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hackeroneGeeknikH1:73236
HistoryMar 15, 2015 - 12:00 a.m.

Internet Bug Bounty: X509_to_X509_REQ NULL pointer deref

2015-03-1500:00:00
geeknik
hackerone.com
36

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.022 Low

EPSS

Percentile

88.2%

X509_to_X509_REQ NULL pointer deref (CVE-2015-0288)

Severity: Low

The function X509_to_X509_REQ will crash with a NULL pointer dereference if the certificate key is invalid. This function is rarely used in practice.

This issue affects all current OpenSSL versions: 1.0.2, 1.0.1, 1.0.0 and 0.9.8.

OpenSSL 1.0.2 users should upgrade to 1.0.2a
OpenSSL 1.0.1 users should upgrade to 1.0.1m.
OpenSSL 1.0.0 users should upgrade to 1.0.0r.
OpenSSL 0.9.8 users should upgrade to 0.9.8zf.

This issue was discovered by Brian Carpenter and a fix developed by Stephen Henson of the OpenSSL development team.

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.022 Low

EPSS

Percentile

88.2%