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Fencer Vulns
high 7.8

CVE-2019-25045 json

An issue was discovered in the Linux kernel before 5.0.19.

published 2021-06-07 5 y ago modified 2026-06-17 4 mo ago also EUVD-2019-11495

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

An issue was discovered in the Linux kernel before 5.0.19. The XFRM subsystem has a use-after-free, related to an xfrm_state_fini panic, aka CID-dbb2483b2a46.

Patch / fix

  • linux linux_kernel 5.0.19
  • linux Debian 14, Debian 13, Debian 12 5.2.6-1

debian advisories DEBIAN-CVE-2019-25045

  • linux Ubuntu 16.04 LTS 4.4.0-166.195
  • linux Ubuntu 18.04 LTS 4.15.0-66.75
  • linux-aws Ubuntu 16.04 LTS 4.4.0-1096.107
  • linux-aws Ubuntu 18.04 LTS 4.15.0-1052.54
  • linux-gcp Ubuntu 16.04 LTS 4.15.0-1047.50
  • linux-hwe Ubuntu 16.04 LTS 4.15.0-66.75~16.04.1
  • linux-kvm Ubuntu 16.04 LTS 4.4.0-1060.67
  • linux-kvm Ubuntu 18.04 LTS 4.15.0-1048.48

ubuntu advisories UBUNTU-CVE-2019-25045

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 SP5, SLE Micro 5.0 4.12.14-10.49.1
  • kernel-syms-rt SLE Real Time 12 SP5 4.12.14-10.49.1
  • kernel-rt_debug SLE Real Time 12 SP5 4.12.14-10.49.1
  • kernel-source-rt SLE Real Time 12 SP5 4.12.14-10.49.1
  • kernel-syms SLES for SAP 12 SP5, SLES 12 SP5 4.12.14-122.77.1
  • kernel-source SLES for SAP 12 SP5, SLES 12 SP5 4.12.14-122.77.1
  • kernel-default SLES for SAP 12 SP5, SLES 12 SP5, SLE Workstation Extension 12 SP5 +2 more 4.12.14-122.77.1
  • kernel-obs-build SLE Software Development Kit 12 SP5 4.12.14-122.77.1

suse advisories SUSE-SU-2021:2349-1SUSE-SU-2021:2324-1SUSE-SU-2021:2321-1

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-2019-25045 updated cvss 7.8

kernel: use-after-free in the XFRM subsystem related to an xfrm_state_fini() panic

  • 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, kernel-alt, python-perf, +9 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +82 more
    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

0.50% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • syzkaller.appspot.com https://syzkaller.appspot.com/bug?id=f99edaeec58ad40380ed5813d89e205861be2896 referenced PoC, tagged "exploit" by a source, unverified
  • sites.google.com https://sites.google.com/view/syzscope/warning-in-xfrm_state_fini-2 referenced PoC, tagged "exploit" by a source, unverified

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 4.6 AV:L/AC:L/Au:N/C:P/I:P/A:P

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.