Security update for squid SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2022:14908-1 Final 1 1 2022-03-14T14:17:16Z current 2022-03-14T14:17:16Z 2022-03-14T14:17:16Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for squid This update for squid fixes the following issues: - CVE-2020-15810: Fixed a HTTP Request Smuggling that could have resulted in cache poisoning (bsc#1175664). - CVE-2019-12523: Disabled urn parsing and parsing of unknown schemes (bsc#1156329). - CVE-2019-18676: Disabled urn parsing and parsing of unknown schemes (bsc#1156329). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). sleposp3-squid-14908,slessp4-squid-14908 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2022/suse-su-202214908-1/ Link for SUSE-SU-2022:14908-1 https://lists.suse.com/pipermail/sle-security-updates/2022-March/010430.html E-Mail link for SUSE-SU-2022:14908-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1156329 SUSE Bug 1156329 https://bugzilla.suse.com/1175664 SUSE Bug 1175664 https://www.suse.com/security/cve/CVE-2019-12523/ SUSE CVE CVE-2019-12523 page https://www.suse.com/security/cve/CVE-2019-18676/ SUSE CVE CVE-2019-18676 page https://www.suse.com/security/cve/CVE-2020-15810/ SUSE CVE CVE-2020-15810 page SUSE Linux Enterprise Point of Sale 11 SP3 SUSE Linux Enterprise Server 11 SP4-LTSS squid-2.7.STABLE5-2.12.30.6.1 squid-2.7.STABLE5-2.12.30.6.1 as a component of SUSE Linux Enterprise Point of Sale 11 SP3 squid-2.7.STABLE5-2.12.30.6.1 as a component of SUSE Linux Enterprise Server 11 SP4-LTSS 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. CVE-2019-12523 SUSE Linux Enterprise Point of Sale 11 SP3:squid-2.7.STABLE5-2.12.30.6.1 SUSE Linux Enterprise Server 11 SP4-LTSS:squid-2.7.STABLE5-2.12.30.6.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2022/suse-su-202214908-1/ https://www.suse.com/security/cve/CVE-2019-12523.html CVE-2019-12523 https://bugzilla.suse.com/1156329 SUSE Bug 1156329 https://bugzilla.suse.com/1165586 SUSE Bug 1165586 An issue was discovered in Squid 3.x and 4.x through 4.8. Due to incorrect input validation, there is a heap-based buffer overflow that can result in Denial of Service to all clients using the proxy. Severity is high due to this vulnerability occurring before normal security checks; any remote client that can reach the proxy port can trivially perform the attack via a crafted URI scheme. CVE-2019-18676 SUSE Linux Enterprise Point of Sale 11 SP3:squid-2.7.STABLE5-2.12.30.6.1 SUSE Linux Enterprise Server 11 SP4-LTSS:squid-2.7.STABLE5-2.12.30.6.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2022/suse-su-202214908-1/ https://www.suse.com/security/cve/CVE-2019-18676.html CVE-2019-18676 https://bugzilla.suse.com/1156329 SUSE Bug 1156329 https://bugzilla.suse.com/1165586 SUSE Bug 1165586 An issue was discovered in Squid before 4.13 and 5.x before 5.0.4. Due to incorrect data validation, HTTP Request Smuggling attacks may succeed against HTTP and HTTPS traffic. This leads to cache poisoning. This allows any client, including browser scripts, to bypass local security and poison the proxy cache and any downstream caches with content from an arbitrary source. When configured for relaxed header parsing (the default), Squid relays headers containing whitespace characters to upstream servers. When this occurs as a prefix to a Content-Length header, the frame length specified will be ignored by Squid (allowing for a conflicting length to be used from another Content-Length header) but relayed upstream. CVE-2020-15810 SUSE Linux Enterprise Point of Sale 11 SP3:squid-2.7.STABLE5-2.12.30.6.1 SUSE Linux Enterprise Server 11 SP4-LTSS:squid-2.7.STABLE5-2.12.30.6.1 critical To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2022/suse-su-202214908-1/ https://www.suse.com/security/cve/CVE-2020-15810.html CVE-2020-15810 https://bugzilla.suse.com/1175664 SUSE Bug 1175664