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Vulnerability Details : CVE-2017-9788

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.
Publish Date : 2017-07-13 Last Update Date : 2018-01-04
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of ServiceObtain Information

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2017:2478: httpd security update (Important) oval:com.redhat.rhsa:def:20172478 unix
RHSA-2017:2479: httpd security update (Important) oval:com.redhat.rhsa:def:20172479 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2017-9788

# Product Type Vendor Product Version Update Edition Language
1 Application Apache Http Server 2.2.32 Version Details Vulnerabilities
2 Application Apache Http Server 2.4.1 Version Details Vulnerabilities
3 Application Apache Http Server 2.4.2 Version Details Vulnerabilities
4 Application Apache Http Server 2.4.3 Version Details Vulnerabilities
5 Application Apache Http Server 2.4.4 Version Details Vulnerabilities
6 Application Apache Http Server 2.4.6 Version Details Vulnerabilities
7 Application Apache Http Server 2.4.7 Version Details Vulnerabilities
8 Application Apache Http Server 2.4.9 Version Details Vulnerabilities
9 Application Apache Http Server 2.4.10 Version Details Vulnerabilities
10 Application Apache Http Server 2.4.12 Version Details Vulnerabilities
11 Application Apache Http Server 2.4.16 Version Details Vulnerabilities
12 Application Apache Http Server 2.4.17 Version Details Vulnerabilities
13 Application Apache Http Server 2.4.18 Version Details Vulnerabilities
14 Application Apache Http Server 2.4.20 Version Details Vulnerabilities
15 Application Apache Http Server 2.4.23 Version Details Vulnerabilities
16 Application Apache Http Server 2.4.25 Version Details Vulnerabilities
17 Application Apache Http Server 2.4.26 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apache Http Server 17

- References For CVE-2017-9788
GENTOO GLSA-201710-32 CONFIRM CONFIRM CONFIRM[email protected]
MLIST [announce] 20170713 CVE-2017-9788: Uninitialized memory reflection in mod_auth_digest CONFIRM
REDHAT RHSA-2017:2483
REDHAT RHSA-2017:3239
REDHAT RHSA-2017:2709
REDHAT RHSA-2017:2710
REDHAT RHSA-2017:3113
REDHAT RHSA-2017:3114
REDHAT RHSA-2017:3193
REDHAT RHSA-2017:3194
REDHAT RHSA-2017:3240
REDHAT RHSA-2017:2708
REDHAT RHSA-2017:2478
REDHAT RHSA-2017:2479
REDHAT RHSA-2017:3195
SECTRACK 1038906
BID 99569 Apache HTTP Server CVE-2017-9788 Memory Corruption Vulnerability Release Date:2017-08-16 CONFIRM

- Metasploit Modules Related To CVE-2017-9788

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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