CVE-2021-20305
Vulnerability from cvelistv5
Published
2021-04-05 21:31
Modified
2024-08-03 17:37
Severity ?
EPSS score ?
0.07% (0.2317)
Summary
A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions (GOST DSA, EDDSA & ECDSA) result in the Elliptic Curve Cryptography point (ECC) multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allows an attacker to force an invalid signature, causing an assertion failure or possible validation. The highest threat to this vulnerability is to confidentiality, integrity, as well as system availability.
References
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1942533Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2021/09/msg00008.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQKWVVMAIDAJ7YAA3VVO32BHLDOH2E63/
secalert@redhat.comhttps://security.gentoo.org/glsa/202105-31Third Party Advisory
secalert@redhat.comhttps://security.netapp.com/advisory/ntap-20211022-0002/Third Party Advisory
secalert@redhat.comhttps://www.debian.org/security/2021/dsa-4933Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1942533Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/09/msg00008.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQKWVVMAIDAJ7YAA3VVO32BHLDOH2E63/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202105-31Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20211022-0002/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2021/dsa-4933Third Party Advisory
Impacted products
Vendor Product Version
n/a nettle Version: nettle 3.7.2
Show details on NVD website

To clipboard 

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