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CVE-2013-4208

Date: August 19, 2013

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.

Severity Score

Related Resources (10)

http://www.openwall.com/lists/oss-security/2013/08/06/11
https://people.canonical.com/~ubuntu-security/cve/CVE-2013-4208
http://www.debian.org/security/2013/dsa-2736
https://security-tracker.debian.org/tracker/CVE-2013-4208
http://www.chiark.greenend.org.uk/~sgtatham/putty/wishlist/private-key-not-wiped.html
http://lists.opensuse.org/opensuse-updates/2013-08/msg00035.html
https://nvd.nist.gov/vuln/detail/CVE-2013-4208
http://secunia.com/advisories/54533
http://secunia.com/advisories/54379
https://www.mend.io/vulnerability-database/CVE-2013-4208

Severity Score

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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