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Fencer Intel
medium 4.7

CVE-2013-2015 json

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-journ…

published 2013-04-29 13 y ago modified 2026-06-16 4 mo ago also EUVD-2013-2004

cvss
4.7
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 32%
public exploits
0
none known

Summary

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.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 3.8-1

debian advisories DEBIAN-CVE-2013-2015

  • kernel-ec2 SLES 11 SP2-LTSS 3.0.101-0.7.40.1
  • kernel-pae SLES 11 SP2-LTSS 3.0.101-0.7.40.1
  • kernel-xen SLES 11 SP2-LTSS 3.0.101-0.7.40.1
  • kernel-syms SLES 11 SP2-LTSS 3.0.101-0.7.40.1
  • kernel-trace SLES 11 SP2-LTSS 3.0.101-0.7.40.1
  • kernel-source SLES 11 SP2-LTSS 3.0.101-0.7.40.1
  • kernel-default SLES 11 SP2-LTSS 3.0.101-0.7.40.1

suse advisories SUSE-SU-2016:2074-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2013-2015 updated cvss 4.7

Kernel: ext4: hang when mounting non-journal filesystems with orphan list

  • Red Hat Enterprise Linux 5 kernel Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more Red Hat Enterprise MRG 2 kernel-rt, mrg-rt-release, kernel-rt-trace, kernel-rt-vanilla, kernel-rt-firmware
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.38% chance of exploitation in the next 30 days, higher than 32% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.7 AV:L/AC:M/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-399 Resource Management Errors
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.