CVE-2019-20382

high

Published 2020-06-30 · Modified 2020-06-30

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

8.0

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.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

Mitigation details

Source: Debian Security Tracker · View original ↗ · DFSG

CVE-2019-20382 NameCVE-2019-20382 DescriptionQEMU 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. SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub…

CVE-2019-20382

Name	CVE-2019-20382
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.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-2288-1, DSA-4665-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
qemu (PTS)	bullseye	1:5.2+dfsg-11+deb11u3	fixed
	bullseye (security)	1:5.2+dfsg-11+deb11u5	fixed
	bookworm	1:7.2+dfsg-7+deb12u18	fixed
	bookworm (security)	1:7.2+dfsg-7+deb12u15	fixed
	trixie	1:10.0.8+ds-0+deb13u1	fixed
	trixie (security)	1:10.0.2+ds-2+deb13u1	fixed
	forky	1:11.0.0+ds-2	fixed
	sid	1:11.0.1+ds-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
qemu	source	stretch	1:2.8+dfsg-6+deb9u10	DLA-2288-1
qemu	source	buster	1:3.1+dfsg-8+deb10u5	DSA-4665-1
qemu	source	(unstable)	1:4.2-1
qemu-kvm	source	(unstable)	(unfixed)

Notes

[jessie] - qemu <postponed> (Minor, can be fixed along in future DLA)
https://www.openwall.com/lists/oss-security/2020/03/05/1
https://git.qemu.org/?p=qemu.git;a=commitdiff;h=6bf21f3d83e95bcc4ba35a7a07cc6655e8b010b0

Home - Debian Security - Source (Git)

Apply commands

text fix

Notes

[jessie] - qemu <postponed> (Minor, can be fixed along in future DLA)https://www.openwall.com/lists/oss-security/2020/03/05/1https://git.qemu.org/?p=qemu.git;a=commitdiff;h=6bf21f3d83e95bcc4ba35a7a07cc6655e8b010b0

OS impact

SUSE Affected 1 release

Version	Status	Fixed in
—	Affected	—

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`1:4.2-1`
sid	Fixed	`1:4.2-1`
forky	Fixed	`1:4.2-1`
bullseye	Fixed	`1:4.2-1`
bookworm	Fixed	`1:4.2-1`

Red Hat Fixed 1 release

Version	Status	Fixed in
8	Fixed	—

Rocky Linux Fixed 1 release

Version	Status	Fixed in
8	Fixed	—

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.