CVE-2019-15666

Name: CVE-2019-15666
Creator: NVD / NIST
Published: 2019-08-27T05:15:10.57+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.4/10EPSS 1.73%

Last modified Jun 17, 2026

CVE-2019-15666 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. An issue was discovered in the Linux kernel before 5.0.19. There is an out-of-bounds array access in __xfrm_policy_unlink, which will cause denial of service, because verify_newpolicy_info in net/xfrm/xfrm_user.c mishandles directory validation.. EPSS estimates a 1.73% chance of exploitation in the next 30 days.

Description

An issue was discovered in the Linux kernel before 5.0.19. There is an out-of-bounds array access in __xfrm_policy_unlink, which will cause denial of service, because verify_newpolicy_info in net/xfrm/xfrm_user.c mishandles directory validation.

Metrics

CVSS 3.1

4.4/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.73%

74.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 5.0.19
Debian	Debian Linux	8.0
Opensuse	Leap	15.0
Opensuse	Leap	15.1

References

http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.htmlThird Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.19Release Notes
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b805d78d300bcf2c83d6df7da0c818b0fee41427Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00014.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00015.htmlThird Party Advisory
https://security.netapp.com/advisory/ntap-20191004-0001/Third Party Advisory
https://support.f5.com/csp/article/K53420251?utm_source=f5support&amp%3Butm_medium=RSS
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00064.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2019-09/msg00066.htmlThird Party Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.0.19Release Notes
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b805d78d300bcf2c83d6df7da0c818b0fee41427Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00014.htmlThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/09/msg00015.htmlThird Party Advisory
https://security.netapp.com/advisory/ntap-20191004-0001/Third Party Advisory
https://support.f5.com/csp/article/K53420251?utm_source=f5support&amp%3Butm_medium=RSS

Timeline

Published: Aug 27, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-15666?

How severe is CVE-2019-15666?

CVE-2019-15666 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 1.73% probability of exploitation in the next 30 days.

How do I fix CVE-2019-15666?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-15666?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST