{"id":"OESA-2025-1556","summary":"varnish security update","details":"This is Varnish Cache, a web application accelerator also known as a caching HTTP reverse proxy. You install it in front of any server that speaks HTTP and configure it to cache the contents. Varnish Cache is really, really fast. It typically speeds up delivery with a factor of 300 - 1000x, depending on your architecture.\r\n\r\nSecurity Fix(es):\n\nVarnish Cache before 7.6.3 and 7.7 before 7.7.1, and Varnish Enterprise before 6.0.13r14, allow client-side desync via HTTP/1 requests, because the product incorrectly permits CRLF to be skipped to delimit chunk boundaries.(CVE-2025-47905)","modified":"2026-08-18T01:17:58.832296894Z","published":"2025-05-23T11:08:39Z","upstream":["CVE-2025-47905"],"database_specific":{"severity":"Medium"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2025-1556"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-47905"}],"affected":[{"package":{"name":"varnish","ecosystem":"openEuler:22.03-LTS-SP4","purl":"pkg:rpm/openEuler/varnish&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.4.3-3.oe2203sp4"}]}],"ecosystem_specific":{"x86_64":["varnish-7.4.3-3.oe2203sp4.x86_64.rpm","varnish-debuginfo-7.4.3-3.oe2203sp4.x86_64.rpm","varnish-debugsource-7.4.3-3.oe2203sp4.x86_64.rpm","varnish-devel-7.4.3-3.oe2203sp4.x86_64.rpm"],"aarch64":["varnish-7.4.3-3.oe2203sp4.aarch64.rpm","varnish-debuginfo-7.4.3-3.oe2203sp4.aarch64.rpm","varnish-debugsource-7.4.3-3.oe2203sp4.aarch64.rpm","varnish-devel-7.4.3-3.oe2203sp4.aarch64.rpm"],"noarch":["varnish-help-7.4.3-3.oe2203sp4.noarch.rpm"],"src":["varnish-7.4.3-3.oe2203sp4.src.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2025-1556.json"}},{"package":{"name":"varnish","ecosystem":"openEuler:24.03-LTS","purl":"pkg:rpm/openEuler/varnish&distro=openEuler-24.03-LTS"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.4.3-3.oe2403sp1"}]}],"ecosystem_specific":{"aarch64":["varnish-7.4.3-3.oe2403.aarch64.rpm","varnish-debuginfo-7.4.3-3.oe2403.aarch64.rpm","varnish-debugsource-7.4.3-3.oe2403.aarch64.rpm","varnish-devel-7.4.3-3.oe2403.aarch64.rpm","varnish-7.4.3-3.oe2403sp1.aarch64.rpm","varnish-debuginfo-7.4.3-3.oe2403sp1.aarch64.rpm","varnish-debugsource-7.4.3-3.oe2403sp1.aarch64.rpm","varnish-devel-7.4.3-3.oe2403sp1.aarch64.rpm"],"noarch":["varnish-help-7.4.3-3.oe2403.noarch.rpm","varnish-help-7.4.3-3.oe2403sp1.noarch.rpm"],"src":["varnish-7.4.3-3.oe2403.src.rpm","varnish-7.4.3-3.oe2403sp1.src.rpm"],"x86_64":["varnish-7.4.3-3.oe2403.x86_64.rpm","varnish-debuginfo-7.4.3-3.oe2403.x86_64.rpm","varnish-debugsource-7.4.3-3.oe2403.x86_64.rpm","varnish-devel-7.4.3-3.oe2403.x86_64.rpm","varnish-7.4.3-3.oe2403sp1.x86_64.rpm","varnish-debuginfo-7.4.3-3.oe2403sp1.x86_64.rpm","varnish-debugsource-7.4.3-3.oe2403sp1.x86_64.rpm","varnish-devel-7.4.3-3.oe2403sp1.x86_64.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2025-1556.json"}},{"package":{"name":"varnish","ecosystem":"openEuler:24.03-LTS-SP1","purl":"pkg:rpm/openEuler/varnish&distro=openEuler-24.03-LTS-SP1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.4.3-3.oe2403sp1"}]}],"ecosystem_specific":{"aarch64":["varnish-7.4.3-3.oe2403sp1.aarch64.rpm","varnish-debuginfo-7.4.3-3.oe2403sp1.aarch64.rpm","varnish-debugsource-7.4.3-3.oe2403sp1.aarch64.rpm","varnish-devel-7.4.3-3.oe2403sp1.aarch64.rpm"],"noarch":["varnish-help-7.4.3-3.oe2403sp1.noarch.rpm"],"src":["varnish-7.4.3-3.oe2403sp1.src.rpm"],"x86_64":["varnish-7.4.3-3.oe2403sp1.x86_64.rpm","varnish-debuginfo-7.4.3-3.oe2403sp1.x86_64.rpm","varnish-debugsource-7.4.3-3.oe2403sp1.x86_64.rpm","varnish-devel-7.4.3-3.oe2403sp1.x86_64.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2025-1556.json"}},{"package":{"name":"varnish","ecosystem":"openEuler:20.03-LTS-SP4","purl":"pkg:rpm/openEuler/varnish&distro=openEuler-20.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.4.3-3.oe2003sp4"}]}],"ecosystem_specific":{"x86_64":["varnish-7.4.3-3.oe2003sp4.x86_64.rpm","varnish-debuginfo-7.4.3-3.oe2003sp4.x86_64.rpm","varnish-debugsource-7.4.3-3.oe2003sp4.x86_64.rpm","varnish-devel-7.4.3-3.oe2003sp4.x86_64.rpm"],"aarch64":["varnish-7.4.3-3.oe2003sp4.aarch64.rpm","varnish-debuginfo-7.4.3-3.oe2003sp4.aarch64.rpm","varnish-debugsource-7.4.3-3.oe2003sp4.aarch64.rpm","varnish-devel-7.4.3-3.oe2003sp4.aarch64.rpm"],"noarch":["varnish-help-7.4.3-3.oe2003sp4.noarch.rpm"],"src":["varnish-7.4.3-3.oe2003sp4.src.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2025-1556.json"}},{"package":{"name":"varnish","ecosystem":"openEuler:22.03-LTS-SP3","purl":"pkg:rpm/openEuler/varnish&distro=openEuler-22.03-LTS-SP3"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.4.3-3.oe2203sp3"}]}],"ecosystem_specific":{"noarch":["varnish-help-7.4.3-3.oe2203sp3.noarch.rpm"],"src":["varnish-7.4.3-3.oe2203sp3.src.rpm"],"x86_64":["varnish-7.4.3-3.oe2203sp3.x86_64.rpm","varnish-debuginfo-7.4.3-3.oe2203sp3.x86_64.rpm","varnish-debugsource-7.4.3-3.oe2203sp3.x86_64.rpm","varnish-devel-7.4.3-3.oe2203sp3.x86_64.rpm"],"aarch64":["varnish-7.4.3-3.oe2203sp3.aarch64.rpm","varnish-debuginfo-7.4.3-3.oe2203sp3.aarch64.rpm","varnish-debugsource-7.4.3-3.oe2203sp3.aarch64.rpm","varnish-devel-7.4.3-3.oe2203sp3.aarch64.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2025-1556.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N"}]}