SB2004112302 - A denial of service via a crafted SSL/TLS handshake in OpenSSL
Published: November 23, 2004 Updated: August 2, 2016
Security Bulletin ID
SB2004112302
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) A denial of service via a crafted SSL/TLS handshake (CVE-ID: CVE-2004-0079)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to denial of service.
The vulnerability exists due to the do_change_cipher_spec function in OpenSSL. A remote unauthenticated attacker can cause a denial of service (crash) via a crafted SSL/TLS handshake that triggers a null dereference.
Successful exploitation of this vulnerability may result in denial of service.
Remediation
Install update from vendor's website.