aa4fa22a668f019e55b3aac3ff71ec1c29
• http://jon.oberheide.org/files/cve-2010-3437.c
• http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.html
• 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://secunia.com/advisories/42778
• http://secunia.com/advisories/42801
• http://secunia.com/advisories/42932
• http://www.debian.org/security/2010/dsa-2126
• http://www.exploit-db.com/exploits/15150/

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