CVE-2019-18677

CVSS V2 Medium 5.8 CVSS V3 Medium 6.1
Description
An issue was discovered in Squid 3.x and 4.x through 4.8 when the append_domain setting is used (because the appended characters do not properly interact with hostname length restrictions). Due to incorrect message processing, it can inappropriately redirect traffic to origins it should not be delivered to.
Overview
  • CVE ID
  • CVE-2019-18677
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Modified
  • Published Version
  • 2019-11-26T17:15:12
  • Last Modified Date
  • 2020-07-11T00:15:14
Weakness Enumerations
CWE URL
CWE-352 http://cwe.mitre.org/data/definitions/352.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* 1 OR 2.0 2.7
cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* 1 OR 3.0 3.5.28
cpe:2.3:a:squid-cache:squid:*:*:*:*:*:*:*:* 1 OR 4.0 4.8
cpe:2.3:a:squid-cache:squid:2.7:stable2:*:*:*:*:*:* 1 OR
cpe:2.3:a:squid-cache:squid:2.7:stable3:*:*:*:*:*:* 1 OR
cpe:2.3:a:squid-cache:squid:2.7:stable4:*:*:*:*:*:* 1 OR
cpe:2.3:a:squid-cache:squid:2.7:stable5:*:*:*:*:*:* 1 OR
cpe:2.3:a:squid-cache:squid:2.7:stable6:*:*:*:*:*:* 1 OR
cpe:2.3:a:squid-cache:squid:2.7:stable7:*:*:*:*:*:* 1 OR
cpe:2.3:a:squid-cache:squid:2.7:stable8:*:*:*:*:*:* 1 OR
cpe:2.3:a:squid-cache:squid:2.7:stable9:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:N
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • NONE
  • Base Score
  • 5.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • CHANGED
  • Confidentiality Impact
  • LOW
  • Availability Impact
  • NONE
  • Base Score
  • 6.1
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 2.7
References
Reference URL Reference Tags
http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-e5f1813a674848dde570f7920873e1071f96e0b4.patch Release Notes
https://github.com/squid-cache/squid/pull/427 Patch Third Party Advisory
https://bugzilla.suse.com/show_bug.cgi?id=1156328 Issue Tracking Third Party Advisory
http://www.squid-cache.org/Versions/v4/changesets/squid-4-36492033ea4097821a4f7ff3ddcb971fbd1e8ba0.patch Release Notes
http://www.squid-cache.org/Advisories/SQUID-2019_9.txt Third Party Advisory
https://usn.ubuntu.com/4213-1/ Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/ Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/12/msg00011.html Third Party Advisory
https://www.debian.org/security/2020/dsa-4682
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-18677
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18677
History
Created Old Value New Value Data Type Notes
2022-05-10 16:41:04 Added to TrackCVE
2022-12-04 07:06:56 2019-11-26T17:15Z 2019-11-26T17:15:12 CVE Published Date updated
2022-12-04 07:06:56 2020-07-11T00:15:14 CVE Modified Date updated
2022-12-04 07:06:56 Modified Vulnerability Status updated