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Fencer Vulns
high 7.8

CVE-2017-7374 json

Use-after-free vulnerability in fs/crypto/ in the Linux kernel before 4.10.7 allows local users to cause a denial of service (NULL pointer…

published 2017-03-31 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-16401

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 56%
public exploits
0
none known

Summary

Use-after-free vulnerability in fs/crypto/ in the Linux kernel before 4.10.7 allows local users to cause a denial of service (NULL pointer dereference) or possibly gain privileges by revoking keyring keys being used for ext4, f2fs, or ubifs encryption, causing cryptographic transform objects to be freed prematurely.

Patch / fix

  • linux linux_kernel 4.4.59, 4.9.20, 4.10.7
  • linux Debian 14, Debian 13, Debian 12 4.9.25-1

debian advisories DEBIAN-CVE-2017-7374

  • linux Ubuntu 16.04 LTS 4.4.0-75.96
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1016.25
  • linux-gke Ubuntu 16.04 LTS 4.4.0-1012.12
  • linux-hwe Ubuntu 16.04 LTS 4.10.0-32.36~16.04.1
  • linux-raspi2 Ubuntu 16.04 LTS 4.4.0-1054.61
  • linux-lts-xenial Ubuntu 14.04 LTS 4.4.0-75.96~14.04.1
  • linux-snapdragon Ubuntu 16.04 LTS 4.4.0-1057.61

ubuntu advisories UBUNTU-CVE-2017-7374

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-rt SLE Real Time 12 SP2 4.4.74-7.10.1
  • kernel-syms-rt SLE Real Time 12 SP2 4.4.74-7.10.1
  • kernel-rt_debug SLE Real Time 12 SP2 4.4.74-7.10.1
  • kernel-source-rt SLE Real Time 12 SP2 4.4.74-7.10.1
  • kernel-syms SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2, SLES 12 SP2 +1 more 4.4.59-92.17.2
  • kernel-source SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2, SLES 12 SP2 +1 more 4.4.59-92.17.2
  • kernel-default SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2, SLES 12 SP2 +3 more 4.4.59-92.17.3
  • kernel-obs-build SLE Software Development Kit 12 SP2 4.4.59-92.17.3

suse advisories SUSE-SU-2017:1990-1SUSE-SU-2017:1183-1

  • linux Arch Linux 4.10.8-1

arch linux advisories AVG-232

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-2017-7374 updated cvss 5.1

kernel: use-after-free in keyring key revocation

  • 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 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

0.80% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns 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.