CVE-2019-9824: qemu Use of Uninitialized Resource
Vulnerability summary
CVE-2019-9824 is a medium (CVSS 5.5) Use of Uninitialized Resource vulnerability in qemu. EPSS estimates a 0.52% chance of exploitation in the next 30 days, higher than 43.9% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 21 · Related 16Timeline
- 03-06-2019PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
tcp_emu in slirp/tcp_subr.c (aka slirp/src/tcp_subr.c) in QEMU 3.0.0 uses uninitialized data in an snprintf call, leading to Information disclosure.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · Red hatEcosystem advisory · calculated2.8LowCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:NDiffers
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS trend
Probability
0.52%
Chance of exploitation in the next 30 days
Percentile
44%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.52% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat6 products
- qemu-guest-agent< 2:0.12.1.2-2.506.el6_10.4
- qemu-img< 2:0.12.1.2-2.506.el6_10.4 | < 10:1.5.3-167.el7
- qemu-kvm< 2:0.12.1.2-2.506.el6_10.4 | < 10:1.5.3-167.el7
- qemu-kvm-common< 10:1.5.3-167.el7
- qemu-kvm-debuginfo< 2:0.12.1.2-2.506.el6_10.4 | < 10:1.5.3-167.el7
Debian2 products
- qemu< 1:3.1+dfsg-6
- slirp4netns< 0.3.1-1
Qemu1 product
- qemu3.0.0
Ubuntu1 product
- qemu< 2.0.0+dfsg-2ubuntu1.46 | < 1:2.5+dfsg-5ubuntu10.38 | < 1:2.11+dfsg-1ubuntu7.13
4 vendors · 10 products
References
25 links- lists.gnu.org/archive/html/qemu-devel/2019-03/msg00400.htmlX Refsource MISCPatchThird Party Advisory