PT-2020-5305 · Qemu+8 · Qemu+8
Prasad J Pandit
·
Published
2019-12-10
·
Updated
2024-11-08
·
CVE-2019-20382
CVSS v3.1
3.5
Low
| Vector | AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
Name of the Vulnerable Software and Affected Versions
QEMU version 4.1.0
Description
The issue is related to a memory leak in the
zrle compress data function during a VNC disconnect operation due to the misuse of libz. This results in memory allocated in deflateInit2 not being freed in deflateEnd, potentially allowing a remote attacker to access confidential data, compromise its integrity, and cause a denial of service.Recommendations
For QEMU version 4.1.0, consider updating to a version where the
zrle compress data function is properly handled to prevent memory leaks. As a temporary workaround, consider restricting access to the VNC disconnect operation to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Memory Leak
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Weakness Enumeration
Related Identifiers
Affected Products
Alt Linux
Almalinux
Centos
Linuxmint
Qemu
Red Hat
Rocky Linux
Suse
Ubuntu