VulnerabilityModified

CVE-2019-20382

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.

LOW 3.5EPSS 0.87%

Does this matter?

Lower severity and a low EPSS score (0.87%). Track it; it rarely justifies an emergency change on its own.

Description

CVSS 3.1: 3.5 LOWCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
EPSS: 0.87% probability · 58th percentile
Public exploits: None in Exploit-DB
CISA KEV: Not listed
Weakness: CWE-401
Affected: qemu/qemu · opensuse/leap · debian/debian linux · canonical/ubuntu linux
Source: cve@mitre.org

EPSS trend

EPSS 0.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.htmlBroken Link, Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/03/05/1Mailing List, Patch, Third Party Advisory
https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6bf21f3d83e95bcc4ba35a7a07cc6655e8b010b0
https://lists.debian.org/debian-lts-announce/2020/07/msg00020.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/4372-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4665Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.htmlBroken Link, Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/03/05/1Mailing List, Patch, Third Party Advisory
https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6bf21f3d83e95bcc4ba35a7a07cc6655e8b010b0
https://lists.debian.org/debian-lts-announce/2020/07/msg00020.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/4372-1/Third Party Advisory
https://www.debian.org/security/2020/dsa-4665Third Party Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.