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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.3085 USN-5487-3: Apache HTTP Server regression 24 June 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Apache HTTP Server Publisher: Ubuntu Operating System: Ubuntu Resolution: Patch/Upgrade CVE Names: CVE-2022-31813 CVE-2022-30556 CVE-2022-30522 CVE-2022-29404 CVE-2022-28615 CVE-2022-28614 CVE-2022-26377 Original Bulletin: https://ubuntu.com/security/notices/USN-5487-3 Comment: CVSS (Max): 9.8 CVE-2022-31813 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Source: NVD Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:I:N/S:U/C:H/I:H/A:H - --------------------------BEGIN INCLUDED TEXT-------------------- USN-5487-3: Apache HTTP Server regression 23 June 2022 USN-5487-1 introduced a regression in Apache HTTP Server. Releases o Ubuntu 18.04 LTS o Ubuntu 16.04 ESM o Ubuntu 14.04 ESM Packages o apache2 - Apache HTTP server Details USN-5487-1 fixed several vulnerabilities in Apache HTTP Server. Unfortunately it caused regressions. USN-5487-2 reverted the patches that caused the regression in Ubuntu 14.04 ESM for further investigation. This update re-adds the security fixes for Ubuntu 14.04 ESM and fixes two different regressions: one affecting mod_proxy only in Ubuntu 14.04 ESM and another in mod_sed affecting also Ubuntu 16.04 ESM and Ubuntu 18.04 LTS. We apologize for the inconvenience. Original advisory details: It was discovered that Apache HTTP Server mod_proxy_ajp incorrectly handled certain crafted request. A remote attacker could possibly use this issue to perform an HTTP Request Smuggling attack. ( CVE-2022-26377 ) It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to cause a denial of service. ( CVE-2022-28614 ) It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to cause a crash or expose sensitive information. ( CVE-2022-28615 ) It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to cause a denial of service. ( CVE-2022-29404 ) It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to cause a crash. ( CVE-2022-30522 ) It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to execute arbitrary code or cause a crash. ( CVE-2022-30556 ) It was discovered that Apache HTTP Server incorrectly handled certain request. An attacker could possibly use this issue to bypass IP based authentication. ( CVE-2022-31813 ) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.04 o apache2 - 2.4.29-1ubuntu4.25 o apache2-bin - 2.4.29-1ubuntu4.25 Ubuntu 16.04 o apache2 - 2.4.18-2ubuntu3.17+esm7 Available with UA Infra or UA Desktop o apache2-bin - 2.4.18-2ubuntu3.17+esm7 Available with UA Infra or UA Desktop Ubuntu 14.04 o apache2-bin - 2.4.7-1ubuntu4.22+esm8 Available with UA Infra or UA Desktop o apache2 - 2.4.7-1ubuntu4.22+esm8 Available with UA Infra or UA Desktop In general, a standard system update will make all the necessary changes. References o CVE-2022-26377 o CVE-2022-31813 o CVE-2022-28614 o CVE-2022-29404 o CVE-2022-28615 o CVE-2022-30522 o CVE-2022-30556 o https://launchpad.net/bugs/1979577 o https://launchpad.net/bugs/1979641 Related notices o USN-5487-1 : libapache2-mod-proxy-html, libapache2-mod-md, apache2-suexec, libapache2-mod-macro, apache2-mpm-prefork, apache2-ssl-dev, apache2-suexec-pristine, apache2-dev, apache2-utils, apache2.2-bin, apache2, apache2-mpm-itk, apache2-suexec-custom, libapache2-mod-proxy-uwsgi, apache2-bin, apache2-doc, apache2-mpm-worker, apache2-data, apache2-mpm-event - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: https://auscert.org.au/gpg-key/ iQIVAwUBYrUhMskNZI30y1K9AQgBbw//dmQXN36EaDNC37Ar3Tx+7AKMXPuz+p6i bfiYGzzdWfXGnalaZ+E96BvfXD2cBv4o5ndFA58Z/7IiQOGLOje9IU9/lQ/uySyI Tk3nEVRvVsQnVKhcPj69IpPWVwRGraYgK+A6qOlIqrVrb/r444Y58iRZo/qoOGon aZCRkIiQFwWV2IkIM+CJggN5u8kCmoCLZDYl5CtRTGXwieNr/w9BxLAPSD8BdyWJ h/+374jn3vF0tpFxUAUo4TwfUyMy79VijyKFbWFYEL6gNqBeMN6N/Pco31fWP+Vh XjDj+mibxueiswiX2GfxiKgMmWqpoGYA8aaUwr3H63vvGAZBBPyVXoCOJb88NIJ4 XL3T20k+NrhnmG3ikzFECGHIGBLZBYM6rNnMzP/CyYBAuJXaiRAwnO+mGi6MvCQz VLD5ncrn/wrvB0RZeTr1OYuthbQA+W7/79NAEWB48XdxKyhJR/WhVS0bQsie5i8B OXPz40FHyUCGXShiLfwfcUDNrxPauIVl21Z6ultEYYwaRA6DOZWQBEDUtBuFIjt/ 4n5Gq1En9Yqu2hLn+ghyVtd/S0pwxapGIw7GoLjykusykD7MG7ueF3xiVAX/fQbo hrsre6gUUpo6f50D/zMaTXWFjE8WpMHHYNMQiUBN/E3laUVvvOWBVFfBRbFfOriE NsWgUqL2V74= =q9x6 -----END PGP SIGNATURE-----