SB2017091920 - Information disclosure in libgcrypt (Alpine package)
Published: September 19, 2017
Security Bulletin ID
SB2017091920
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) Information disclosure (CVE-ID: CVE-2017-0379)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
Libgcrypt before 1.8.1 does not properly consider Curve25519 side-channel attacks, which makes it easier for attackers to discover a secret key, related to cipher/ecc.c and mpi/ec.c.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=696f5be8d1756d7d79380dea33195ba98c85a833
- https://git.alpinelinux.org/aports/commit/?id=a7b9d19a1fc41bfd42e93e36100949f79ed0ea50
- https://git.alpinelinux.org/aports/commit/?id=3189f66bd0bf5c00883e527600243bc084badd61
- https://git.alpinelinux.org/aports/commit/?id=3b612fd1e8496523ee54b325d8e3b6de96bde290