CVE-2022-20770
published 2022-05-04CVE-2022-20770: On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A…
PriorityP347high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
6.97%
93.4th percentile
On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in CHM file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog. This advisory will be updated as additional information becomes available.
Affected
23 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_amp_for_endpoints | — | — |
| cisco | secure_endpoint | < 1.16.3 | 1.16.3 |
| cisco | secure_endpoint | < 1.17.2 | 1.17.2 |
| cisco | secure_endpoint | < 7.5.5 | 7.5.5 |
| cisco | secure_endpoint | >= 1.18.0 < 1.18.2 | 1.18.2 |
| clamav | clamav | <= 0.103.5 | — |
| clamav | clamav | >= 0 < 0.103.6+dfsg-0+deb11u1 | 0.103.6+dfsg-0+deb11u1 |
| clamav | clamav | >= 0 < 0.103.6+dfsg-1 | 0.103.6+dfsg-1 |
| clamav | clamav | >= 0 < 0.103.6+dfsg-1 | 0.103.6+dfsg-1 |
| clamav | clamav | >= 0 < 0.103.6+dfsg-1 | 0.103.6+dfsg-1 |
| clamav | clamav | >= 0 < 0.103.6+dfsg-0ubuntu0.18.04.1 | 0.103.6+dfsg-0ubuntu0.18.04.1 |
| clamav | clamav | >= 0 < 0.103.6+dfsg-0ubuntu0.20.04.1 | 0.103.6+dfsg-0ubuntu0.20.04.1 |
| clamav | clamav | >= 0 < 0.103.6+dfsg-0ubuntu0.22.04.1 | 0.103.6+dfsg-0ubuntu0.22.04.1 |
| clamav | clamav | >= 0 < 0.103.6+dfsg-0ubuntu0.14.04.1+esm1 | 0.103.6+dfsg-0ubuntu0.14.04.1+esm1 |
| clamav | clamav | >= 0 < 0.103.6+dfsg-0ubuntu0.16.04.1+esm1 | 0.103.6+dfsg-0ubuntu0.16.04.1+esm1 |
| clamav | clamav | 0.104.0 – 0.104.2 | — |
| debian | clamav | < clamav 0.103.6+dfsg-1 (bookworm) | clamav 0.103.6+dfsg-1 (bookworm) |
| debian | debian_linux | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| msrc | cbl2_clamav_0.105.0-1_on_cbl_mariner_2.0 | — | — |
| msrc | cm1_clamav_0.103.6-1_on_cbl_mariner_1.0 | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv2.07.8HIGHAV:N/AC:L/Au:N/C:N/I:N/A:C
osv7.5HIGH
vendor_cisco8.6HIGH
vendor_debian8.6HIGH
vendor_ubuntu8.6HIGH
vendor_msrc7.5HIGH
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OSV
clamav vulnerabilities
osv·2022-05-17·CVSS 7.5
CVE-2022-20770 [HIGH] clamav vulnerabilities
clamav vulnerabilities
USN-5423-1 fixed several vulnerabilities in ClamAV. This update provides
the corresponding update for Ubuntu 14.04 ESM and 16.04 ESM.
Original advisory details:
Michał Dardas discovered that ClamAV incorrectly handled parsing CHM files.
A remote attacker could possibly use this issue to cause ClamAV to stop
responding, resulting in a denial of service. (CVE-2022-20770)
Michał Dardas discovered that ClamAV incorrectly handled parsing TIFF
files. A remote attacker could possibly use this issue to cause ClamAV to
stop responding, resulting in a denial of service. (CVE-2022-20771)
Michał Dardas discovered that ClamAV incorrectly handled parsing HTML
files. A remote attacker could possibly use this issue to cause ClamAV to
consume resources, resulting in a denial of
OSV
clamav vulnerabilities
osv·2022-05-17·CVSS 7.5
CVE-2022-20770 [HIGH] clamav vulnerabilities
clamav vulnerabilities
Michał Dardas discovered that ClamAV incorrectly handled parsing CHM files.
A remote attacker could possibly use this issue to cause ClamAV to stop
responding, resulting in a denial of service. (CVE-2022-20770)
Michał Dardas discovered that ClamAV incorrectly handled parsing TIFF
files. A remote attacker could possibly use this issue to cause ClamAV to
stop responding, resulting in a denial of service. (CVE-2022-20771)
Michał Dardas discovered that ClamAV incorrectly handled parsing HTML
files. A remote attacker could possibly use this issue to cause ClamAV to
consume resources, resulting in a denial of service. (CVE-2022-20785)
Michał Dardas discovered that ClamAV incorrectly handled loading the
signature database. A remote attacker could possibly use this issue
GHSA
GHSA-5443-gj53-cw56: On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0
ghsa_unreviewed·2022-05-05
CVE-2022-20770 [HIGH] GHSA-5443-gj53-cw56: On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0
On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in CHM file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog. This advisory will be updated as additional information becomes available.
OSV
CVE-2022-20770: On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0
osv·2022-05-04·CVSS 7.5
CVE-2022-20770 [HIGH] CVE-2022-20770: On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0
On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in CHM file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog. This advisory will be updated as additional information becomes available.
Ubuntu
ClamAV vulnerabilities
vendor_ubuntu·2022-05-17·CVSS 8.6
CVE-2022-20770 [HIGH] ClamAV vulnerabilities
Title: ClamAV vulnerabilities
Summary: Several security issues were fixed in ClamAV.
Michał Dardas discovered that ClamAV incorrectly handled parsing CHM files.
A remote attacker could possibly use this issue to cause ClamAV to stop
responding, resulting in a denial of service. (CVE-2022-20770)
Michał Dardas discovered that ClamAV incorrectly handled parsing TIFF
files. A remote attacker could possibly use this issue to cause ClamAV to
stop responding, resulting in a denial of service. (CVE-2022-20771)
Michał Dardas discovered that ClamAV incorrectly handled parsing HTML
files. A remote attacker could possibly use this issue to cause ClamAV to
consume resources, resulting in a denial of service. (CVE-2022-20785)
Michał Dardas discovered that ClamAV incorrectly handled loading the
sign
Ubuntu
ClamAV vulnerabilities
vendor_ubuntu·2022-05-17·CVSS 8.6
CVE-2022-20771 [HIGH] ClamAV vulnerabilities
Title: ClamAV vulnerabilities
Summary: Several security issues were fixed in ClamAV.
USN-5423-1 fixed several vulnerabilities in ClamAV. This update provides
the corresponding update for Ubuntu 14.04 ESM and 16.04 ESM.
Original advisory details:
Michał Dardas discovered that ClamAV incorrectly handled parsing CHM files.
A remote attacker could possibly use this issue to cause ClamAV to stop
responding, resulting in a denial of service. (CVE-2022-20770)
Michał Dardas discovered that ClamAV incorrectly handled parsing TIFF
files. A remote attacker could possibly use this issue to cause ClamAV to
stop responding, resulting in a denial of service. (CVE-2022-20771)
Michał Dardas discovered that ClamAV incorrectly handled parsing HTML
files. A remote attacker could possibly use this issue
Microsoft
ClamAV CHM File Parsing Denial of Service Vulnerability Affecting Cisco Products: April 2022
vendor_msrc·2022-05-10·CVSS 7.5
CVE-2022-20770 [HIGH] ClamAV CHM File Parsing Denial of Service Vulnerability Affecting Cisco Products: April 2022
ClamAV CHM File Parsing Denial of Service Vulnerability Affecting Cisco Products: April 2022
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
cisco: cisco
Customer Action Required: Yes
Remediation: CBL-Marin
Cisco
ClamAV CHM File Parsing Denial of Service Vulnerability Affecting Cisco Products: May 2022
vendor_cisco·2022-05-04·CVSS 8.6
CVE-2022-20770 [HIGH] CWE-399 ClamAV CHM File Parsing Denial of Service Vulnerability Affecting Cisco Products: May 2022
ClamAV CHM File Parsing Denial of Service Vulnerability Affecting Cisco Products: May 2022
On May 4, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed:
A vulnerability in CHM file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device.
For a description of this vulnerability, see the ClamAV blog.
This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-dos-prVGcHLd
Debian
CVE-2022-20770: clamav - On April 20, 2022, the following vulnerability in the ClamAV scanning library ve...
vendor_debian·2022·CVSS 8.6
CVE-2022-20770 [HIGH] CVE-2022-20770: clamav - On April 20, 2022, the following vulnerability in the ClamAV scanning library ve...
On April 20, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in CHM file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog. This advisory will be updated as additional information becomes available.
Scope: local
bookworm: resolved (fixed in 0.103.6+dfsg-1)
bullseye: resolved (fixed in 0.103.6+dfsg-0+deb11u1)
forky: resolved (fixed in 0.103.6+dfsg-1)
sid: resolved (fixed in 0.103.6+dfsg-1)
trixie: resolved (fixed in 0.103.6+dfsg-1)
Cisco
ClamAV CHM File Parsing Denial of Service Vulnerability Affecting Cisco Products: May 2022
vendor_cisco·CVSS 3.1
CVE-2022-20770 ClamAV CHM File Parsing Denial of Service Vulnerability Affecting Cisco Products: May 2022
CVE-2022-20770: ClamAV CHM File Parsing Denial of Service Vulnerability Affecting Cisco Products: May 2022
On May 4, 2022, the following vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier was disclosed: A vulnerability in CHM file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog . This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-dos-prVGcHLd
CVSS: 3.1
CWE: CWE-399, CWE-399
Bug IDs: CSCwa95108, CSCwa95109, CSCwa95110, CSCwa
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://lists.debian.org/debian-lts-announce/2022/06/msg00004.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7RV6BLIATIJE74SQ6NG5ZC4JK5MMDQ2R/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BX5ZXNHP4NFYQ5BFSKY3WT7NTBZUYG7L/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N4NNBIJVG6Z4PDIKUZXTYXICYUAYAZ56/https://security.gentoo.org/glsa/202310-01https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-dos-prVGcHLdhttps://lists.debian.org/debian-lts-announce/2022/06/msg00004.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7RV6BLIATIJE74SQ6NG5ZC4JK5MMDQ2R/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BX5ZXNHP4NFYQ5BFSKY3WT7NTBZUYG7L/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N4NNBIJVG6Z4PDIKUZXTYXICYUAYAZ56/https://security.gentoo.org/glsa/202310-01https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-dos-prVGcHLd
2022-05-04
Published