An update for httpd is now available for openEuler-22.03-LTS Security Advisory openeuler-security@openeuler.org openEuler security committee openEuler-SA-2023-1803 Final 1.0 1.0 2023-11-10 Initial 2023-11-10 2023-11-10 openEuler SA Tool V1.0 2023-11-10 httpd security update An update for httpd is now available for openEuler-22.03-LTS. Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Security Fix(es): When a HTTP/2 stream was reset (RST frame) by a client, there was a time window were the request's memory resources were not reclaimed immediately. Instead, de-allocation was deferred to connection close. A client could send new requests and resets, keeping the connection busy and open and causing the memory footprint to keep on growing. On connection close, all resources were reclaimed, but the process might run out of memory before that. This was found by the reporter during testing of CVE-2023-44487 (HTTP/2 Rapid Reset Exploit) with their own test client. During "normal" HTTP/2 use, the probability to hit this bug is very low. The kept memory would not become noticeable before the connection closes or times out. Users are recommended to upgrade to version 2.4.58, which fixes the issue. (CVE-2023-45802) An update for httpd is now available for openEuler-22.03-LTS. openEuler Security has rated this update as having a security impact of medium. A Common Vunlnerability Scoring System(CVSS)base score,which gives a detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section. Medium httpd https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1803 https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2023-45802 https://nvd.nist.gov/vuln/detail/CVE-2023-45802 openEuler-22.03-LTS mod_proxy_html-2.4.51-20.oe2203.aarch64.rpm mod_ldap-2.4.51-20.oe2203.aarch64.rpm mod_md-2.4.51-20.oe2203.aarch64.rpm httpd-tools-2.4.51-20.oe2203.aarch64.rpm mod_session-2.4.51-20.oe2203.aarch64.rpm httpd-devel-2.4.51-20.oe2203.aarch64.rpm httpd-2.4.51-20.oe2203.aarch64.rpm httpd-debugsource-2.4.51-20.oe2203.aarch64.rpm httpd-debuginfo-2.4.51-20.oe2203.aarch64.rpm mod_ssl-2.4.51-20.oe2203.aarch64.rpm httpd-help-2.4.51-20.oe2203.noarch.rpm httpd-filesystem-2.4.51-20.oe2203.noarch.rpm httpd-2.4.51-20.oe2203.src.rpm mod_proxy_html-2.4.51-20.oe2203.x86_64.rpm mod_ldap-2.4.51-20.oe2203.x86_64.rpm mod_session-2.4.51-20.oe2203.x86_64.rpm httpd-devel-2.4.51-20.oe2203.x86_64.rpm mod_md-2.4.51-20.oe2203.x86_64.rpm httpd-debugsource-2.4.51-20.oe2203.x86_64.rpm mod_ssl-2.4.51-20.oe2203.x86_64.rpm httpd-tools-2.4.51-20.oe2203.x86_64.rpm httpd-debuginfo-2.4.51-20.oe2203.x86_64.rpm httpd-2.4.51-20.oe2203.x86_64.rpm When a HTTP/2 stream was reset (RST frame) by a client, there was a time window were the request s memory resources were not reclaimed immediately. Instead, de-allocation was deferred to connection close. A client could send new requests and resets, keeping the connection busy and open and causing the memory footprint to keep on growing. On connection close, all resources were reclaimed, but the process might run out of memory before that.This was found by the reporter during testing of CVE-2023-44487 (HTTP/2 Rapid Reset Exploit) with their own test client. During normal HTTP/2 use, the probability to hit this bug is very low. The kept memory would not become noticeable before the connection closes or times out.Users are recommended to upgrade to version 2.4.58, which fixes the issue. 2023-11-10 CVE-2023-45802 openEuler-22.03-LTS Medium 5.9 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H httpd security update 2023-11-10 https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2023-1803