Improper input validation in OpenSSL - CVE-2003-0544
Published: August 1, 2016 / Updated: November 22, 2018
Vulnerability identifier: #VU248
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2003-0544
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to incorrect tracking of the number of characters in certain ASN.1 inputs. A remote unauthenticated attacker can cause a denial of service by sending an SSL client certificate that causes OpenSSL to read past the end of a buffer when the long form is used.
Successful exploitation of this vulnerability may result in a denial of service.
The vulnerability exists due to incorrect tracking of the number of characters in certain ASN.1 inputs. A remote unauthenticated attacker can cause a denial of service by sending an SSL client certificate that causes OpenSSL to read past the end of a buffer when the long form is used.
Successful exploitation of this vulnerability may result in a denial of service.
Affected software
OpenSSL
Debian Linux
Debian Linux
How to mitigate CVE-2003-0544
Upgrade your version to OpenSSL 0.9.6k or OpenSSL 0.9.7c.