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CVE-2013-4623

Good to know:

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Date: September 30, 2013

The x509parse_crt function in x509.h in PolarSSL 1.1.x before 1.1.7 and 1.2.x before 1.2.8 does not properly parse certificate messages during the SSL/TLS handshake, which allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a certificate message that contains a PEM encoded certificate.

Language: C

Severity Score

Related Resources (10)

https://polarssl.org/tech-updates/security-advisories/polarssl-security-advisory-2013-03
https://bugzilla.redhat.com/show_bug.cgi?id=997767
http://www.securityfocus.com/bid/61764
http://lists.fedoraproject.org/pipermail/package-announce/2013-September/116351.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115922.html
http://www.debian.org/security/2013/dsa-2782
https://nvd.nist.gov/vuln/detail/CVE-2013-4623
http://lists.fedoraproject.org/pipermail/package-announce/2013-September/115927.html
https://github.com/polarssl/polarssl/commit/1922a4e6aade7b1d685af19d4d9339ddb5c02859
https://www.mend.io/vulnerability-database/CVE-2013-4623

Severity Score

Weakness Type (CWE)

Input Validation

CWE-20

Top Fix

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CVSS v3.1

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

CVSS v2

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

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