CVE-2013-2015

Severity: medium (CVSS 4.7 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: 2013-04-29 · updated 2026-06-16
Weakness: CWE-399

Description

The ext4_orphan_del function in fs/ext4/namei.c in the Linux kernel before 3.7.3 does not properly handle orphan-list entries for non-journal filesystems, which allows physically proximate attackers to cause a denial of service (system hang) via a crafted filesystem on removable media, as demonstrated by the e2fsprogs tests/f_orphan_extents_inode/image.gz test.

Affected products

Linux kernel: through 3.7.2; 3.0-rc1, 3.0-rc2, 3.0-rc3, 3.0-rc4, 3.0-rc5, 3.0-rc6 (+198)
Red Hat Enterprise Linux: 5, 6.0
RedHat Enterprise Mrg: 2.0

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0e9a9a1ad619e7e987815d20262d36a2f95717ca
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.3
http://www.openwall.com/lists/oss-security/2013/04/26/16
https://bugzilla.redhat.com/show_bug.cgi?id=957123
https://github.com/torvalds/linux/commit/0e9a9a1ad619e7e987815d20262d36a2f95717ca
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0e9a9a1ad619e7e987815d20262d36a2f95717ca
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.7.3
http://www.openwall.com/lists/oss-security/2013/04/26/16
https://bugzilla.redhat.com/show_bug.cgi?id=957123
https://github.com/torvalds/linux/commit/0e9a9a1ad619e7e987815d20262d36a2f95717ca

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