CVE-2019-20382

LOW

Qemu - Memory Leak

Title source: rule

Description

QEMU 4.1.0 has a memory leak in zrle_compress_data in ui/vnc-enc-zrle.c during a VNC disconnect operation because libz is misused, resulting in a situation where memory allocated in deflateInit2 is not freed in deflateEnd.

References (6)

[Broken Link, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html

[Mailing List, Patch, Third Party Advisory] http://www.openwall.com/lists/oss-security/2020/03/05/1

[Patch] https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6bf21f3d83e95bcc4ba35a7a07cc6655e8b010b0

[Mailing List, Third Party Advisory] https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html

[Third Party Advisory] https://usn.ubuntu.com/4372-1/

[Third Party Advisory] https://www.debian.org/security/2020/dsa-4665

Scores

CVSS v3 3.5

EPSS 0.0004

EPSS Percentile 13.3%

Attack Vector ADJACENT_NETWORK

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

Classification

CWE

CWE-401

Status published

Affected Products (8)

qemu/qemu

opensuse/leap

debian/debian_linux

canonical/ubuntu_linux

Timeline

Published Mar 05, 2020

Tracked Since Feb 18, 2026