vulnerability
FreeBSD: VID-89C668D5-2F80-11F0-9632-641C67A117D8: www/varnish7 -- Request Smuggling Attack
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:M/Au:N/C:N/I:C/A:C) | May 12, 2025 | May 14, 2025 | May 22, 2025 |
Severity
9
CVSS
(AV:N/AC:M/Au:N/C:N/I:C/A:C)
Published
May 12, 2025
Added
May 14, 2025
Modified
May 22, 2025
Description
The Varnish Development Team reports:
A client-side desync vulnerability can be triggered in Varnish Cache
and Varnish Enterprise. This vulnerability can be triggered under
specific circumstances involving malformed HTTP/1 requests.
An attacker can abuse a flaw in Varnish's handling of chunked
transfer encoding which allows certain malformed HTTP/1 requests
to exploit improper framing of the message body to smuggle additional
requests. Specifically, Varnish incorrectly permits CRLF to be
skipped to delimit chunk boundaries.
Solution
freebsd-upgrade-package-varnish7
References
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