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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.3232 ClamAV 0.101.4 released with new vulnerability and complete fix for previous vulnerability 26 August 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ClamAV Publisher: ClamAV Operating System: UNIX variants (UNIX, Linux, OSX) Windows Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-12900 CVE-2019-12625 Reference: ESB-2019.2276 Original Bulletin: https://blog.clamav.net/2019/08/clamav-01014-security-patch-release-has.html - --------------------------BEGIN INCLUDED TEXT-------------------- ClamAV blog Wednesday, August 21, 2019 ClamAV 0.101.4 security patch release has been published Today we have published the ClamAV 0.101.4 security patch release. 0.101.4 ClamAV 0.101.4 is a security patch release that addresses the following issues. * An out of bounds write was possible within ClamAV's NSIS bzip2 library when attempting decompression in cases where the number of selectors exceeded the max limit set by the library (CVE-2019-12900). The issue has been resolved by respecting that limit. Thanks to Martin Simmons for reporting the issue here. * The zip bomb vulnerability mitigated in 0.101.3 has been assigned the CVE identifier CVE-2019-12625. Unfortunately, a workaround for the zip-bomb mitigation was immediately identified. To remediate the zip-bomb scan time issue, a scan time limit has been introduced in 0.101.4. This limit now resolves ClamAV's vulnerability to CVE-2019-12625. The default scan time limit is 2 minutes (120000 milliseconds). To customize the time limit: - use the clamscan --max-scantime option - use the clamd MaxScanTime config option Libclamav users may customize the time limit using the cl_engine_set_num function. For example: cl_engine_set_num(engine, CL_ENGINE_MAX_SCANTIME, time_limit_milliseconds) Thanks to David Fifield for reviewing the zip-bomb mitigation in 0.101.3 and reporting the issue. As usual, ClamAV may be downloaded from https://www.clamav.net/downloads, and discussion should take place on the ClamAV-Users list. Thanks! - --------------------------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 iQIVAwUBXWNOO2aOgq3Tt24GAQicfg/9GdJsujKRqcn+syDzxcFwH0YvHLClX1zB +5dRlRfWb2ltrhAF2RiS6tBBShwREtw9bdHqY+E5dyNv+yS9LwFHJmWE7WkZRHbo /U+NJfjgJYfNjhPVSZVb/40iYmggnJeRjitKFtCeyn8dG/KqK/lp0PaTbLbj1B7G p++UYHX9l242smzOsKUZH4ceO28NAzknKHn+2+1bhCqid2JSKqExPvcVuxbjMPLr ZSc7OZOgvP+ga7VPDBYCmOsI0phOsohS3rahrVQAiLEpll8cfUQesRdvLkoKaHc5 jv8RxuK+PYF7ycY0CTt3SyKfoXjCi3BNHpUjHaWkKIWmMsK0SJ6rlsBupgUAJJ2+ HdYJ/2NYHnlT9aE7XWJv6lSVuJipNAIZ8rRl/rkZR+mnXjhKYSfxnBuaVPCsfbtc juKOBVmN7ufxnsZD5u1LogWoW6UI5kOst/SrKhW/SfvZqZu1oDYaS4HlOmWXPI2E xwmuE6OVGlYtTQhSiNcoDlYGb/Ao2bcikJm98p5tFfpS2Psg0tY2rmyQyeo+uzFF z0G+5hJh1HeZZT5XomzSCxOVjaLEQ+qvf9TMluJoRw7WZHfxfA3VTVO+OU8VqAEx 0/GWplmauct9j6GECMz+i0393nwXQLiFOowt34zAZmOf3WlZsmBp5Nyk6X8HPSft XXf+kl6oyUw= =yOQH -----END PGP SIGNATURE-----