CVE-2020-29443: debian debian_linux Out-of-bounds Read
Vulnerability summary
CVE-2020-29443 is a low (CVSS 3.9) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 31.6% of scored vulnerabilities.
Not severe (CVSS 3.9, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 16 · Related 13Timeline
- 22-01-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
ide_atapi_cmd_reply_end in hw/ide/atapi.c in QEMU 5.1.0 allows out-of-bounds read access because a buffer index is not validated.
CVSS metrics
6 scores · 5 sources · 2 versions- OSV · Red hatEcosystem advisory · calculated3.9LowCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L
- OSV · UbuntuEcosystem advisory · calculated3.9LowCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L
- OSV · DebianEcosystem advisory · calculated3.9LowCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L
- OSV · AlpineEcosystem advisory · calculated3.9LowCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:N/A:L
EPSS trend
Probability
0.38%
Chance of exploitation in the next 30 days
Percentile
32%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.37% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, administrative account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat10 products
- qemu-img< 10:1.5.3-175.el7_9.4
- qemu-img-rhev< 10:2.12.0-48.el7_9.3
- qemu-kvm< 10:1.5.3-175.el7_9.4
- qemu-kvm-common< 10:1.5.3-175.el7_9.4
- qemu-kvm-common-rhev< 10:2.12.0-48.el7_9.3
Debian2 products
- qemu< 1:5.2+dfsg-11
- debian_linuxEOL9.0 | 10.0
Alpine1 product
- qemu< 5.2.0-r0
Qemu1 product
- qemu5.1.0
Ubuntu1 product
- qemu< 2.0.0+dfsg-2ubuntu1.47+esm6 | < 1:2.5+dfsg-5ubuntu10.49 | < 1:2.11+dfsg-1ubuntu7.35 | < 1:4.2-3ubuntu6.12
5 vendors · 15 products
References
22 links- lists.nongnu.org/archive/html/qemu-devel/2020-11/msg04685.htmlX Refsource MISCMailing ListPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2021/01/18/2X Refsource MISCMailing ListPatchThird Party Advisory
lists.debian.org/debian-lts-announce/2021/02/msg00024.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.debian.org/debian-lts-announce/2022/09/msg00008.htmlMailing ListX Refsource MLISTThird Party Advisory
