CVE-2019-18677
published 2019-11-26CVE-2019-18677: 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…
PriorityP433medium6.1CVSS 3.1
AVNACLPRNUIRSCCLILAN
EPSS
7.24%
93.6th percentile
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.
Affected
15 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | squid | < squid 4.9-1 (bookworm) | squid 4.9-1 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| squid-cache | squid | — | — |
| squid-cache | squid | 2.0 – 2.7 | — |
| squid-cache | squid | 3.0 – 3.5.28 | — |
| squid-cache | squid | 4.0 – 4.8 | — |
| squid | squid | >= 0 < 4.9-1 | 4.9-1 |
| squid | squid | >= 0 < 4.9-1 | 4.9-1 |
| squid | squid | >= 0 < 4.9-1 | 4.9-1 |
| squid | squid | >= 0 < 4.9-1 | 4.9-1 |
CVSS provenance
nvdv3.16.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
nvdv2.05.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:N
osv9.1CRITICAL
vendor_ubuntu9.1CRITICAL
vendor_debian6.1MEDIUM
vendor_redhat6.1MEDIUM
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GHSA
GHSA-mm65-p7g9-c5hr: An issue was discovered in Squid 3
ghsa_unreviewed·2022-05-24
CVE-2019-18677 [MEDIUM] CWE-352 GHSA-mm65-p7g9-c5hr: An issue was discovered in Squid 3
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.
OSV
squid, squid3 vulnerabilities
osv·2019-12-04·CVSS 9.1
CVE-2019-12523 [CRITICAL] squid, squid3 vulnerabilities
squid, squid3 vulnerabilities
Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly
handled certain URN requests. A remote attacker could possibly use this
issue to bypass access checks and access restricted servers. This issue was
only addressed in Ubuntu 19.04 and Ubuntu 19.10. (CVE-2019-12523)
Jeriko One discovered that Squid incorrectly handed URN responses. A remote
attacker could use this issue to cause Squid to crash, resulting in a
denial of service, or possibly execute arbitrary code. (CVE-2019-12526)
Alex Rousskov discovered that Squid incorrectly handled certain strings. A
remote attacker could possibly use this issue to cause Squid to crash,
resulting in a denial of service. This issue only affected Ubuntu 19.04.
(CVE-2019-12854)
Jeriko One and Kristoffer D
OSV
CVE-2019-18677: An issue was discovered in Squid 3
osv·2019-11-26·CVSS 6.1
CVE-2019-18677 [MEDIUM] CVE-2019-18677: An issue was discovered in Squid 3
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.
Ubuntu
Squid vulnerabilities
vendor_ubuntu·2019-12-04·CVSS 9.1
CVE-2019-12523 [CRITICAL] Squid vulnerabilities
Title: Squid vulnerabilities
Summary: Several security issues were fixed in Squid.
Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly
handled certain URN requests. A remote attacker could possibly use this
issue to bypass access checks and access restricted servers. This issue was
only addressed in Ubuntu 19.04 and Ubuntu 19.10. (CVE-2019-12523)
Jeriko One discovered that Squid incorrectly handed URN responses. A remote
attacker could use this issue to cause Squid to crash, resulting in a
denial of service, or possibly execute arbitrary code. (CVE-2019-12526)
Alex Rousskov discovered that Squid incorrectly handled certain strings. A
remote attacker could possibly use this issue to cause Squid to crash,
resulting in a denial of service. This issue only affected Ubunt
Red Hat
squid: Cross-Site Request Forgery issue in HTTP Request processing
vendor_redhat·2019-11-05·CVSS 6.1
CVE-2019-18677 [MEDIUM] CWE-79 squid: Cross-Site Request Forgery issue in HTTP Request processing
squid: Cross-Site Request Forgery issue in HTTP Request processing
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.
Mitigation: As per upstream:
Remove append_domain configuration settings from squid.conf.
The append_domain feature is redundant when /etc/resolv.conf is used to determine hostnames. However, please note that use of /etc/resolv.conf may require removal of dns_nameservers and other redundant DNS directives.
Package: squid (Red Hat Enterprise Linux 5) - Out of support scope
Package: squid (Red Hat Enterprise Linux 6) -
Debian
CVE-2019-18677: squid - An issue was discovered in Squid 3.x and 4.x through 4.8 when the append_domain ...
vendor_debian·2019·CVSS 6.1
CVE-2019-18677 [MEDIUM] CVE-2019-18677: squid - An issue was discovered in Squid 3.x and 4.x through 4.8 when the append_domain ...
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.
Scope: local
bookworm: resolved (fixed in 4.9-1)
bullseye: resolved (fixed in 4.9-1)
forky: resolved (fixed in 4.9-1)
sid: resolved (fixed in 4.9-1)
trixie: resolved (fixed in 4.9-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-18677 squid: Cross-Site Request Forgery issue in HTTP Request processing [fedora-all]
bugzilla·2019-11-08·CVSS 6.1
CVE-2019-18677 [MEDIUM] CVE-2019-18677 squid: Cross-Site Request Forgery issue in HTTP Request processing [fedora-all]
CVE-2019-18677 squid: Cross-Site Request Forgery issue in HTTP Request processing [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple s
Bugzilla
CVE-2019-18677 squid: Cross-Site Request Forgery issue in HTTP Request processing
bugzilla·2019-11-08·CVSS 6.1
CVE-2019-18677 [MEDIUM] CVE-2019-18677 squid: Cross-Site Request Forgery issue in HTTP Request processing
CVE-2019-18677 squid: Cross-Site Request Forgery issue in HTTP Request processing
Due to incorrect message processing Squid configured with append_domain can inappropriately redirect traffic to origins it should not be delivered to.
References:
http://www.squid-cache.org/Advisories/SQUID-2019_9.txt
Discussion:
Created squid tracking bugs for this issue:
Affects: fedora-all [bug 1770367]
---
Upstream patches:
http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-e5f1813a674848dde570f7920873e1071f96e0b4.patch
http://www.squid-cache.org/Versions/v4/changesets/squid-4-36492033ea4097821a4f7ff3ddcb971fbd1e8ba0.patch
---
External References:
http://www.squid-cache.org/Advisories/SQUID-2019_9.txt
---
Mitigation:
As per upstream:
Remove append_domain configuration settings
http://www.squid-cache.org/Advisories/SQUID-2019_9.txthttp://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-e5f1813a674848dde570f7920873e1071f96e0b4.patchhttp://www.squid-cache.org/Versions/v4/changesets/squid-4-36492033ea4097821a4f7ff3ddcb971fbd1e8ba0.patchhttps://bugzilla.suse.com/show_bug.cgi?id=1156328https://github.com/squid-cache/squid/pull/427https://lists.debian.org/debian-lts-announce/2019/12/msg00011.htmlhttps://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/https://usn.ubuntu.com/4213-1/https://www.debian.org/security/2020/dsa-4682http://www.squid-cache.org/Advisories/SQUID-2019_9.txthttp://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-e5f1813a674848dde570f7920873e1071f96e0b4.patchhttp://www.squid-cache.org/Versions/v4/changesets/squid-4-36492033ea4097821a4f7ff3ddcb971fbd1e8ba0.patchhttps://bugzilla.suse.com/show_bug.cgi?id=1156328https://github.com/squid-cache/squid/pull/427https://lists.debian.org/debian-lts-announce/2019/12/msg00011.htmlhttps://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTM74TU2BSLT5B3H4F3UDW53672NVLMC/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UEMOYTMCCFWK5NOXSXEIH5D2VGWVXR67/https://usn.ubuntu.com/4213-1/https://www.debian.org/security/2020/dsa-4682
2019-11-26
Published