vulnerability
Debian: CVE-2025-49812: apache2 -- security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 9 | (AV:N/AC:M/Au:N/C:C/I:C/A:N) | Jul 10, 2025 | Jul 14, 2025 | Sep 8, 2025 |
Severity
9
CVSS
(AV:N/AC:M/Au:N/C:C/I:C/A:N)
Published
Jul 10, 2025
Added
Jul 14, 2025
Modified
Sep 8, 2025
Description
In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade.
Only configurations using "SSLEngine optional" to enable TLS upgrades are affected. Users are recommended to upgrade to version 2.4.64, which removes support for TLS upgrade.
Solutions
debian-upgrade-apache2no-fix-debian-deb-package
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