CVE-2018-15599

MEDIUM5.3EPSS 0.52%

dropbear - security update

Published: 8/21/2018Modified: 4/28/2026

Description

The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated codebase.

Affected packages (3)

Alpine/dropbearfrom 0, < 2018.76-r2
Debian/dropbearfrom 0, < 2018.76-4
Debian/dropbearfrom 0, < 2014.65-1+deb8u3

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM5.3	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

References (2)

ADVISORYhttps://security.alpinelinux.org/vuln/CVE-2018-15599
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2018-15599