SB2017111312 - Fedora 27 update for openssl
Published: November 13, 2017 Updated: April 24, 2025
Security Bulletin ID
SB2017111312
Severity
Low
Patch available
YES
Number of vulnerabilities
2
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2017-3735)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to one-byte out-of-bounds read when parsing an IPAddressFamily extension in an X.509 certificate. A remote attacker can disguise text display of the certificate.
2) Carry propagation issue (CVE-ID: CVE-2017-3736)
The vulnerability allows a remote attacker to decrypt data.The vulnerability exists due to carry propagating bug in the x86_64 Montgomery squaring procedure (bn_sqrx8x_internal). A remote attacker can decrypt encrypted data. The vulnerability affects processors that support the BMI1, BMI2 and ADX extensions like Intel Broadwell (5th generation) and later or AMD Ryzen.
Remediation
Install update from vendor's website.