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opensslOpenSSLOPENSSL:CVE-2015-3196
HistoryDec 03, 2015 - 12:00 a.m.

Vulnerability in OpenSSL - Race condition handling PSK identify hint

2015-12-0300:00:00
www.openssl-library.org
21

CVSS2

4.3

Attack Vector

NETWORK

Attack 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

AI Score

6.5

Confidence

High

EPSS

0.015

Percentile

86.8%

If PSK identity hints are received by a multi-threaded client then the values are wrongly updated in the parent SSL_CTX structure. This can result in a race condition potentially leading to a double free of the identify hint data.

Found by Stephen Henson (OpenSSL).

Affected configurations

Vulners
Node
opensslopensslRange1.0.21.0.2d
OR
opensslopensslRange1.0.11.0.1p
OR
opensslopensslRange1.0.01.0.0t
VendorProductVersionCPE
opensslopenssl*cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*

CVSS2

4.3

Attack Vector

NETWORK

Attack 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

AI Score

6.5

Confidence

High

EPSS

0.015

Percentile

86.8%