4.3 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
0.578 Medium
EPSS
Percentile
97.7%
The BN_GF2m_mod_inv function in crypto/bn/bn_gf2m.c in OpenSSL before 0.9.8s, 1.0.0 before 1.0.0e, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b does not properly handle ECParameters structures in which the curve is over a malformed binary polynomial field, which allows remote attackers to cause a denial of service (infinite loop) via a session that uses an Elliptic Curve algorithm, as demonstrated by an attack against a server that supports client authentication.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | openssl | < 1.0.2b-1 | openssl_1.0.2b-1_all.deb |
Debian | 11 | all | openssl | < 1.0.2b-1 | openssl_1.0.2b-1_all.deb |
Debian | 10 | all | openssl | < 1.0.2b-1 | openssl_1.0.2b-1_all.deb |
Debian | 999 | all | openssl | < 1.0.2b-1 | openssl_1.0.2b-1_all.deb |
Debian | 13 | all | openssl | < 1.0.2b-1 | openssl_1.0.2b-1_all.deb |