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Fencer Intel
medium 4.4

CVE-2015-7509 json

fs/ext4/namei.c in the Linux kernel before 3.7 allows physically proximate attackers to cause a denial of service (system crash) via a craf…

published 10y ago modified 4mo ago also EUVD-2015-7430

cvss
4.4
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 35%
public exploits
0
none known

Summary

fs/ext4/namei.c in the Linux kernel before 3.7 allows physically proximate attackers to cause a denial of service (system crash) via a crafted no-journal filesystem, a related issue to CVE-2013-2015.

Patch / fix

  • linux Debian 14, Debian 13, Debian 12 3.8-1~experimental.1

debian advisories DEBIAN-CVE-2015-7509

  • kernel RHEL 6 2.6.32-642.el6
  • perf RHEL 6 2.6.32-642.el6
  • python-perf RHEL 6 2.6.32-642.el6
  • kernel-kdump RHEL 6 2.6.32-642.el6
  • kernel-firmware RHEL 6 2.6.32-642.el6
  • kernel-bootwrapper RHEL 6 2.6.32-642.el6
  • kernel-abi-whitelists RHEL 6 2.6.32-642.el6
  • kernel-debuginfo-common-i686 RHEL 6 2.6.32-642.el6

red hat advisories RHSA-2016:0855

  • kernel-ec2 SLES 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.79.1
  • kernel-xen SLES 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.79.1
  • kernel-syms SLES 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.79.1
  • kernel-trace SLES 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.79.1
  • kernel-bigsmp SLES 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.79.1
  • kernel-source SLES 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.79.1
  • kernel-default SLES 11 SP3-LTSS, OpenStack Cloud 5, Manager Proxy 2.1 +1 more 3.0.101-0.47.79.1
  • kernel-rt SLE Real Time 11 SP4 3.0.101.rt130-48.1

suse advisories SUSE-SU-2016:2074-1SUSE-SU-2016:1203-1SUSE-SU-2015:2350-1SUSE-SU-2015:2339-1

Is CVE-2015-7509 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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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-2015-7509 updated cvss 6.0

kernel: Mounting ext2 fs e2fsprogs/tests/f_orphan as ext4 crashes system

  • Red Hat Enterprise Linux 5 kernel
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux Desktop (v. 6) perf 2.6.32-642.el6, kernel 2.6.32-642.el6, kernel-firmware 2.6.32-642.el6, kernel-abi-whitelists 2.6.32-642.el6, kernel-debuginfo-common-i686 2.6.32-642.el6, kernel-debuginfo-common-x86_64 2.6.32-642.el6 Red Hat Enterprise Linux Desktop Optional (v. 6) python-perf 2.6.32-642.el6, kernel-debuginfo-common-i686 2.6.32-642.el6, kernel-debuginfo-common-x86_64 2.6.32-642.el6 Red Hat Enterprise Linux HPC Node (v. 6) perf 2.6.32-642.el6, kernel 2.6.32-642.el6, kernel-firmware 2.6.32-642.el6, kernel-abi-whitelists 2.6.32-642.el6, kernel-debuginfo-common-i686 2.6.32-642.el6, kernel-debuginfo-common-x86_64 2.6.32-642.el6 Red Hat Enterprise Linux HPC Node Optional (v. 6) python-perf 2.6.32-642.el6, kernel-debuginfo-common-x86_64 2.6.32-642.el6 Red Hat Enterprise Linux Server (v. 6) perf 2.6.32-642.el6, kernel 2.6.32-642.el6, kernel-kdump 2.6.32-642.el6, kernel-firmware 2.6.32-642.el6, kernel-bootwrapper 2.6.32-642.el6, kernel-abi-whitelists 2.6.32-642.el6, +4 more Red Hat Enterprise Linux Server Optional (v. 6) python-perf 2.6.32-642.el6, kernel-debuginfo-common-i686 2.6.32-642.el6, kernel-debuginfo-common-ppc64 2.6.32-642.el6, kernel-debuginfo-common-s390x 2.6.32-642.el6, kernel-debuginfo-common-x86_64 2.6.32-642.el6
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 6) perf 2.6.32-642.el6, kernel 2.6.32-642.el6, kernel-firmware 2.6.32-642.el6, kernel-abi-whitelists 2.6.32-642.el6, kernel-debuginfo-common-i686 2.6.32-642.el6, kernel-debuginfo-common-x86_64 2.6.32-642.el6 Red Hat Enterprise Linux Workstation Optional (v. 6) python-perf 2.6.32-642.el6, kernel-debuginfo-common-i686 2.6.32-642.el6, kernel-debuginfo-common-x86_64 2.6.32-642.el6
    fixed: vendor fix RHSA-2016:0855
  • Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 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

0.41% chance of exploitation in the next 30 days, higher than 35% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 4.4 CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.9 AV:L/AC:L/Au:N/C:N/I:N/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation
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.