CVE-2022-20796 (GCVE-0-2022-20796)
Vulnerability from cvelistv5 – Published: 2022-05-04 17:06 – Updated: 2024-11-06 16:15
VLAI
EPSS
VEX
Title
ClamAV Truncated File Denial of Service Vulnerability Affecting Cisco Products: April 2022
Summary
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 Clam AntiVirus (ClamAV) versions 0.103.4, 0.103.5, 0.104.1, and 0.104.2 could allow an authenticated, local attacker to cause a denial of service condition on an affected device. For a description of this vulnerability, see the ClamAV blog.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-11-06 15:58 UTC
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisory |
| https://lists.debian.org/debian-lts-announce/2022… | mailing-list |
| https://security.gentoo.org/glsa/202310-01 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Cisco | Cisco AMP for Endpoints |
Affected:
n/a
|
guessed |
Date Public
2022-05-04 00:00
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"lastModified": "2024-11-21T06:43:34.413",
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"published": "2022-05-04T17:15:08.797",
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"source": "Microsoft CSAF VEX",
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"title": "ClamAV Truncated File Denial of Service Vulnerability Affecting Cisco Products: April 2022",
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Para una descripci\u00f3n de esta vulnerabilidad, vea el blog de ClamAV\"}],\"affected\":[{\"source\":\"psirt@cisco.com\",\"affectedData\":[{\"vendor\":\"Cisco\",\"product\":\"Cisco AMP for 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"redhat_vex": {
"current_release_date": "2025-11-21T15:54:25+00:00",
"cve": "CVE-2022-20796",
"id": "CVE-2022-20796",
"initial_release_date": "2022-05-04T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "clamav: NULL-pointer dereference crash in the scan verdict cache check",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-20796.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-08-29T02:38:20Z",
"cve": "CVE-2022-20796",
"id": "CVE-2022-20796",
"initial_release_date": "2023-02-15T03:30:08Z",
"product_status:known_affected": "59",
"product_status:recommended": "177",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2022-20796",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2022-20796.json",
"version": "18"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-dos-vL9x58p4\", \"name\": \"20220504 ClamAV Truncated File Denial of Service Vulnerability Affecting Cisco Products: April 2022\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7RV6BLIATIJE74SQ6NG5ZC4JK5MMDQ2R/\", \"name\": \"FEDORA-2022-b8691af27b\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N4NNBIJVG6Z4PDIKUZXTYXICYUAYAZ56/\", \"name\": \"FEDORA-2022-0ac71a8f3a\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BX5ZXNHP4NFYQ5BFSKY3WT7NTBZUYG7L/\", \"name\": \"FEDORA-2022-a910a41a17\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2022/06/msg00004.html\", \"name\": \"[debian-lts-announce] 20220603 [SECURITY] [DLA 3042-1] clamav security update\", \"tags\": [\"mailing-list\", \"x_transferred\"]}, {\"url\": \"https://security.gentoo.org/glsa/202310-01\", \"name\": \"GLSA-202310-01\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-03T02:24:49.535Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-20796\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-11-06T15:58:27.623116Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-11-06T15:58:50.323Z\"}}], \"cna\": {\"title\": \"ClamAV Truncated File Denial of Service Vulnerability Affecting Cisco Products: April 2022\", \"source\": {\"defect\": [[\"CSCwa85589\", \"CSCwb13945\", \"CSCwb13949\"]], \"advisory\": \"cisco-sa-clamav-dos-vL9x58p4\", \"discovery\": \"INTERNAL\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 6.5, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco AMP for Endpoints\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"exploits\": [{\"lang\": \"en\", \"value\": \"The Cisco Product Security Incident Response Team is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.\"}], \"datePublic\": \"2022-05-04T00:00:00.000Z\", \"references\": [{\"url\": \"https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-dos-vL9x58p4\", \"name\": \"20220504 ClamAV Truncated File Denial of Service Vulnerability Affecting Cisco Products: April 2022\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7RV6BLIATIJE74SQ6NG5ZC4JK5MMDQ2R/\", \"name\": \"FEDORA-2022-b8691af27b\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N4NNBIJVG6Z4PDIKUZXTYXICYUAYAZ56/\", \"name\": \"FEDORA-2022-0ac71a8f3a\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BX5ZXNHP4NFYQ5BFSKY3WT7NTBZUYG7L/\", \"name\": \"FEDORA-2022-a910a41a17\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2022/06/msg00004.html\", \"name\": \"[debian-lts-announce] 20220603 [SECURITY] [DLA 3042-1] clamav security update\", \"tags\": [\"mailing-list\"]}, {\"url\": \"https://security.gentoo.org/glsa/202310-01\", \"name\": \"GLSA-202310-01\", \"tags\": [\"vendor-advisory\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"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 Clam AntiVirus (ClamAV) versions 0.103.4, 0.103.5, 0.104.1, and 0.104.2 could allow an authenticated, local attacker to cause a denial of service condition on an affected device. 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"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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