SB20210120137 - Fedora 33 update for erlang
Published: January 20, 2021
Security Bulletin ID
SB20210120137
CSH 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 vulnerability.
1) Improper Authentication (CVE-ID: CVE-2020-35733)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a remote attacker to disclose sensitive information.
The vulnerability exists due to improper authentication in the ssl component when validating a certificate chain that includes a trusted root certificate. A remote attacker can present a fake certificate chain to disclose sensitive information.
The issue only occurs under conditions when the root certificate is sent in the chain.
Remediation
Install update from vendor's website.