Vulnerability Monitor

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CVE-2015-1788

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.

Published

2015-06-12T19:59:01.600

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 4.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: PARTIAL
Exploitability Score

8.6

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-399
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application openssl openssl ≤ 0.9.8zf Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0 Yes
Application openssl openssl 1.0.0a Yes
Application openssl openssl 1.0.0b Yes
Application openssl openssl 1.0.0c Yes
Application openssl openssl 1.0.0d Yes
Application openssl openssl 1.0.0e Yes
Application openssl openssl 1.0.0f Yes
Application openssl openssl 1.0.0g Yes
Application openssl openssl 1.0.0h Yes
Application openssl openssl 1.0.0i Yes
Application openssl openssl 1.0.0j Yes
Application openssl openssl 1.0.0k Yes
Application openssl openssl 1.0.0l Yes
Application openssl openssl 1.0.0m Yes
Application openssl openssl 1.0.0n Yes
Application openssl openssl 1.0.0o Yes
Application openssl openssl 1.0.0p Yes
Application openssl openssl 1.0.0q Yes
Application openssl openssl 1.0.0r Yes
Application openssl openssl 1.0.1 Yes
Application openssl openssl 1.0.1 Yes
Application openssl openssl 1.0.1 Yes
Application openssl openssl 1.0.1 Yes
Application openssl openssl 1.0.1a Yes
Application openssl openssl 1.0.1b Yes
Application openssl openssl 1.0.1c Yes
Application openssl openssl 1.0.1d Yes
Application openssl openssl 1.0.1e Yes
Application openssl openssl 1.0.1f Yes
Application openssl openssl 1.0.1g Yes
Application openssl openssl 1.0.1h Yes
Application openssl openssl 1.0.1i Yes
Application openssl openssl 1.0.1j Yes
Application openssl openssl 1.0.1k Yes
Application openssl openssl 1.0.1l Yes
Application openssl openssl 1.0.1m Yes
Application openssl openssl 1.0.2 Yes
Application openssl openssl 1.0.2 Yes
Application openssl openssl 1.0.2a Yes
References