Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.1072 ruby2.1 security update 1 April 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ruby2.1 Publisher: Debian Operating System: Debian GNU/Linux 8 Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Delete Arbitrary Files -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-8325 CVE-2019-8324 CVE-2019-8323 CVE-2019-8322 CVE-2019-8320 Reference: ESB-2019.0821 ESB-2019.0678 Original Bulletin: https://lists.debian.org/debian-lts-announce/2019/03/msg00037.html - --------------------------BEGIN INCLUDED TEXT-------------------- Package : ruby2.1 Version : 2.1.5-2+deb8u7 CVE ID : CVE-2019-8320 CVE-2019-8322 CVE-2019-8323 CVE-2019-8324 CVE-2019-8325 Several vulnerabilities have been discovered in rubygems embedded in ruby2.1, the interpreted scripting language. CVE-2019-8320 A Directory Traversal issue was discovered in RubyGems. Before making new directories or touching files (which now include path-checking code for symlinks), it would delete the target destination. CVE-2019-8322 The gem owner command outputs the contents of the API response directly to stdout. Therefore, if the response is crafted, escape sequence injection may occur. CVE-2019-8323 Gem::GemcutterUtilities#with_response may output the API response to stdout as it is. Therefore, if the API side modifies the response, escape sequence injection may occur. CVE-2019-8324 A crafted gem with a multi-line name is not handled correctly. Therefore, an attacker could inject arbitrary code to the stub line of gemspec, which is eval-ed by code in ensure_loadable_spec during the preinstall check. CVE-2019-8325 An issue was discovered in RubyGems 2.6 and later through 3.0.2. Since Gem::CommandManager#run calls alert_error without escaping, escape sequence injection is possible. (There are many ways to cause an error.) For Debian 8 "Jessie", these problems have been fixed in version 2.1.5-2+deb8u7. We recommend that you upgrade your ruby2.1 packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS - --------------------------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: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBXKFeRmaOgq3Tt24GAQjIHRAAmm2L9KoxiF6czNCaTZhmRC+PCLW7mliU vv3PSBcD0u/AxFjMtxGZfYfdyVdKUjZjH23GGV+0GcTBfclBjVbYjiIU8DgqVrYb 83iPBeGDcAzSFDFusaE9ohOs8XXknBmOm+zrykqFqhXsb6hcDKpbovvG/BMXLU06 0+Xi98qXhsMIChboIfQ7hG/gamI81rV9DD9AulMLh7eOvH7u40r+w6Qf81fJpeqA u0dXHIaWTMRhwvY+vuF6byj9Lr47HxemEb/0pvL8aAdTsr2S+pPkWscNO1vPeCGv iVr1o2oBqXjcGe00iiYbNNzdyUAy2PQt1EZdiXjOSwuCQA9VsQsXirsFwYKSxokB X9K9R2SNUHjip+8mGdKBrdKnd1bKLX0JqxQehzltbwSSJ4g4q1Uoi7/7rbj67ICi GkXrEaZ+dMycrwBapEi3WJtAlzfeamjDGpxUAyY9gu3OCLOBiYniDkQX0xHeGGVM xOGsARjNMsU1uUFkdgtWkQXDrtijqrn8qB//J9Yh6yjnvazNm7Vj3LSGlpYi/3r7 qfJ3NgDP4py2WBCOYylxGuIkoBzoo+vBJ/SS9JvAe0wiICnJ/frpeZJsJvK58loW 3ilC1/pH5W0neUjSmAKun64VsP5nGe7AsmGaNMfjqDylclx9mfttLzDM3GNhN0br W98mcl1MFSI= =9YvX -----END PGP SIGNATURE-----