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f5F5F5:K16938
HistoryNov 10, 2015 - 12:00 a.m.

K16938 : OpenSSL vulnerability CVE-2015-1788

2015-11-1000:00:00
my.f5.com
56

6 Medium

AI Score

Confidence

High

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

0.608 Medium

EPSS

Percentile

97.5%

Security Advisory Description

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. (CVE-2015-1788)
Impact
Remote attackers may be able to cause a denial-of-service (DoS) by way of a session that uses an Elliptic Curve algorithm against a server that supports client authentication.

6 Medium

AI Score

Confidence

High

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

0.608 Medium

EPSS

Percentile

97.5%