ecdsautils is a tiny collection of programs used for ECDSA (keygen, sign, verify). `ecdsa_verify_[prepare_]legacy()` does not check whether the signature values `r` and `s` are non-zero. A signature consisting only of zeroes is always considered valid, making it trivial to forge signatures. Requiring multiple signatures from different public keys does not mitigate the issue: `ecdsa_verify_list_legacy()` will accept an arbitrary number of such forged signatures. Both the `ecdsautil verify` CLI command and the libecdsautil library are affected. The issue has been fixed in ecdsautils 0.4.1. All older versions of ecdsautils (including versions before the split into a library and a CLI utility) are vulnerable.
References
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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Configuration 3 (hide)
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History
21 Nov 2024, 06:51
Type | Values Removed | Values Added |
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References | () https://github.com/freifunk-gluon/ecdsautils/commit/1d4b091abdf15ad7b2312535b5b95ad70f6dbd08 - Patch, Third Party Advisory | |
References | () https://github.com/freifunk-gluon/ecdsautils/commit/39b6d0a77414fd41614953a0e185c4eefa2f88ad - Patch, Third Party Advisory | |
References | () https://github.com/freifunk-gluon/ecdsautils/security/advisories/GHSA-qhcg-9ffp-78pw - Third Party Advisory | |
References | () https://lists.debian.org/debian-lts-announce/2022/05/msg00007.html - Mailing List, Third Party Advisory | |
References | () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4AKQH5WCBMJA3ODCSNERY6HVX4BX3ITG/ - | |
References | () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G2JT57AAFIEL7JDO2ZBV25JKYME5NU54/ - | |
References | () https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L7UBR3M4U3LA46BHXYSH7EN5GDG44GK7/ - | |
References | () https://www.debian.org/security/2022/dsa-5132 - Third Party Advisory | |
CVSS |
v2 : v3 : |
v2 : 5.0
v3 : 10.0 |
07 Nov 2023, 03:44
Type | Values Removed | Values Added |
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Information
Published : 2022-05-06 00:15
Updated : 2024-11-21 06:51
NVD link : CVE-2022-24884
Mitre link : CVE-2022-24884
CVE.ORG link : CVE-2022-24884
JSON object : View
Products Affected
debian
- debian_linux
fedoraproject
- fedora
ecdsautils_project
- ecdsautils
CWE
CWE-347
Improper Verification of Cryptographic Signature