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Fencer Intel
medium 6.9

CVE-2014-9710 json

The Btrfs implementation in the Linux kernel before 3.19 does not ensure that the visible xattr state is consistent with a requested replac…

published 2015-05-27 11 y ago modified 2026-06-17 4 mo ago also EUVD-2014-9517

cvss
6.9
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 20%
public exploits
0
none known

Summary

The Btrfs implementation in the Linux kernel before 3.19 does not ensure that the visible xattr state is consistent with a requested replacement, which allows local users to bypass intended ACL settings and gain privileges via standard filesystem operations (1) during an xattr-replacement time window, related to a race condition, or (2) after an xattr-replacement attempt that fails because the data does not fit.

Patch / fix

  • linux linux_kernel 3.10.83, 3.12.45, 3.14.47, 3.16.35, 3.18.19
  • linux Debian 14, Debian 13, Debian 12 3.16.7-ckt9-1

debian advisories DEBIAN-CVE-2014-9710

  • linux Ubuntu 14.04 LTS 3.13.0-57.95
  • linux-lts-utopic Ubuntu 14.04 LTS 3.16.0-38.52~14.04.1

ubuntu advisories UBUNTU-CVE-2014-9710

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel-xen SLES 11 SP3-TERADATA 3.0.101-0.63.TDC.1
  • kernel-syms SLES 11 SP3-TERADATA 3.0.101-0.63.TDC.1
  • kernel-trace SLES 11 SP3-TERADATA 3.0.101-0.63.TDC.1
  • kernel-source SLES 11 SP3-TERADATA 3.0.101-0.63.TDC.1
  • kernel-default SLES 11 SP3-TERADATA 3.0.101-0.63.TDC.1
  • kernel-ec2 SLES 11 SP4-LTSS 3.0.101-108.95.2
  • kernel-pae SLES 11 SP4-LTSS 3.0.101-108.95.2
  • kernel-xen SLES 11 SP4-LTSS 3.0.101-108.95.2

suse advisories SUSE-SU-2019:14089-1SUSE-SU-2015:1489-1SUSE-SU-2015:1224-1

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-2014-9710 updated

Kernel: fs: btrfs: non-atomic xattr replace operation

  • 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 Enterprise Linux 7 perf, kernel, bpftool, python-perf, kernel-kdump, kernel-tools, +3 more
    affected: no fix available
  • Red Hat Enterprise Linux 5 kernel 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

0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization
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.