7.5

CVE-2018-1000027

The Squid Software Foundation Squid HTTP Caching Proxy version prior to version 4.0.23 contains a NULL Pointer Dereference vulnerability in HTTP Response X-Forwarded-For header processing that can result in Denial of Service to all clients of the proxy. This attack appear to be exploitable via Remote HTTP server responding with an X-Forwarded-For header to certain types of HTTP request. This vulnerability appears to have been fixed in 4.0.23 and later.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Squid-cache ≫ Squid Version < 4.0.23
Debian ≫ Debian Linux Version 7.0
Debian ≫ Debian Linux Version 8.0
Debian ≫ Debian Linux Version 9.0
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 17.10
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 12.91% 0.959
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NIST 5 10 2.9
AV:N/AC:L/Au:N/C:N/I:N/A:P
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://usn.ubuntu.com/3557-1/
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00001.html
Third Party Advisory
Mailing List
https://usn.ubuntu.com/4059-2/
https://www.debian.org/security/2018/dsa-4122
Third Party Advisory
http://www.squid-cache.org/Advisories/SQUID-2018_2.txt
Patch
Vendor Advisory
http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2018_2.patch
Patch
Vendor Advisory
http://www.squid-cache.org/Versions/v4/changesets/SQUID-2018_2.patch
Patch
Vendor Advisory
https://github.com/squid-cache/squid/pull/129/files
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00002.html
Third Party Advisory
Mailing List