In Exim before 4.99.2, on systems using musl libc (not glibc), an attacker can crash the connection instance when malformed DNS data is present in PTR records. This is caused by a dn_expand oddity in octal printing.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 0, < 4.99.2CPE match | cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* | ||
< 4.99.2CPE matchmatch criteria | cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
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