CVE-2024-12243
Full vulnerability record from the local CVENow database.
Description
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.
Severity
MEDIUM
CVSS score
5.3
(v3.1)
Vulnerability status
Deferred
Source identifier
Published
2025-02-10 16:15:37.423000
Last modified
2026-10-22 22:17:40.980000
View original CVE JSON
{
"id": "CVE-2024-12243",
"sourceIdentifier": "[email protected]",
"published": "2025-02-10T16:15:37.423",
"lastModified": "2026-10-22T22:17:40.980",
"vulnStatus": "Deferred",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "Se encontró una falla en GnuTLS, que depende de libtasn1 para el procesamiento de datos ASN.1. Debido a un algoritmo ineficiente en libtasn1, la decodificación de ciertos datos de certificados codificados en DER puede llevar demasiado tiempo, lo que genera un mayor consumo de recursos. Esta falla permite que un atacante remoto envíe un certificado especialmente manipulado, lo que hace que GnuTLS deje de responder o funcione lentamente, lo que resulta en una condición de denegación de servicio."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"defaultStatus": "unknown",
"collectionURL": "https://gitlab.com/gnutls/gnutls/",
"packageName": "gnutls",
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{
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},
{
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},
{
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{
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}
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},
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{
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{
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"packageName": "gnutls",
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},
{
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"packageName": "gnutls",
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},
{
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{
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{
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],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"availabilityImpact": "LOW"
},
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}
],
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"ssvcData": {
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"id": "CVE-2024-12243",
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{
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{
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}
],
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}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-407"
}
]
}
],
"references": [
{
"url": "https://access.redhat.com/errata/RHSA-2025:17361",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2025:4051",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2025:7076",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2025:8020",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/errata/RHSA-2025:8385",
"source": "[email protected]"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2024-12243",
"source": "[email protected]"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2344615",
"source": "[email protected]"
},
{
"url": "https://gitlab.com/gnutls/gnutls/-/issues/1553",
"source": "[email protected]"
},
{
"url": "https://gitlab.com/gnutls/libtasn1/-/issues/52",
"source": "[email protected]"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/02/msg00027.html",
"source": "af854a3a-2127-422b-91ae-364da2661108"
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{
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{
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{
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}