CVE-2016-8743

Public on 2017-01-19
Modified on 2017-08-04
Description
It was discovered that the HTTP parser in httpd incorrectly allowed certain characters not permitted by the HTTP protocol specification to appear unencoded in HTTP request headers. If httpd was used in conjunction with a proxy or backend server that interpreted those characters differently, a remote attacker could possibly use this flaw to inject data into HTTP responses, resulting in proxy cache poisoning.
Severity
Medium
CVSS v3 Base Score
4.0
See breakdown

Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 httpd24 2017-08-03 18:53 ALAS-2017-863
Amazon Linux 1 httpd24 2017-01-19 16:30 ALAS-2017-785
Amazon Linux 1 httpd 2017-06-22 19:25 ALAS-2017-851
Amazon Linux 1 httpd24 2017-08-03 18:53 ALAS-2017-863
Amazon Linux 1 httpd24 2017-01-19 16:30 ALAS-2017-785

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv2 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
Amazon Linux CVSSv3 4.0 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
NVD CVSSv2 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N
NVD CVSSv3 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N