CVE catalog

CVE-2021-20295

qemu: CVE-2021-20295

Severity: Medium · CVSS 6.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Published: Jan 1, 2021, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.30% · Oct 25, 2026

It was discovered that the update for the virt:rhel module in the RHSA-2020:4676 (https://access.redhat.com/errata/RHSA-2020:4676) erratum released as part of Red Hat Enterprise Linux 8.3 failed to include the fix for the qemu-kvm component issue CVE-2020-10756, which was previously corrected in virt:rhel/qemu-kvm via erratum RHSA-2020:4059 (https://access.redhat.com/errata/RHSA-2020:4059). CVE-2021-20295 was assigned to that Red Hat specific security regression. For more details about the original security issue CVE-2020-10756, refer to bug 1835986 or the CVE page: https://access.redhat.com/security/cve/CVE-2020-10756.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	qemu	sid	`1:11.1.2+ds-3`	not affected
Debian	qemu	forky	`1:11.1.2+ds-3`	not affected
Debian	qemu	trixie	`1:10.0.13+ds-0+deb13u1`	not affected
Debian	qemu	trixie-security	`1:10.0.2+ds-2+deb13u1`	not affected
Debian	qemu	bookworm	`1:7.2+dfsg-7+deb12u18`	not affected
Debian	qemu	bookworm-security	`1:7.2+dfsg-7+deb12u15`	not affected

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	qemu	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	qemu	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	qemu	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	qemu	source	bookworm	`Not affected`	unimportant	Not reported	Not reported

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

[qemu-block-extra]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18+b3 · arm64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · arm64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-guest-agent]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18+b3 · arm64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · arm64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18+b3 · arm64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · arm64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system-arm]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18+b3 · arm64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · arm64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system-common]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18+b3 · arm64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · arm64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system-data]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18 · all · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18 · all · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · all · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · all · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · all · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system-gui]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18+b3 · arm64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · arm64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system-mips]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18+b3 · arm64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · arm64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system-misc]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18+b3 · arm64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · arm64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system-modules-opengl]Unknown
Source package: [qemu]
Details (2)
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system-modules-spice]Unknown
Source package: [qemu]
Details (2)
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system-ppc]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18+b3 · arm64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · arm64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system-riscv]Unknown
Source package: [qemu]
Details (2)
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system-s390x]Unknown
Source package: [qemu]
Details (2)
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system-sparc]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18+b3 · arm64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · arm64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system-x86]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18+b3 · arm64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · arm64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-system-xen]Unknown
Source package: [qemu]
Details (3)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-user]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18+b3 · arm64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · arm64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-user-binfmt]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18+b3 · arm64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · arm64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
[qemu-user-static]Unknown
Source package: [qemu]
Details (6)
- 1:7.2+dfsg-7+deb12u18+b3 · amd64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u18+b3 · arm64 · bookworm
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · amd64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:10.0.2+ds-2+deb13u1~bpo12+1 · arm64 · bookworm-backports
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · amd64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm
- 1:7.2+dfsg-7+deb12u15 · arm64 · bookworm-security
  Not affected
  dsa · qemu · debian · bookworm

Next results

Observed: Oct 23, 2026, 5:54:19 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [Red Hat security advisories and VEX]