CVE-2019-20096

MEDIUM

Linux Kernel < 5.1 - Memory Leak

Title source: rule

Description

In the Linux kernel before 5.1, there is a memory leak in __feat_register_sp() in net/dccp/feat.c, which may cause denial of service, aka CID-1d3ff0950e2b.

References (10)

[Broken Link, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html

[Third Party Advisory, VDB Entry] http://packetstormsecurity.com/files/156455/Kernel-Live-Patch-Security-Notice-LSN-0063-1.html

[Release Notes, Vendor Advisory] https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1

[Patch, Vendor Advisory] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1d3ff0950e2b40dc861b1739029649d03f591820

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html

[Third Party Advisory] https://usn.ubuntu.com/4285-1/

[Third Party Advisory] https://usn.ubuntu.com/4286-1/

[Third Party Advisory] https://usn.ubuntu.com/4286-2/

[Third Party Advisory] https://usn.ubuntu.com/4287-1/

[Third Party Advisory] https://usn.ubuntu.com/4287-2/

Scores

CVSS v3 5.5

EPSS 0.0007

EPSS Percentile 22.1%

Attack Vector LOCAL

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

Classification

CWE

CWE-401

Status published

Affected Products (5)

linux/linux_kernel < 5.1

canonical/ubuntu_linux

debian/debian_linux

Timeline

Published Dec 30, 2019

Tracked Since Feb 18, 2026