National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-1000027 Detail

Current Description

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.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 7.5 HIGH
Vector:  CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
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/msg00001.html Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00002.html Mailing List Third Party Advisory
https://usn.ubuntu.com/3557-1/ Third Party Advisory
https://usn.ubuntu.com/4059-2/
https://www.debian.org/security/2018/dsa-4122 Third Party Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-476 NULL Pointer Dereference NIST  

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:squid-cache:squid
     Show Matching CPE(s)
Up to (excluding)
4.0.23

Configuration 2 ( hide )
 cpe:/o:debian:debian_linux:7.0
     Show Matching CPE(s)
 cpe:/o:debian:debian_linux:8.0
     Show Matching CPE(s)
 cpe:/o:debian:debian_linux:9.0
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:/o:canonical:ubuntu_linux:14.04::~~lts~~~
     Show Matching CPE(s)
 cpe:/o:canonical:ubuntu_linux:16.04::~~lts~~~
     Show Matching CPE(s)
 cpe:/o:canonical:ubuntu_linux:17.10
     Show Matching CPE(s)


Change History

6 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-1000027
NVD Published Date:
02/09/2018
NVD Last Modified:
07/17/2019