CVE-2012-3400

Severity: high (CVSS 7.6 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-10-03 · updated 2026-06-16
Weakness: CWE-787

Description

Heap-based buffer overflow in the udf_load_logicalvol function in fs/udf/super.c in the Linux kernel before 3.4.5 allows remote attackers to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted UDF filesystem.

Affected products

Canonical Ubuntu Linux: 10.04, 11.04, 12.04
Linux kernel: before 3.0.37; from 3.1 before 3.2.23; from 3.4 before 3.4.5 — fixed in 3.0.37, 3.2.23, 3.4.5

How to fix

Upgrade to a fixed version: Linux kernel 3.0.37, 3.2.23, 3.4.5. Check the vendor advisory for mitigations.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1df2ae31c724e57be9d7ac00d78db8a5dabdd050
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=adee11b2085bee90bd8f4f52123ffb07882d6256
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10691
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
http://rhn.redhat.com/errata/RHSA-2013-0594.html
http://secunia.com/advisories/50506
http://ubuntu.com/usn/usn-1529-1
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.4.5
http://www.openwall.com/lists/oss-security/2012/07/10/2
http://www.ubuntu.com/usn/USN-1555-1
http://www.ubuntu.com/usn/USN-1556-1
http://www.ubuntu.com/usn/USN-1557-1

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