Vulnerability CVE-2017-9788


Published: 2017-07-13   Modified: 2017-07-21

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.

Vendor: Apache
Product: Httpd 
Version:
2.4.9
2.4.7
2.4.6
2.4.4
2.4.3
2.4.26
2.4.25
2.4.23
2.4.20
2.4.2
2.4.18
2.4.17
2.4.16
2.4.12
2.4.10
2.4.1
2.2.32
Product: Http server 
Version:
2.4.9
2.4.7
2.4.6
2.4.4
2.4.3
2.4.26
2.4.25
2.4.23
2.4.20
2.4.2
2.4.18
2.4.17
2.4.16
2.4.12
2.4.10
2.4.1
2.2.32

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.4/10
4.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
Partial

 References:
http://www.securityfocus.com/bid/99569
http://www.securitytracker.com/id/1038906
https://httpd.apache.org/security/vulnerabilities_22.html
https://httpd.apache.org/security/vulnerabilities_24.html
https://lists.apache.org/thread.html/0dd69204a6bd643cc4e9ccd008f07a9375525d977c6ebeb07a881afb@%3Cannounce.httpd.apache.org%3E

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