SB2018112902 - Gentoo update for OpenSSL
Published: November 29, 2018
Security Bulletin ID
SB2018112902
Severity
Low
Patch available
YES
Number of vulnerabilities
3
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Improper authentication (CVE-ID: CVE-2018-0733)
The vulnerability allows a remote attacker to modify potentially sensitive information on the target system.Th weakness exists in the PA-RISC CRYPTO_memcmp function due to improper authentication. A remote attacker can write arbitrary data.
2) Information disclosure (CVE-ID: CVE-2018-0737)
The vulnerability allows a local attacker to obtain potentially sensitive information on the target system.The weakness exists in the RSA key generation algorithm's BN_mod_inverse() and BN_mod_exp_mont() functions due to a cache timing side channel attack. A local attacker can recover the private key.
3) Resource exhaustion (CVE-ID: CVE-2018-0739)
The vulnerability allows a remote attacker to cause DoS condition on the target system.The weakness exists due to excessive stack memory consumption. A remote attacker can cause the service to crash.
Remediation
Install update from vendor's website.