CVE-2013-4208

The rsa_verify function in PuTTY before 0.63 (1) does not clear sensitive process memory after use and (2) does not free certain structures containing sensitive process memory, which might allow local users to discover private RSA and DSA keys.

Published Bysecalert@redhat.com

Published DateAug 19, 2013, 23:55

Weakness Type (CWE):CWE-200

CVSS Metrics

Base Score

2.1

Vector String

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

Base Severity

Version

2.0

Attack Vector (AV)

Attack Complexity (AC)

Privileges Required (PR)

User Interaction (UI)

Scope (S)

Confidentiality (C)

PARTIAL

Integrity (I)

NONE

Availability (A)

NONE

References

http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html
http://secunia.com/advisories/54379
http://secunia.com/advisories/54533
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped.html
http://www.debian.org/security/2013/dsa-2736
http://www.openwall.com/lists/oss-security/2013/08/06/11

Weakness Type (CWE):CWE-200

CVSS Metrics

Base Score

2.1

Vector String

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

Base Severity

Version

2.0

Attack Vector (AV)

Attack Complexity (AC)

Privileges Required (PR)

User Interaction (UI)

Scope (S)

Confidentiality (C)

PARTIAL

Integrity (I)

NONE

Availability (A)

NONE