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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2022.2432 USN-5427-1: Apport vulnerabilities 18 May 2022 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Apport Publisher: Ubuntu Operating System: Ubuntu Resolution: Patch/Upgrade CVE Names: CVE-2022-28658 CVE-2022-28657 CVE-2022-28656 CVE-2022-28655 CVE-2022-28654 CVE-2022-28652 CVE-2022-1242 CVE-2021-3899 Original Bulletin: https://ubuntu.com/security/notices/USN-5427-1 Comment: CVSS (Max): None available when published - --------------------------BEGIN INCLUDED TEXT-------------------- USN-5427-1: Apport vulnerabilities 17 May 2022 Several security issues were fixed in Apport. Releases o Ubuntu 22.04 LTS o Ubuntu 21.10 o Ubuntu 20.04 LTS o Ubuntu 18.04 LTS Packages o apport - automatically generate crash reports for debugging Details Muqing Liu and neoni discovered that Apport incorrectly handled detecting if an executable was replaced after a crash. A local attacker could possibly use this issue to execute arbitrary code as the root user. ( CVE-2021-3899 ) Gerrit Venema discovered that Apport incorrectly handled connections to Apport sockets inside containers. A local attacker could possibly use this issue to connect to arbitrary sockets as the root user. ( CVE-2022-1242 ) Gerrit Venema discovered that Apport incorrectly handled user settings files. A local attacker could possibly use this issue to cause Apport to consume resources, leading to a denial of service. ( CVE-2022-28652 ) Gerrit Venema discovered that Apport did not limit the amount of logging from D-Bus connections. A local attacker could possibly use this issue to fill up the Apport log file, leading to denial of service. ( CVE-2022-28654 ) Gerrit Venema discovered that Apport did not filter D-Bus connection strings. A local attacker could possibly use this issue to cause Apport to make arbitrary network connections. ( CVE-2022-28655 ) Gerrit Venema discovered that Apport did not limit the amount of memory being consumed during D-Bus connections. A local attacker could possibly use this issue to cause Apport to consume memory, leading to a denial of service. ( CVE-2022-28656 ) Gerrit Venema discovered that Apport did not disable the python crash handler before chrooting into a container. A local attacker could possibly use this issue to execute arbitrary code. ( CVE-2022-28657 ) Gerrit Venema discovered that Apport incorrectly handled filename argument whitespace. A local attacker could possibly use this issue to spoof arguments to the Apport daemon. ( CVE-2022-28658 ) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 22.04 o python3-apport - 2.20.11-0ubuntu82.1 o apport - 2.20.11-0ubuntu82.1 Ubuntu 21.10 o python3-apport - 2.20.11-0ubuntu71.2 o apport - 2.20.11-0ubuntu71.2 Ubuntu 20.04 o python3-apport - 2.20.11-0ubuntu27.24 o apport - 2.20.11-0ubuntu27.24 Ubuntu 18.04 o python3-apport - 2.20.9-0ubuntu7.28 o apport - 2.20.9-0ubuntu7.28 In general, a standard system update will make all the necessary changes. References o CVE-2022-28652 o CVE-2022-28658 o CVE-2022-28655 o CVE-2022-28654 o CVE-2021-3899 o CVE-2022-28657 o CVE-2022-28656 o CVE-2022-1242 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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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/ iQIVAwUBYoRp28kNZI30y1K9AQhhVA//aNQKn2y+zhTzWgEHq48dQzB3aaR/3J6a OgKHWhIqOuxI8r+7P6lfl56VnSGszaLRWFGV52mhkohQvo14YQQliW0UhB2/WlF0 0pZmtyaqmaRrlpf0IfLuVdYTrK8XUfvTX4sAILfLT1fvozKKWjiCImT5NgbDZT4A TLSN8GRUboAiLuKBDFZ1L2vBLFCUHLcL5ugGMHZK3HU9XrdOvi6tvlSkQlR81WPW Ne8lFUQJ7CIv8UOev9aqr0HH+vf4UEAZyFF8EJzEARBgzgilAMYSHNjYdPMjTSfe HfIC5JJJxeIFk/u9pxKrO8XM/USnuG52C2uRcBSWpiUpZjcqZR7sIG5mGPlmMJyt Py97HCDTpV37nt02nei0SfjmFoi10d6zy6GD4EinAgaurYQnwemIhYjudvbEmXLJ U5TSDD9PCPtepw7f5k+wtfOnKQa+O+Em6i6dYpN4tIVKlauMVv0E3FfXzvXH9KTi Dna1NnmpmN1AYviWYjL6bV14fdmLfB/uOhWUoiTEfiKdftiyMthgLH/G3ffqVaaR 4MKvUHmwaSnrFCYy8daZB8ZfO04dR0WhNV9PVq/CtpMt8WtwRNWYCqEoDyVIv+NR eX/nrz+hrT/o2vazR2RAe6EHn5fjiVrv5Ed6NbjOnXXqubdTzW0u0j8oqKpcOzeK OFaYADpiiXk= =k+iJ -----END PGP SIGNATURE-----