Information disclosure - CVE-2020-14929
Published: June 19, 2020 / Updated: August 3, 2020
Vulnerability identifier: #VU32981
CSH Severity: Medium
CVSSv4.0: 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/E:U/U:Green
CVE-ID: CVE-2020-14929
CWE-ID: CWE-200
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Software vendor:
Description
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
Alpine before 2.23 silently proceeds to use an insecure connection after a /tls is sent in certain circumstances involving PREAUTH, which is a less secure behavior than the alternative of closing the connection and letting the user decide what they would like to do.
Remediation
Install update from vendor's website.
External links
- http://mailman13.u.washington.edu/pipermail/alpine-info/2020-June/008989.html
- https://lists.debian.org/debian-lts-announce/2020/06/msg00025.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YFXQGKZZMP3VSTLZVO5Z7Z6USYIW37A6/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZJLY6JDVGDNAJZ3UQDWYWSDBWOAOXMNX/