CVE-2017-9788
CRITICAL9.1EPSS 49.5%apache2 - security update
Published: 7/13/2017Modified: 4/28/2026
Description
In Apache httpd before 2.2.34 and 2.4.x before 2.4.27, the value placeholder in [Proxy-]Authorization headers of type 'Digest' was not initialized or reset before or between successive key=value assignments by mod_auth_digest. Providing an initial key with no '=' assignment could reflect the stale value of uninitialized pool memory used by the prior request, leading to leakage of potentially confidential information, and a segfault in other cases resulting in denial of service.
Affected packages (3)
- Debian/apache2from 0, < 2.4.27-1
- Debian/apache2from 0, < 2.2.22-13+deb7u10
- Debian/apache2from 0, < 2.4.10-10+deb8u10
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |