{"id":"CLSA-2026-1781273712","summary":"Fix CVE(s): CVE-2026-29167, CVE-2026-34355, CVE-2026-34356","details":"   * SECURITY UPDATE: use-after-free in mod_ldap per-directory client\n     certificate configuration\n     - debian/patches/CVE-2026-29167.patch: deep-copy the per-directory\n       client_certs array (each cert path and password) into the connection\n       pool in uldap_connection_find() so the cached connection no longer\n       retains pointers into the short-lived per-directory config pool in\n       modules/ldap/util_ldap.c.\n     - CVE-2026-29167\n   * SECURITY UPDATE: buffer overflow in mod_proxy_html with an untrusted\n     backend response\n     - debian/patches/CVE-2026-34355.patch: replace the hand-managed\n       preserve()/pappend() output buffer with the bounds-checked ap_varbuf\n       API (ap_varbuf_grow, ap_varbuf_strmemcat, ap_varbuf_regsub) for the\n       CDATA, element and event URL rewrites so an oversized substitution\n       can no longer overflow the buffer in\n       modules/filters/mod_proxy_html.c.\n     - CVE-2026-34355\n   * SECURITY UPDATE: heap buffer overflow in mod_proxy ProxyPassReverseCookie\n     handling with a malicious backend response\n     - debian/patches/CVE-2026-34356.patch: reset newpath/pdiff and\n       newdomain/ddiff for each path= and domain= cookie attribute in\n       ap_proxy_cookie_reverse_map() so a duplicate attribute can no longer\n       reuse a stale length offset and overflow the rewritten cookie buffer\n       in modules/proxy/proxy_util.c.\n     - CVE-2026-34356","modified":"2026-10-26T09:32:05.229614476Z","published":"2026-06-12T14:15:36Z","upstream":["CVE-2026-29167","CVE-2026-34355","CVE-2026-34356"],"references":[{"type":"ADVISORY","url":"https://errata.tuxcare.com/els_os/ubuntu20.04els/CLSA-2026-1781273712.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-29167"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34355"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34356"}],"affected":[{"package":{"name":"apache2","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/apache2?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.41-4ubuntu3.23+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781273712.json"}},{"package":{"name":"apache2-bin","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/apache2-bin?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.41-4ubuntu3.23+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781273712.json"}},{"package":{"name":"apache2-data","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/apache2-data?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.41-4ubuntu3.23+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781273712.json"}},{"package":{"name":"apache2-dev","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/apache2-dev?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.41-4ubuntu3.23+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781273712.json"}},{"package":{"name":"apache2-doc","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/apache2-doc?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.41-4ubuntu3.23+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781273712.json"}},{"package":{"name":"apache2-ssl-dev","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/apache2-ssl-dev?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.41-4ubuntu3.23+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781273712.json"}},{"package":{"name":"apache2-suexec-custom","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/apache2-suexec-custom?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.41-4ubuntu3.23+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781273712.json"}},{"package":{"name":"apache2-suexec-pristine","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/apache2-suexec-pristine?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.41-4ubuntu3.23+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781273712.json"}},{"package":{"name":"apache2-utils","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/apache2-utils?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.41-4ubuntu3.23+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781273712.json"}},{"package":{"name":"libapache2-mod-md","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/libapache2-mod-md?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.41-4ubuntu3.23+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781273712.json"}},{"package":{"name":"libapache2-mod-proxy-uwsgi","ecosystem":"TuxCare:Ubuntu:20.04","purl":"pkg:deb/tuxcare/libapache2-mod-proxy-uwsgi?distro=ubuntu-20.04"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.4.41-4ubuntu3.23+tuxcare.els5"}]}],"database_specific":{"source":"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu20.04els/CLSA-2026-1781273712.json"}}],"schema_version":"1.9.0"}