SB2014101601 - Multiple vulnerabilities in OpenSSL
Published: October 16, 2014 Updated: November 8, 2022
Security Bulletin ID
SB2014101601
Severity
Medium
Patch available
YES
Number of vulnerabilities
4
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Forced SSLv3 support (CVE-ID: CVE-2014-3568)
The vulnerability allows a remote attacker to force SSLv3 usage.When OpenSSL is configured with "no-ssl3" as a build option, servers could accept and complete a SSL 3.0 handshake, and clients could be configured to send them. A remote attacker can force SSLv3 usage and perfom a variety of attacks against SSLv3 protocol
Successful exploitation of the vulnerability may allow an attacker to obtain potentially sensitive information.
2) Information disclosure (CVE-ID: CVE-2014-3566)
The vulnerability allows a remote attacker to perform MitM attack.The vulnerability exists due to usage of insecure SSLv3 protocol in OpenSSL. A remote attacker can force the current connection between user and server to be downgraded to SSLv3 protocol and then use padding-oracle attack on Cypher-block chaining (CBC) mode to decrypt encrypted communication.
Successful exploitation of the vulnerability may allow an attacker to read encrypted communications in clear text.
Note: The vulnerability is known as POODLE.
3) Session Ticket Memory Leak (CVE-ID: CVE-2014-3567)
The vulnerability allows a remote attacker to cause denial of service.The vulnerability exists due to an error when handling integrity of session tickets in OpenSSL. A remote attacker can send a large number of invalid session tickets and cause denial of service conditions.
Successful exploitation of the vulnerability may allow an attacker to perform a denial of service (DoS) attack.
4) SRTP Memory Leak (CVE-ID: CVE-2014-3513)
The vulnerability allows a remote attacker to obtain potentially sensitive information and cause denial of service.The vulnerability exists due to a parsing error within DTLS SRTP extension in OpenSSL. A remote attacker can send a carefully crafted handshake message and free up to 64k of memory or cause denial of service conditions.
Successful exploitation of the vulnerability may allow an attacker to obtain potentially sensitive data, stored in system memory, or cause the affected service to fail.
Remediation
Install update from vendor's website.