CVE-2018-15473
openssh - security update
5.3
MEDIUM
CVSS 3.1
EPSS 90.4%
Description
OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an invalid authenticating user until after the packet containing the request has been fully parsed, related to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c.
How to fix CVE-2018-15473
To remediate CVE-2018-15473, upgrade the affected package to a fixed version below.
- Alpine/openssh—upgrade to 7.7_p1-r4 or later
- —upgrade to 1:7.7p1-4 or later
- —upgrade to 1:6.7p1-5+deb8u5 or later
- —upgrade to 1:7.4p1-10+deb9u4 or later
Is CVE-2018-15473 being exploited?
Likely — EPSS is 90.4%, placing CVE-2018-15473 in the top tier of vulnerabilities by exploitation probability. Prioritise patching.
Affected packages (4)
- from 0, < 7.7_p1-r4
- from 0, < 1:7.7p1-4
- from 0, < 1:6.7p1-5+deb8u5
- from 0, < 1:7.4p1-10+deb9u4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |