CVE-2018-1000027
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2018-1000027
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-1000027.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2018-1000027
- Downstream
- Related
- Published
- 2018-02-09T23:29:00Z
- Modified
- 2025-10-21T04:25:36.587945Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
-
- http://www.squid-cache.org/Advisories/SQUID-2018_2.txt
- http://www.squid-cache.org/Versions/v3/3.5/changesets/SQUID-2018_2.patch
- http://www.squid-cache.org/Versions/v4/changesets/SQUID-2018_2.patch
- https://github.com/squid-cache/squid/pull/129/files
- https://lists.debian.org/debian-lts-announce/2018/02/msg00001.html
- https://lists.debian.org/debian-lts-announce/2018/02/msg00002.html
- https://usn.ubuntu.com/3557-1/
- https://www.debian.org/security/2018/dsa-4122
- https://usn.ubuntu.com/4059-2/
Affected packages
Git / github.com/squid-cache/squid
Affected ranges
- Type
- GIT
- Repo
- https://github.com/squid-cache/squid
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Affected versions
Other
BASIC_TPROXY4
HISTORIC_RELEASES
SQUID_3_0_PRE1
SQUID_3_0_PRE2
SQUID_3_0_PRE3
SQUID_3_0_PRE4
SQUID_3_0_PRE5
SQUID_3_0_PRE6
SQUID_3_0_PRE7
SQUID_3_0_RC1
SQUID_4_0_1
SQUID_4_0_10
SQUID_4_0_11
SQUID_4_0_12
SQUID_4_0_13
SQUID_4_0_14
SQUID_4_0_15
SQUID_4_0_16
SQUID_4_0_17
SQUID_4_0_18
SQUID_4_0_19
SQUID_4_0_2
SQUID_4_0_20
SQUID_4_0_21
SQUID_4_0_22
SQUID_4_0_3
SQUID_4_0_4
SQUID_4_0_5
SQUID_4_0_6
SQUID_4_0_7
SQUID_4_0_8
SQUID_4_0_9
for-libecap-v0p1
merge-candidate-3-v1
merge-candidate-3-v2
sourceformat-review-1
take00
take01
take02
take03
take04
take06
take07
take08
take09
take1
take2
BumpSslServerFirst.*
BumpSslServerFirst.take01
BumpSslServerFirst.take02
BumpSslServerFirst.take03
BumpSslServerFirst.take04
BumpSslServerFirst.take05
BumpSslServerFirst.take06
BumpSslServerFirst.take07
BumpSslServerFirst.take08
BumpSslServerFirst.take09
BumpSslServerFirst.take10