CVE catalog

CVE-2022-20803

clamav: CVE-2022-20803

Severity: Low
Source: [NVD] · [CVE record]
EPSS: 1.06% · Oct 25, 2026

A vulnerability in the OLE2 file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device.The vulnerability is due to incorrect use of the realloc function that may result in a double-free. An attacker could exploit this vulnerability by submitting a crafted OLE2 file to be scanned by ClamAV on the affected device. An exploit could allow the attacker to cause the ClamAV scanning process to crash, resulting in a denial of service condition.

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	clamav	sid	`1.4.6+dfsg-1`	not affected
Debian	clamav	forky	`1.4.6+dfsg-1`	not affected
Debian	clamav	trixie	`1.4.3+dfsg-1`	not affected
Debian	clamav	bookworm	`1.4.3+dfsg-1~deb12u2`	not affected
Debian	clamav	bookworm-security	`1.4.6+dfsg-0+deb12u1`	not affected

Fixed-version evidence

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

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[clamav]Not affected
Details (2)
- 1.4.3+dfsg-1~deb12u2 · amd64 · bookworm
  Not affected
  dsa · clamav · debian · bookworm
- 1.4.3+dfsg-1~deb12u2 · arm64 · bookworm
  Not affected
  dsa · clamav · debian · bookworm
[clamav-base]Not affected
Source package: [clamav]
Details (2)
- 1.4.3+dfsg-1~deb12u2 · all · bookworm
  Not affected
  dsa · clamav · debian · bookworm
- 1.4.3+dfsg-1~deb12u2 · all · bookworm
  Not affected
  dsa · clamav · debian · bookworm
[clamav-daemon]Not affected
Source package: [clamav]
Details (2)
- 1.4.3+dfsg-1~deb12u2 · amd64 · bookworm
  Not affected
  dsa · clamav · debian · bookworm
- 1.4.3+dfsg-1~deb12u2 · arm64 · bookworm
  Not affected
  dsa · clamav · debian · bookworm
[clamav-doc]Not affected
Source package: [clamav]
Details (2)
- 1.4.3+dfsg-1~deb12u2 · all · bookworm
  Not affected
  dsa · clamav · debian · bookworm
- 1.4.3+dfsg-1~deb12u2 · all · bookworm
  Not affected
  dsa · clamav · debian · bookworm
[clamav-docs]Not affected
Source package: [clamav]
Details (2)
- 1.4.3+dfsg-1~deb12u2 · all · bookworm
  Not affected
  dsa · clamav · debian · bookworm
- 1.4.3+dfsg-1~deb12u2 · all · bookworm
  Not affected
  dsa · clamav · debian · bookworm
[clamav-freshclam]Not affected
Source package: [clamav]
Details (2)
- 1.4.3+dfsg-1~deb12u2 · amd64 · bookworm
  Not affected
  dsa · clamav · debian · bookworm
- 1.4.3+dfsg-1~deb12u2 · arm64 · bookworm
  Not affected
  dsa · clamav · debian · bookworm
[clamav-milter]Not affected
Source package: [clamav]
Details (2)
- 1.4.3+dfsg-1~deb12u2 · amd64 · bookworm
  Not affected
  dsa · clamav · debian · bookworm
- 1.4.3+dfsg-1~deb12u2 · arm64 · bookworm
  Not affected
  dsa · clamav · debian · bookworm
[clamav-testfiles]Not affected
Source package: [clamav]
Details (2)
- 1.4.3+dfsg-1~deb12u2 · all · bookworm
  Not affected
  dsa · clamav · debian · bookworm
- 1.4.3+dfsg-1~deb12u2 · all · bookworm
  Not affected
  dsa · clamav · debian · bookworm
[clamdscan]Not affected
Source package: [clamav]
Details (2)
- 1.4.3+dfsg-1~deb12u2 · amd64 · bookworm
  Not affected
  dsa · clamav · debian · bookworm
- 1.4.3+dfsg-1~deb12u2 · arm64 · bookworm
  Not affected
  dsa · clamav · debian · bookworm
[libclamav12]Not affected
Source package: [clamav]
Details (2)
- 1.4.3+dfsg-1~deb12u2 · amd64 · bookworm
  Not affected
  dsa · clamav · debian · bookworm
- 1.4.3+dfsg-1~deb12u2 · arm64 · bookworm
  Not affected
  dsa · clamav · debian · bookworm
[libclamav-dev]Not affected
Source package: [clamav]
Details (2)
- 1.4.3+dfsg-1~deb12u2 · amd64 · bookworm
  Not affected
  dsa · clamav · debian · bookworm
- 1.4.3+dfsg-1~deb12u2 · arm64 · bookworm
  Not affected
  dsa · clamav · debian · bookworm

Observed: Oct 23, 2026, 6:23:59 PM UTC

References

[https://security-tracker.debian.org/tracker/CVE-2022-20803]

[Debian Security Tracker] · [FIRST EPSS]