CVE-2019-20382

low

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

http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html

http://www.openwall.com/lists/oss-security/2020/03/05/1

https://git.qemu.org/?p=qemu.git;a=commit;h=6bf21f3d83e95bcc4ba35a7a07cc6655e8b010b0

https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html

https://usn.ubuntu.com/4372-1/

https://www.debian.org/security/2020/dsa-4665

Details

Source: MITRE

Published: 2020-03-05

Updated: 2020-07-26

Type: CWE-401

Risk Information

CVSS v2

Base Score: 2.7

Vector: AV:A/AC:L/Au:S/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 5.1

Severity: LOW

CVSS v3

Base Score: 3.5

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

Impact Score: 1.4

Exploitability Score: 2.1

Severity: LOW