CVE-2018-1000027

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2018-1000027
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-1000027.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2018-1000027
Downstream
Related
Published
2018-02-09T23:29:00.870Z
Modified
2026-04-11T12:06:16.102485Z
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.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "last_affected": "14.04"
                }
            ],
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
            "source": "CPE_FIELD"
        },
        {
            "extracted_events": [
                {
                    "last_affected": "16.04"
                }
            ],
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
            "source": "CPE_FIELD"
        },
        {
            "extracted_events": [
                {
                    "last_affected": "17.10"
                }
            ],
            "cpe": "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*",
            "source": "CPE_FIELD"
        },
        {
            "extracted_events": [
                {
                    "last_affected": "7.0"
                }
            ],
            "cpe": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
            "source": "CPE_FIELD"
        },
        {
            "extracted_events": [
                {
                    "last_affected": "8.0"
                }
            ],
            "cpe": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
            "source": "CPE_FIELD"
        },
        {
            "extracted_events": [
                {
                    "last_affected": "9.0"
                }
            ],
            "cpe": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
            "source": "CPE_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/squid-cache/squid

Affected ranges

Type
GIT
Repo
https://github.com/squid-cache/squid
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
787b41c3b0ef9b7330032a1947c5f93bd050f32a
Database specific 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.0.23"
        }
    ],
    "cpe": "cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:*",
    "source": "CPE_FIELD"
}

Affected versions

Other
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
take00

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-1000027.json"