Security update for squid SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2019:3067-1 Final 1 1 2019-11-26T09:20:35Z current 2019-11-26T09:20:35Z 2019-11-26T09:20:35Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for squid This update for squid to version 4.9 fixes the following issues: Security issues fixed: - CVE-2019-13345: Fixed multiple cross-site scripting vulnerabilities in cachemgr.cgi (bsc#1140738). - CVE-2019-12526: Fixed potential remote code execution during URN processing (bsc#1156326). - CVE-2019-12523,CVE-2019-18676: Fixed multiple improper validations in URI processing (bsc#1156329). - CVE-2019-18677: Fixed Cross-Site Request Forgery in HTTP Request processing (bsc#1156328). - CVE-2019-18678: Fixed incorrect message parsing which could have led to HTTP request splitting issue (bsc#1156323). - CVE-2019-18679: Fixed information disclosure when processing HTTP Digest Authentication (bsc#1156324). Other issues addressesd: * Fixed DNS failures when peer name was configured with any upper case characters * Fixed several rock cache_dir corruption issues The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2019-3067,SUSE-SLE-SERVER-12-SP5-2019-3067 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2019/suse-su-20193067-1/ Link for SUSE-SU-2019:3067-1 https://lists.suse.com/pipermail/sle-security-updates/2019-November/006179.html E-Mail link for SUSE-SU-2019:3067-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1140738 SUSE Bug 1140738 https://bugzilla.suse.com/1156323 SUSE Bug 1156323 https://bugzilla.suse.com/1156324 SUSE Bug 1156324 https://bugzilla.suse.com/1156326 SUSE Bug 1156326 https://bugzilla.suse.com/1156328 SUSE Bug 1156328 https://bugzilla.suse.com/1156329 SUSE Bug 1156329 https://www.suse.com/security/cve/CVE-2019-12523/ SUSE CVE CVE-2019-12523 page https://www.suse.com/security/cve/CVE-2019-12526/ SUSE CVE CVE-2019-12526 page https://www.suse.com/security/cve/CVE-2019-13345/ SUSE CVE CVE-2019-13345 page https://www.suse.com/security/cve/CVE-2019-18676/ SUSE CVE CVE-2019-18676 page https://www.suse.com/security/cve/CVE-2019-18677/ SUSE CVE CVE-2019-18677 page https://www.suse.com/security/cve/CVE-2019-18678/ SUSE CVE CVE-2019-18678 page https://www.suse.com/security/cve/CVE-2019-18679/ SUSE CVE CVE-2019-18679 page SUSE Linux Enterprise Server 12 SP5 SUSE Linux Enterprise Server for SAP Applications 12 SP5 squid-4.9-4.3.2 squid-4.9-4.3.2 as a component of SUSE Linux Enterprise Server 12 SP5 squid-4.9-4.3.2 as a component of SUSE Linux Enterprise Server for SAP Applications 12 SP5 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 Server 12 SP5:squid-4.9-4.3.2 SUSE Linux Enterprise Server for SAP Applications 12 SP5:squid-4.9-4.3.2 important 6.4 AV:N/AC:L/Au:N/C:P/I:P/A:N 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/2019/suse-su-20193067-1/ 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 before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fails to ensure that the response can fit within the buffer. This leads to attacker controlled data overflowing in the heap. CVE-2019-12526 SUSE Linux Enterprise Server 12 SP5:squid-4.9-4.3.2 SUSE Linux Enterprise Server for SAP Applications 12 SP5:squid-4.9-4.3.2 important 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P 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/2019/suse-su-20193067-1/ https://www.suse.com/security/cve/CVE-2019-12526.html CVE-2019-12526 https://bugzilla.suse.com/1156326 SUSE Bug 1156326 The cachemgr.cgi web module of Squid through 4.7 has XSS via the user_name or auth parameter. CVE-2019-13345 SUSE Linux Enterprise Server 12 SP5:squid-4.9-4.3.2 SUSE Linux Enterprise Server for SAP Applications 12 SP5:squid-4.9-4.3.2 moderate 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N 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/2019/suse-su-20193067-1/ https://www.suse.com/security/cve/CVE-2019-13345.html CVE-2019-13345 https://bugzilla.suse.com/1140738 SUSE Bug 1140738 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 Server 12 SP5:squid-4.9-4.3.2 SUSE Linux Enterprise Server for SAP Applications 12 SP5:squid-4.9-4.3.2 important 5 AV:N/AC:L/Au:N/C:N/I:N/A:P 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/2019/suse-su-20193067-1/ 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 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. CVE-2019-18677 SUSE Linux Enterprise Server 12 SP5:squid-4.9-4.3.2 SUSE Linux Enterprise Server for SAP Applications 12 SP5:squid-4.9-4.3.2 important 5.8 AV:N/AC:M/Au:N/C:P/I:P/A:N 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/2019/suse-su-20193067-1/ https://www.suse.com/security/cve/CVE-2019-18677.html CVE-2019-18677 https://bugzilla.suse.com/1156328 SUSE Bug 1156328 An issue was discovered in Squid 3.x and 4.x through 4.8. It allows attackers to smuggle HTTP requests through frontend software to a Squid instance that splits the HTTP Request pipeline differently. The resulting Response messages corrupt caches (between a client and Squid) with attacker-controlled content at arbitrary URLs. Effects are isolated to software between the attacker client and Squid. There are no effects on Squid itself, nor on any upstream servers. The issue is related to a request header containing whitespace between a header name and a colon. CVE-2019-18678 SUSE Linux Enterprise Server 12 SP5:squid-4.9-4.3.2 SUSE Linux Enterprise Server for SAP Applications 12 SP5:squid-4.9-4.3.2 moderate 5 AV:N/AC:L/Au:N/C:N/I:P/A:N 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/2019/suse-su-20193067-1/ https://www.suse.com/security/cve/CVE-2019-18678.html CVE-2019-18678 https://bugzilla.suse.com/1156323 SUSE Bug 1156323 An issue was discovered in Squid 2.x, 3.x, and 4.x through 4.8. Due to incorrect data management, it is vulnerable to information disclosure when processing HTTP Digest Authentication. Nonce tokens contain the raw byte value of a pointer that sits within heap memory allocation. This information reduces ASLR protections and may aid attackers isolating memory areas to target for remote code execution attacks. CVE-2019-18679 SUSE Linux Enterprise Server 12 SP5:squid-4.9-4.3.2 SUSE Linux Enterprise Server for SAP Applications 12 SP5:squid-4.9-4.3.2 moderate 5 AV:N/AC:L/Au:N/C:P/I:N/A:N 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/2019/suse-su-20193067-1/ https://www.suse.com/security/cve/CVE-2019-18679.html CVE-2019-18679 https://bugzilla.suse.com/1156324 SUSE Bug 1156324