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
Link | Resource |
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https://bugzilla.redhat.com/show_bug.cgi?id=1942533 | Issue Tracking Patch Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2021/09/msg00008.html | Mailing List Third Party Advisory |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MQKWVVMAIDAJ7YAA3VVO32BHLDOH2E63/ | |
https://security.gentoo.org/glsa/202105-31 | Third Party Advisory |
https://security.netapp.com/advisory/ntap-20211022-0002/ | Third Party Advisory |
https://www.debian.org/security/2021/dsa-4933 | Third Party Advisory |
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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Configuration 4 (hide)
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History
07 Nov 2023, 03:29
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Information
Published : 2021-04-05 22:15
Updated : 2024-02-28 18:28
NVD link : CVE-2021-20305
Mitre link : CVE-2021-20305
CVE.ORG link : CVE-2021-20305
JSON object : View
Products Affected
debian
- debian_linux
netapp
- active_iq_unified_manager
- ontap_select_deploy_administration_utility
nettle_project
- nettle
fedoraproject
- fedora
redhat
- enterprise_linux