CVE-2019-12523

CVE	CVE-2019-12523
State	PUBLIC
Assigner	[email protected]
Source Priority	CVE Program / NVD first with legacy fallback
Published	2019-11-26 17:15:00 UTC
Updated	2023-11-07 03:03:00 UTC
Description	An issue was discovered in Squid before 4.9. When handling a URN request, a corresponding HTTP request is made. This HTTP request doesn't go through the access checks that incoming HTTP requests go through. This causes all access checks to be bypassed and allows access to restricted HTTP servers, e.g., an attacker can connect to HTTP servers that only listen on localhost.

Problem Types: NVD-CWE-noinfo

Type	Vendor	Product	Version	Update	Edition	Language
Operating System	Canonical	Ubuntu Linux	16.04	All	All	All
Operating System	Canonical	Ubuntu Linux	16.04	All	All	All
Operating System	Canonical	Ubuntu Linux	18.04	All	All	All
Operating System	Canonical	Ubuntu Linux	19.04	All	All	All
Operating System	Canonical	Ubuntu Linux	19.10	All	All	All
Operating System	Canonical	Ubuntu Linux	16.04	All	All	All
Operating System	Canonical	Ubuntu Linux	18.04	All	All	All
Operating System	Canonical	Ubuntu Linux	19.04	All	All	All
Operating System	Canonical	Ubuntu Linux	19.10	All	All	All
Operating System	Debian	Debian Linux	10.0	All	All	All
Operating System	Debian	Debian Linux	9.0	All	All	All
Operating System	Fedoraproject	Fedora	30	All	All	All
Operating System	Fedoraproject	Fedora	31	All	All	All
Operating System	Fedoraproject	Fedora	30	All	All	All
Operating System	Fedoraproject	Fedora	31	All	All	All
Operating System	Opensuse	Leap	15.0	All	All	All
Operating System	Opensuse	Leap	15.0	All	All	All
Application	Squid-cache	Squid	All	All	All	All
Application	Squid-cache	Squid	All	All	All	All

Reference	Source	Link	Tags
[SECURITY] [DLA 2278-1] squid3 security update	MLIST	lists.debian.org
[security-announce] openSUSE-SU-2019:2541-1: important: Security update	CONFIRM	lists.opensuse.org	Mailing List, Third Party Advisory
[SECURITY] Fedora 30 Update: squid-4.9-2.fc30 - package-announce - Fedora Mailing-Lists	FEDORA	lists.fedoraproject.org	Mailing List, Third Party Advisory
USN-4446-1: Squid vulnerabilities \| Ubuntu security notices \| Ubuntu	UBUNTU	usn.ubuntu.com
USN-4213-1: Squid vulnerabilities \| Ubuntu security notices \| Ubuntu	UBUNTU	usn.ubuntu.com	Third Party Advisory
[SECURITY] Fedora 31 Update: squid-4.9-2.fc31 - package-announce - Fedora Mailing-Lists		lists.fedoraproject.org
[SECURITY] Fedora 31 Update: squid-4.9-2.fc31 - package-announce - Fedora Mailing-Lists	FEDORA	lists.fedoraproject.org	Mailing List, Third Party Advisory
Debian -- Security Information -- DSA-4682-1 squid	DEBIAN	www.debian.org
[SECURITY] Fedora 30 Update: squid-4.9-2.fc30 - package-announce - Fedora Mailing-Lists		lists.fedoraproject.org
Bug 1156329 – VUL-0: CVE-2019-12523,CVE-2019-18676: squid,squid3: improper input validation can lead to access to restricted HTTP servers or denial of service	CONFIRM	bugzilla.suse.com	Issue Tracking, Third Party Advisory
www.squid-cache.org/Advisories/SQUID-2019_8.txt	CONFIRM	www.squid-cache.org	Third Party Advisory
CVE Program record	CVE.ORG	www.cve.org	canonical
NVD vulnerability detail	NVD	nvd.nist.gov	canonical, analysis

No vendor comments have been submitted for this CVE.

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160118 Oracle Enterprise Linux Security Update for squid (ELSA-2022-22254)
296075 Oracle Solaris 11.4 Support Repository Update (SRU) 21.69.0 Missing (CPUAPR2020)
355319 Amazon Linux Security Advisory for squid : ALAS2-2023-2065
355348 Amazon Linux Security Advisory for squid : ALAS-2023-1757
356277 Amazon Linux Security Advisory for squid : ALASSQUID4-2023-007
377360 Alibaba Cloud Linux Security Update for squid:4 (ALINUX3-SA-2022:0124)
670223 EulerOS Security Update for squid (EulerOS-SA-2021-1852)
753154 SUSE Enterprise Linux Security Update for squid (SUSE-SU-2022:14908-1)
940034 AlmaLinux Security Update for squid:4 (ALSA-2020:4743)
960867 Rocky Linux Security Update for squid:4 (RLSA-2020:4743)