SB2014072701 - Gentoo update for OpenSSL
Published: July 27, 2014
Security Bulletin ID
SB2014072701
Severity
Medium
Patch available
YES
Number of vulnerabilities
6
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Race condition (CVE-ID: CVE-2010-5298)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack or modify encrypted connection.The vulnerability exists due to a race condition in the ssl3_read_bytes() function in OpenSSL. A remote attacker can inject data across sessions or cause a denial of service
Successful exploitation of the vulnerability requires that SSL_MODE_RELEASE_BUFFERS is enabled.
2) Buffer overflow (CVE-ID: CVE-2014-0195)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.The vulnerability exists due to a boundary error in OpenSSL when processing DTLS fragments to an OpenSSL DTLS client or server. A remote attacker can send a specially crafted request to vulnerable application and cause the server to crash or execute arbitrary code on the target system.
Successful exploitation of the vulnerability requires that server support DTLS.
3) NULL pointer dereference (CVE-ID: CVE-2014-0198)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.The vulnerability exists due to a NULL pointer dereference error in the in the do_ssl3_write() function in OpenSSL. A remote attacker can send a specially crafted request to vulnerable application and trigger denial of service attack.
Successful exploitation of the vulnerability requires that SSL_MODE_RELEASE_BUFFERS is enabled.
4) Resource management error (CVE-ID: CVE-2014-0221)
The vulnerability allows a remote attacker to perform a denial of service attack.The vulnerability exists due to an error when processing invalid DTLS handshake. A remote attacker can initiate SSL/TLS connection to the affected application and trigger denial of service conditions.
5) Man-in-the-Middle attack (CVE-ID: CVE-2014-0224)
The vulnerability allows a remote attacker to decrypt encrypted connections.The vulnerability exists due to an error in OpenSSL. A remote attacker with ability to intercept network traffic can decrypt SSL connection and gain access to sensitive data.
6) Resource management error (CVE-ID: CVE-2014-3470)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.The vulnerability exists due to an error when processing ECDH ciphersuites in TLS clients. A remote attacker can send a specially crafted response to vulnerable OpenSSL client and cause the application to crash.
Remediation
Install update from vendor's website.