Vulnerability CVE-2017-7668


Published: 2017-06-19   Modified: 2017-06-20

Description:
The HTTP strict parsing changes added in Apache httpd 2.2.32 and 2.4.24 introduced a bug in token list parsing, which allows ap_find_token() to search past the end of its input string. By maliciously crafting a sequence of request headers, an attacker may be able to cause a segmentation fault, or to force ap_find_token() to return an incorrect value.

Type:

CWE-20

(Improper Input Validation)

Vendor: Apache
Product: Httpd 
Version:
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
2.2.31
2.2.30
2.2.3
2.2.29
2.2.27
2.2.26
2.2.25
2.2.24
2.2.23
2.2.22
2.2.21
2.2.20
2.2.2
2.2.19
2.2.18
2.2.17
2.2.16
2.2.15
2.2.14
2.2.13
2.2.12
2.2.11
2.2.0
Product: Http server 
Version:
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
2.2.31
2.2.30
2.2.3
2.2.29
2.2.27
2.2.26
2.2.25
2.2.24
2.2.23
2.2.22
2.2.21
2.2.20
2.2.2
2.2.19
2.2.18
2.2.17
2.2.16
2.2.15
2.2.14
2.2.13
2.2.12
2.2.11
2.2.0

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.5/10
6.4/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial

 References:
http://www.debian.org/security/2017/dsa-3896
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.securityfocus.com/bid/99137
http://www.securitytracker.com/id/1038711
https://access.redhat.com/errata/RHSA-2017:2479
https://access.redhat.com/errata/RHSA-2017:2483
https://access.redhat.com/errata/RHSA-2017:3193
https://access.redhat.com/errata/RHSA-2017:3194
https://lists.apache.org/thread.html/55a068b6a5eec0b3198ae7d96a7cb412352d0ffa7716612c5af3745b@%3Cdev.httpd.apache.org%3E
https://security.gentoo.org/glsa/201710-32
https://security.netapp.com/advisory/ntap-20180601-0002/
https://support.apple.com/HT208221
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03821en_us

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