Medium
Gnutls: gnutls impacted by inefficient der decoding in libtasn1 leading to remote dos
Type: advisorySources: OSV
A flaw was found in GnuTLS, which relies on libtasn1 for ASN.1 data processing. Due to an inefficient algorithm in libtasn1, decoding certain DER-encoded certificate data can take excessive time, leading to increased resource consumption. This flaw allows a remote attacker to send a specially crafted certificate, causing GnuTLS to become unresponsive or slow, resulting in a denial-of-service condition.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2024-12243
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 8 Nov 2026, 03:38 UTC · Revision 1
Source evidence
Gnutls: gnutls impacted by inefficient der decoding in libtasn1 leading to remote dos
core-osv · Original sourcePublished 10 Feb 2025, 15:28 UTC
A flaw was found in GnuTLS, which relies on libtasn1 for ASN.1 data processing. Due to an inefficient algorithm in libtasn1, decoding certain DER-encoded certificate data can take excessive time, leading to increased resource consumption. This flaw allows a remote attacker to send a specially crafted certificate, causing GnuTLS to become unresponsive or slow, resulting in a denial-of-service condition.
osv:CVE-2024-12243
Complete source record
{
"id": "034824b2acf2326305e64e329811b5e91c00f5e5a89c65e962b2ea946c7f6dcf",
"url": "https://osv.dev/vulnerability/CVE-2024-12243",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Gnutls: gnutls impacted by inefficient der decoding in libtasn1 leading to remote dos",
"summary": "A flaw was found in GnuTLS, which relies on libtasn1 for ASN.1 data processing. Due to an inefficient algorithm in libtasn1, decoding certain DER-encoded certificate data can take excessive time, leading to increased resource consumption. This flaw allows a remote attacker to send a specially crafted certificate, causing GnuTLS to become unresponsive or slow, resulting in a denial-of-service condition.",
"evidence": "osv:CVE-2024-12243",
"products": [],
"severity": "medium",
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"aliases": [
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],
"modified": "2026-10-28T02:30:53.201072150Z",
"provider": "osv",
"references": [
"https://access.redhat.com/downloads/content/package-browser/",
"https://catalog.redhat.com/software/containers/",
"https://cert-portal.siemens.com/productcert/html/ssa-082556.html",
"https://cert-portal.siemens.com/productcert/html/ssa-202008.html",
"https://lists.debian.org/debian-lts-announce/2025/02/msg00027.html",
"https://access.redhat.com/errata/RHSA-2025:17361",
"https://access.redhat.com/errata/RHSA-2025:4051",
"https://access.redhat.com/errata/RHSA-2025:7076",
"https://access.redhat.com/errata/RHSA-2025:8020",
"https://access.redhat.com/errata/RHSA-2025:8385",
"https://access.redhat.com/security/cve/CVE-2024-12243",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/12xxx/CVE-2024-12243.json",
"https://nvd.nist.gov/vuln/detail/CVE-2024-12243",
"https://security.netapp.com/advisory/ntap-20250523-0002/",
"https://bugzilla.redhat.com/show_bug.cgi?id=2344615",
"https://gitlab.com/gnutls/gnutls/-/issues/1553",
"https://gitlab.com/gnutls/libtasn1/-/issues/52",
"https://gitlab.com/gnutls/gnutls/"
],
"provider_metadata": {
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}
},
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"evidence": "/id"
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"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 522281,
"published_at": "2025-02-10T15:28:10.328+00:00"
}