{"id":"RLSA-2020:4743","summary":"Moderate: squid:4 security, bug fix, and enhancement update","details":"Squid is a high-performance proxy caching server for web clients, supporting FTP, Gopher, and HTTP data objects.\n\nThe following packages have been upgraded to a later upstream version: squid (4.11). (BZ#1829467)\n\nSecurity Fix(es):\n\n* squid: Improper input validation in request allows for proxy manipulation (CVE-2019-12520)\n\n* squid: Off-by-one error in addStackElement allows for heap buffer overflow and crash (CVE-2019-12521)\n\n* squid: Improper input validation in URI processor (CVE-2019-12523)\n\n* squid: Improper access restriction in url_regex may lead to security bypass (CVE-2019-12524)\n\n* squid: Heap overflow issue in URN processing (CVE-2019-12526)\n\n* squid: Information Disclosure issue in FTP Gateway (CVE-2019-12528)\n\n* squid: Out of bounds read in Proxy-Authorization header causes DoS (CVE-2019-12529)\n\n* squid: Denial of service in cachemgr.cgi (CVE-2019-12854)\n\n* squid: Buffer overflow in URI processor (CVE-2019-18676)\n\n* squid: Cross-Site Request Forgery issue in HTTP Request processing (CVE-2019-18677)\n\n* squid: HTTP Request Splitting issue in HTTP message processing (CVE-2019-18678)\n\n* squid: Information Disclosure issue in HTTP Digest Authentication (CVE-2019-18679)\n\n* squid: Mishandled HTML in the host parameter to cachemgr.cgi results in insecure behaviour (CVE-2019-18860)\n\n* squid: Improper input validation issues in HTTP Request processing (CVE-2020-8449)\n\n* squid: Buffer overflow in reverse-proxy configurations (CVE-2020-8450)\n\n* squid: DoS in TLS handshake (CVE-2020-14058)\n\n* squid: Request smuggling and poisoning attack against the HTTP cache (CVE-2020-15049)\n\n* squid: Improper input validation could result in a DoS (CVE-2020-24606)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Rocky Linux 8.3 Release Notes linked from the References section.","modified":"2026-03-11T05:55:23.661544Z","published":"2020-11-03T12:32:17Z","upstream":["CVE-2019-12520","CVE-2019-12521","CVE-2019-12523","CVE-2019-12524","CVE-2019-12526","CVE-2019-12528","CVE-2019-12529","CVE-2019-12854","CVE-2019-18676","CVE-2019-18677","CVE-2019-18678","CVE-2019-18679","CVE-2019-18860","CVE-2020-14058","CVE-2020-15049","CVE-2020-24606","CVE-2020-8449","CVE-2020-8450"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2020:4743"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1730523"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1730528"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1770349"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1770356"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1770360"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1770365"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1770371"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1770375"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1798534"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1798540"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1798552"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1817121"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1827558"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1827562"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1827570"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1852550"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1852554"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1871705"}],"affected":[{"package":{"name":"libecap","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/libecap?distro=rocky-linux-8&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:1.0.1-2.module+el8.4.0+404+316a0dc5"}],"database_specific":{"yum_repository":"AppStream"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2020:4743.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}