CVE-2019-20382
Published: March 5, 2020Last modified: November 8, 2023
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 3.5 |
| Attack Vector | ADJACENT_NETWORK |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | NONE |
| Availability impact | LOW |
| Vector | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | qemu | Not affected (7.1.0-r4) |
| Stream | qemu | Not affected (8.0.4-r0) |
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%3Ba=commit%3Bh=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