CVE-2017-9788

MEDIUM

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.

References

http://www.debian.org/security/2017/dsa-3913

http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html

http://www.securityfocus.com/bid/99569

http://www.securitytracker.com/id/1038906

https://access.redhat.com/errata/RHSA-2017:2478

https://access.redhat.com/errata/RHSA-2017:2479

https://access.redhat.com/errata/RHSA-2017:2483

https://access.redhat.com/errata/RHSA-2017:2708

https://access.redhat.com/errata/RHSA-2017:2709

https://access.redhat.com/errata/RHSA-2017:2710

https://access.redhat.com/errata/RHSA-2017:3113

https://access.redhat.com/errata/RHSA-2017:3114

https://access.redhat.com/errata/RHSA-2017:3193

https://access.redhat.com/errata/RHSA-2017:3194

https://access.redhat.com/errata/RHSA-2017:3195

https://access.redhat.com/errata/RHSA-2017:3239

https://access.redhat.com/errata/RHSA-2017:3240

https://httpd.apache.org/security/vulnerabilities_22.html

https://httpd.apache.org/security/vulnerabilities_24.html

https://lists.apache.org/thread.html/[email protected]%3Cannounce.httpd.apache.org%3E

https://security.gentoo.org/glsa/201710-32

https://security.netapp.com/advisory/ntap-20170911-0002/

https://support.apple.com/HT208221

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03908en_us

Details

Source: MITRE

Published: 2017-07-13

Updated: 2019-02-07

Type: CWE-20

Risk Information

CVSS v2.0

Base Score: 6.4

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:P

Impact Score: 4.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Impact Score: 5.2

Exploitability Score: 3.9

Severity: CRITICAL