QEMU 4.1.0 has a memory leak in zrle_compress_data in ui/vnc-enc-zrle.c...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://git.qemu.org/?p=qemu.git%3Ba=commit%3Bh=6bf21f3d83e95bcc4ba35a7a07cc6655e8b010b0
- http://www.openwall.com/lists/oss-security/2020/03/05/1
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html
- https://www.debian.org/security/2020/dsa-4665
- https://usn.ubuntu.com/4372-1/
- https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
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Weaknesses (CWE)
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MITRE ATT&CK TTPs
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