CVE-2018-16841 is a denial-of-service vulnerability affecting Samba versions 4.3.0 through 4.7.11, 4.8.6, and 4.9.2 when configured for smart-card authentication. An authenticated attacker can trigger a double-free error in the KDC process by presenting a validly signed certificate with a mismatched principal, leading to KDC termination. Rated Medium severity (CVSS 6.5), this vulnerability requires prior authentication and has a high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 4.3.0, < 4.7.12CPE matchmatch criteria | cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | ||
>= 4.8.0, < 4.8.7CPE matchmatch criteria | cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | ||
>= 4.9.0, < 4.9.3CPE matchmatch criteria | cpe:2.3:a:samba:samba:*:*:*:*:*:*:*:* | ||
12.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* | ||
14.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
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