CVE-2021-46848: gnu libtasn1 – CVSS 9.1 · Watchpost

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CVE-2021-46848

CRITIQUE 9.1CVE-2021-46848 · Published 24/10/2022 · updated 14/10/2026

En bref

CVE-2021-46848 est une vulnérabilité CRITIQUE (CVSS 9.1) touchant libtasn1 (gnu).
Probabilité d'exploitation dans les 30 prochains jours (EPSS) : 2.8%, plus élevée que 86.6% des vulnérabilités.
Correctif : mettre à jour vers 4.19.0 ou plus récent.

Package	Affected versions	Patched versions
libtasn1 gnu	`< 4.19.0`	`4.19.0`

Description

GNU Libtasn1 before 4.19.0 has an ETYPE_OK off-by-one array size check that affects asn1_encode_simple_der.

References

bugs.gentoo.org/866237 · Issue Tracking
gitlab.com/gnutls/libtasn1/-/commit/44a700d2051a666235748970c2df047ff207aeb5 · Patch
gitlab.com/gnutls/libtasn1/-/issues/32 · Exploit
lists.debian.org/debian-lts-announce/2023/01/msg00003.html · Mailing List
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AV4SHDJF2XLB4CUPTBPQQ6CLGZ5LKXPZ
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ECM2ELTVRYV4BZ5L5GMIRQE27RFHPAQ6
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OGO7XST4EIJGX4B2ITZCYSWM24534BSU
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V5LWOGF7QRMNFRUCZY6TDYQJVFI6MOQ2
security.netapp.com/advisory/ntap-20221118-0006 · Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-398330.html

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