OPENSUSE-SU-2026:20479-1
Vulnerability from csaf_opensuse - Published: 2026-04-20 14:56 - Updated: 2026-09-17 17:29Summary
Security update for clamav
Severity
Moderate
Notes
Title of the patch: Security update for clamav
Description of the patch: This update for clamav fixes the following issues:
Update to clamav 1.5.2:
Security issue:
- CVE-2026-20031: improper error handling in the HTML CSS module when splitting UTF-8 strings can lead to denial of
service conditions via a crafted HTML file (bsc#1259207).
Non security issue:
- Support transactional updates (jsc#PED-14819).
Changelog:
* Fixed a possible infinite loop when scanning some JPEG files by
upgrading affected ClamAV dependency, a Rust image library.
* The CVD verification process will now ignore certificate files
in the CVD certs directory when the user lacks read permissions.
* Freshclam: Fix CLD verification bug with PrivateMirror option.
* Upgraded the Rust bytes dependency to a newer version to
resolve RUSTSEC-2026-0007 advisory.
* Fixed a possible crash caused by invalid pointer alignment on
some platforms.
Patchnames: openSUSE-Leap-16.0-487
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
5.3 (Medium)
Affected products
Recommended
25 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: openSUSE Leap 16.0:clamav-0:1.5.2-160000.1.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:clamav-0:1.5.2-160000.1.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:clamav-0:1.5.2-160000.1.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:clamav-0:1.5.2-160000.1.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:clamav-devel-0:1.5.2-160000.1.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:clamav-devel-0:1.5.2-160000.1.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:clamav-devel-0:1.5.2-160000.1.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:clamav-devel-0:1.5.2-160000.1.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:clamav-docs-html-0:1.5.2-160000.1.1.noarch | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:clamav-milter-0:1.5.2-160000.1.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:clamav-milter-0:1.5.2-160000.1.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:clamav-milter-0:1.5.2-160000.1.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:clamav-milter-0:1.5.2-160000.1.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:libclamav12-0:1.5.2-160000.1.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:libclamav12-0:1.5.2-160000.1.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:libclamav12-0:1.5.2-160000.1.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:libclamav12-0:1.5.2-160000.1.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:libclammspack0-0:1.5.2-160000.1.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:libclammspack0-0:1.5.2-160000.1.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:libclammspack0-0:1.5.2-160000.1.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:libclammspack0-0:1.5.2-160000.1.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:libfreshclam4-0:1.5.2-160000.1.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:libfreshclam4-0:1.5.2-160000.1.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:libfreshclam4-0:1.5.2-160000.1.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: openSUSE Leap 16.0:libfreshclam4-0:1.5.2-160000.1.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
References
8 references
{
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"text": "moderate"
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"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
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"tlp": {
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{
"category": "summary",
"text": "Security update for clamav",
"title": "Title of the patch"
},
{
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"text": "This update for clamav fixes the following issues:\n\nUpdate to clamav 1.5.2:\n\nSecurity issue:\n\n- CVE-2026-20031: improper error handling in the HTML CSS module when splitting UTF-8 strings can lead to denial of\n service conditions via a crafted HTML file (bsc#1259207).\n\nNon security issue:\n\n- Support transactional updates (jsc#PED-14819).\n\nChangelog:\n\n * Fixed a possible infinite loop when scanning some JPEG files by\n upgrading affected ClamAV dependency, a Rust image library.\n * The CVD verification process will now ignore certificate files\n in the CVD certs directory when the user lacks read permissions.\n * Freshclam: Fix CLD verification bug with PrivateMirror option.\n * Upgraded the Rust bytes dependency to a newer version to\n resolve RUSTSEC-2026-0007 advisory.\n * Fixed a possible crash caused by invalid pointer alignment on\n some platforms.\n",
"title": "Description of the patch"
},
{
"category": "details",
"text": "openSUSE-Leap-16.0-487",
"title": "Patchnames"
},
{
"category": "legal_disclaimer",
"text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
"title": "Terms of use"
}
],
"publisher": {
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"namespace": "https://www.suse.com/"
},
"references": [
{
"category": "external",
"summary": "SUSE ratings",
"url": "https://www.suse.com/support/security/rating/"
},
{
"category": "self",
"summary": "URL of this CSAF notice",
"url": "https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_20479-1.json"
},
{
"category": "self",
"summary": "SUSE Bug 1221954",
"url": "https://bugzilla.suse.com/1221954"
},
{
"category": "self",
"summary": "SUSE Bug 1258072",
"url": "https://bugzilla.suse.com/1258072"
},
{
"category": "self",
"summary": "SUSE Bug 1259207",
"url": "https://bugzilla.suse.com/1259207"
},
{
"category": "self",
"summary": "SUSE CVE CVE-2026-20031 page",
"url": "https://www.suse.com/security/cve/CVE-2026-20031/"
}
],
"title": "Security update for clamav",
"tracking": {
"current_release_date": "2026-09-17T17:29:46Z",
"generator": {
"date": "2026-04-20T14:56:29Z",
"engine": {
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"version": "1"
}
},
"id": "openSUSE-SU-2026:20479-1",
"initial_release_date": "2026-04-20T14:56:29Z",
"revision_history": [
{
"date": "2026-04-20T14:56:29Z",
"number": "1",
"summary": "Current version"
},
{
"date": "2026-09-16T20:32:35Z",
"number": "2",
"summary": "unknown changes"
},
{
"date": "2026-09-16T21:35:19Z",
"number": "3",
"summary": "unknown changes"
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{
"date": "2026-09-17T17:29:46Z",
"number": "4",
"summary": "unknown changes"
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],
"status": "final",
"version": "4"
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},
"product_tree": {
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{
"branches": [
{
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{
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"product_id": "clamav-0:1.5.2-160000.1.1.aarch64",
"product_identification_helper": {
"cpe": "cpe:2.3:a:clamav:clamav:1.5.2:*:*:*:*:*:*:*",
"purl": "pkg:rpm/suse/clamav@1.5.2-160000.1.1?arch=aarch64\u0026upstream=clamav-0:1.5.2-160000.1.1.src.rpm"
}
}
},
{
"category": "product_version",
"name": "clamav-devel-0:1.5.2-160000.1.1.aarch64",
"product": {
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},
{
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"name": "clamav-milter-0:1.5.2-160000.1.1.aarch64",
"product": {
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"product_identification_helper": {
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},
{
"category": "product_version",
"name": "libclamav12-0:1.5.2-160000.1.1.aarch64",
"product": {
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"product_id": "libclamav12-0:1.5.2-160000.1.1.aarch64",
"product_identification_helper": {
"cpe": "cpe:2.3:a:clamav:clamav:1.5.2:*:*:*:*:*:*:*",
"purl": "pkg:rpm/suse/libclamav12@1.5.2-160000.1.1?arch=aarch64\u0026upstream=clamav-0:1.5.2-160000.1.1.src.rpm"
}
}
},
{
"category": "product_version",
"name": "libclammspack0-0:1.5.2-160000.1.1.aarch64",
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"product_identification_helper": {
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},
{
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{
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"product_identification_helper": {
"cpe": "cpe:2.3:a:clamav:clamav:1.5.2:*:*:*:*:*:*:*",
"purl": "pkg:rpm/suse/clamav-milter@1.5.2-160000.1.1?arch=ppc64le\u0026upstream=clamav-0:1.5.2-160000.1.1.src.rpm"
}
}
},
{
"category": "product_version",
"name": "libclamav12-0:1.5.2-160000.1.1.ppc64le",
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"product_identification_helper": {
"cpe": "cpe:2.3:a:clamav:clamav:1.5.2:*:*:*:*:*:*:*",
"purl": "pkg:rpm/suse/libclamav12@1.5.2-160000.1.1?arch=ppc64le\u0026upstream=clamav-0:1.5.2-160000.1.1.src.rpm"
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{
"category": "product_version",
"name": "libclammspack0-0:1.5.2-160000.1.1.ppc64le",
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{
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"product_identification_helper": {
"cpe": "cpe:2.3:a:clamav:clamav:1.5.2:*:*:*:*:*:*:*",
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}
}
}
],
"category": "architecture",
"name": "ppc64le"
},
{
"branches": [
{
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"name": "clamav-0:1.5.2-160000.1.1.s390x",
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}
},
{
"category": "product_version",
"name": "clamav-devel-0:1.5.2-160000.1.1.s390x",
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{
"category": "product_version",
"name": "clamav-milter-0:1.5.2-160000.1.1.s390x",
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}
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},
{
"category": "product_version",
"name": "libclamav12-0:1.5.2-160000.1.1.s390x",
"product": {
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"product_identification_helper": {
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}
}
},
{
"category": "product_version",
"name": "libclammspack0-0:1.5.2-160000.1.1.s390x",
"product": {
"name": "libclammspack0-0:1.5.2-160000.1.1.s390x",
"product_id": "libclammspack0-0:1.5.2-160000.1.1.s390x",
"product_identification_helper": {
"cpe": "cpe:2.3:a:clamav:clamav:1.5.2:*:*:*:*:*:*:*",
"purl": "pkg:rpm/suse/libclammspack0@1.5.2-160000.1.1?arch=s390x\u0026upstream=clamav-0:1.5.2-160000.1.1.src.rpm"
}
}
},
{
"category": "product_version",
"name": "libfreshclam4-0:1.5.2-160000.1.1.s390x",
"product": {
"name": "libfreshclam4-0:1.5.2-160000.1.1.s390x",
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"product_identification_helper": {
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"purl": "pkg:rpm/suse/libfreshclam4@1.5.2-160000.1.1?arch=s390x\u0026upstream=clamav-0:1.5.2-160000.1.1.src.rpm"
}
}
}
],
"category": "architecture",
"name": "s390x"
},
{
"branches": [
{
"category": "product_version",
"name": "clamav-0:1.5.2-160000.1.1.x86_64",
"product": {
"name": "clamav-0:1.5.2-160000.1.1.x86_64",
"product_id": "clamav-0:1.5.2-160000.1.1.x86_64",
"product_identification_helper": {
"cpe": "cpe:2.3:a:clamav:clamav:1.5.2:*:*:*:*:*:*:*",
"purl": "pkg:rpm/suse/clamav@1.5.2-160000.1.1?arch=x86_64\u0026upstream=clamav-0:1.5.2-160000.1.1.src.rpm"
}
}
},
{
"category": "product_version",
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}
],
"threats": [
{
"category": "impact",
"date": "2026-04-20T14:56:29Z",
"details": "moderate"
}
],
"title": "CVE-2026-20031"
}
]
}
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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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