CVE-2021-46848 (GCVE-0-2021-46848)

Vulnerability from cvelistv5 – Published: 2022-10-24 00:00 – Updated: 2025-05-07 14:32
VLAI
Summary
GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Show details on NVD website
To clipboard 

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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://gitlab.com/gnutls/libtasn1/-/commit/44a700d2051a666235748970c2df047ff207aeb5\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://gitlab.com/gnutls/libtasn1/-/issues/32\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://bugs.gentoo.org/866237\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OGO7XST4EIJGX4B2ITZCYSWM24534BSU/\", \"name\": \"FEDORA-2022-061f857481\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AV4SHDJF2XLB4CUPTBPQQ6CLGZ5LKXPZ/\", \"name\": \"FEDORA-2022-3c933ffaca\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V5LWOGF7QRMNFRUCZY6TDYQJVFI6MOQ2/\", \"name\": \"FEDORA-2022-19056934a7\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20221118-0006/\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ECM2ELTVRYV4BZ5L5GMIRQE27RFHPAQ6/\", \"name\": \"FEDORA-2022-3f9ee1ad91\", \"tags\": [\"vendor-advisory\", \"x_transferred\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2023/01/msg00003.html\", \"name\": \"[debian-lts-announce] 20230109 [SECURITY] [DLA 3263-1] libtasn1-6 security update\", \"tags\": [\"mailing-list\", \"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:17:42.362Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 9.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"CRITICAL\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-46848\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-05-07T14:30:56.235688Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-193\", \"description\": \"CWE-193 Off-by-one Error\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-05-07T14:31:34.540Z\"}}], \"cna\": {\"affected\": [{\"vendor\": \"n/a\", \"product\": \"n/a\", \"versions\": [{\"status\": \"affected\", \"version\": \"n/a\"}]}], \"references\": [{\"url\": \"https://gitlab.com/gnutls/libtasn1/-/commit/44a700d2051a666235748970c2df047ff207aeb5\"}, {\"url\": \"https://gitlab.com/gnutls/libtasn1/-/issues/32\"}, {\"url\": \"https://bugs.gentoo.org/866237\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OGO7XST4EIJGX4B2ITZCYSWM24534BSU/\", \"name\": \"FEDORA-2022-061f857481\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AV4SHDJF2XLB4CUPTBPQQ6CLGZ5LKXPZ/\", \"name\": \"FEDORA-2022-3c933ffaca\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V5LWOGF7QRMNFRUCZY6TDYQJVFI6MOQ2/\", \"name\": \"FEDORA-2022-19056934a7\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://security.netapp.com/advisory/ntap-20221118-0006/\"}, {\"url\": \"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ECM2ELTVRYV4BZ5L5GMIRQE27RFHPAQ6/\", \"name\": \"FEDORA-2022-3f9ee1ad91\", \"tags\": [\"vendor-advisory\"]}, {\"url\": \"https://lists.debian.org/debian-lts-announce/2023/01/msg00003.html\", \"name\": \"[debian-lts-announce] 20230109 [SECURITY] [DLA 3263-1] libtasn1-6 security update\", \"tags\": [\"mailing-list\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"text\", \"description\": \"n/a\"}]}], \"providerMetadata\": {\"orgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"shortName\": \"mitre\", \"dateUpdated\": \"2023-01-09T00:00:00.000Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-46848\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-07T14:32:10.465Z\", \"dateReserved\": \"2022-10-24T00:00:00.000Z\", \"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"datePublished\": \"2022-10-24T00:00:00.000Z\", \"assignerShortName\": \"mitre\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.





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.


Detection rules are retrieved from Rulezet.