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Fencer Intel
medium 4.6

CVE-2013-1819 json

The _xfs_buf_find function in fs/xfs/xfs_buf.c in the Linux kernel before 3.7.6 does not validate block numbers, which allows local users t…

published 13y ago modified 4mo ago also EUVD-2013-1838

cvss
4.6
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 38%
public exploits
0
none known

Summary

The _xfs_buf_find function in fs/xfs/xfs_buf.c in the Linux kernel before 3.7.6 does not validate block numbers, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by leveraging the ability to mount an XFS filesystem containing a metadata inode with an invalid extent map.

Patch / fix

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

debian advisories DEBIAN-CVE-2013-1819

  • kernel-rt enterprise mrg 2 3.6.11.2-rt33.39.el6rt
  • mrg-rt-release enterprise mrg 2 3.6.11.2-rt33.39.el6rt
  • kernel-rt-trace enterprise mrg 2 3.6.11.2-rt33.39.el6rt
  • kernel-rt-vanilla enterprise mrg 2 3.6.11.2-rt33.39.el6rt
  • kernel-rt-firmware enterprise mrg 2 3.6.11.2-rt33.39.el6rt
  • kernel-rt-debuginfo-common-x86_64 enterprise mrg 2 3.6.11.2-rt33.39.el6rt

red hat advisories RHSA-2013:0829

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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-2013-1819 updated cvss 3.8

kernel: xfs: _xfs_buf_find oops on blocks beyond the filesystem end

  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    affected: no fix planned “Will not fix”
  • Red Hat MRG Realtime for RHEL 6 Server v.2 kernel-rt 3.6.11.2-rt33.39.el6rt, mrg-rt-release 3.6.11.2-rt33.39.el6rt, kernel-rt-trace 3.6.11.2-rt33.39.el6rt, kernel-rt-vanilla 3.6.11.2-rt33.39.el6rt, kernel-rt-firmware 3.6.11.2-rt33.39.el6rt, kernel-rt-debuginfo-common-x86_64 3.6.11.2-rt33.39.el6rt
    fixed: vendor fix RHSA-2013:0829
  • Red Hat Enterprise Linux 5 kernel
    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

0.44% chance of exploitation in the next 30 days, higher than 38% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

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.