CVE-2019-19521
Critical
Description
libc in OpenBSD 6.6 allows authentication bypass via the -schallenge username, as demonstrated by smtpd, ldapd, or radiusd. This is related to gen/auth_subr.c and gen/authenticate.c in libc (and login/login.c and xenocara/app/xenodm/greeter/verify.c).
SeverityCritical
CVSS9.8
Exploit probability—
ProductOpenbsd
PublishedDec 5, 2019
First seenDec 5, 2019
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openbsd openbsd | 6.6 | — |
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