USN-4446-1 introduced a regression in Squid.. =========================================================================Ubuntu Security Notice USN-4446-2 August 27, 2020 squid3 regression ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: USN-4446-1 introduced a regression in Squid. Software Description: - squid3: Web proxy cache server Details: USN-4446-1 fixed vulnerabilities in Squid. The update introduced a regression when using Squid with the icap or ecap protocols. This update fixes the problem. We apologize for the inconvenience. Original advisory details: Jeriko One discovered that Squid incorrectly handled caching certain requests. A remote attacker could possibly use this issue to perform cache-injection attacks or gain access to reverse proxy features such as ESI. (CVE-2019-12520) 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. (CVE-2019-12523) Jeriko One discovered that Squid incorrectly handled URL decoding. A remote attacker could possibly use this issue to bypass certain rule checks. (CVE-2019-12524) Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly handled input validation. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2019-18676) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: squid 3.5.27-1ubuntu1.8 Ubuntu 16.04 LTS: squid 3.5.12-1ubuntu7.13 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-4446-2 https://ubuntu.com/security/notices/USN-4446-1 https://bugs.launchpad.net/ubuntu/+source/squid3/+bug/1890265 Package Information: https://launchpad.net/ubuntu/+source/squid3/3.5.27-1ubuntu1.8 https://launchpad.net/ubuntu/+source/squid3/3.5.12-1ubuntu7.13 . Ubuntu Security Notice USN-4446-2 addresses a regression issue in Squid that impacts several versions, highlighting essential update information for users.. Squid Update, Ubuntu Security, Cache Injection, Regression Fix. . LinuxSecurity.com Team
Several security issues were fixed in Squid.. =========================================================================Ubuntu Security Notice USN-4446-1 August 03, 2020 squid3 vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 18.04 LTS - Ubuntu 16.04 LTS Summary: Several security issues were fixed in Squid. Software Description: - squid3: Web proxy cache server Details: Jeriko One discovered that Squid incorrectly handled caching certain requests. A remote attacker could possibly use this issue to perform cache-injection attacks or gain access to reverse proxy features such as ESI. (CVE-2019-12520) 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. (CVE-2019-12523) Jeriko One discovered that Squid incorrectly handled URL decoding. A remote attacker could possibly use this issue to bypass certain rule checks. (CVE-2019-12524) Jeriko One and Kristoffer Danielsson discovered that Squid incorrectly handled input validation. A remote attacker could use this issue to cause Squid to crash, resulting in a denial of service. (CVE-2019-18676) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 LTS: squid 3.5.27-1ubuntu1.7 Ubuntu 16.04 LTS: squid 3.5.12-1ubuntu7.12 In general, a standard system update will make all the necessary changes. References: https://ubuntu.com/security/notices/USN-4446-1 CVE-2019-12520, CVE-2019-12523, CVE-2019-12524, CVE-2019-18676 Package Information: https://launchpad.net/ubuntu/+source/squid3/3.5.27-1ubuntu1.7 https://launchpad.net/ubuntu/+source/squid3/3.5.12-1ubuntu7.12 . Multiple vulnerabilities resolved in Squid for Ubuntu, targeting accesscontrol evasion and DDoS threats. Upgrade advised.. Ubuntu Squid Security Update Cache Injection Denial of Service. . Severity: Important. LinuxSecurity.com Team
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