Vulnerability Details : 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.
Products affected by CVE-2019-20382
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:*
- cpe:2.3:a:qemu:qemu:4.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-20382
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 13 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-20382
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.7
|
LOW | AV:A/AC:L/Au:S/C:N/I:N/A:P |
5.1
|
2.9
|
NIST | |
|
3.5
|
LOW | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
2.1
|
1.4
|
NIST |
CWE ids for CVE-2019-20382
-
The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-20382
-
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00007.html
[security-announce] openSUSE-SU-2020:0468-1: important: Security updateBroken Link;Third Party Advisory
-
https://usn.ubuntu.com/4372-1/
USN-4372-1: QEMU vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2020/07/msg00020.html
[SECURITY] [DLA 2288-1] qemu security updateMailing List;Third Party Advisory
-
https://www.debian.org/security/2020/dsa-4665
Debian -- Security Information -- DSA-4665-1 qemuThird Party Advisory
-
http://www.openwall.com/lists/oss-security/2020/03/05/1
oss-security - CVE-2019-20382 QEMU: vnc: memory leakage upon disconnectMailing List;Patch;Third Party Advisory
-
https://git.qemu.org/?p=qemu.git;a=commit;h=6bf21f3d83e95bcc4ba35a7a07cc6655e8b010b0
git.qemu.org Git - qemu.git/commitPatch;Third Party Advisory
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