SB2015092506 - Debian update for openssl
Published: September 25, 2015
Security Bulletin ID
SB2015092506
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Vaudenay timing attack (CVE-ID: CVE-2003-0078)
The vulnerability allows a remote attacker to cause an information leak.The vulnerability exists due to ssl3_get_record in s3_pkt.c does not perform a MAC computation if an incorrect block cipher padding is used, which causes an information leak (timing discrepancy). A remote unauthenticated attacker can launch cryptographic attacks that rely on distinguishing between padding and MAC verification errors, possibly leading to extraction of the original plaintext, aka the "Vaudenay timing attack".
Successful exploitation of this vulnerability may result in disclosure of system information.
Remediation
Install update from vendor's website.