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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.1324 USN-4918-1: ClamAV vulnerabilities 20 April 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ClamAV Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2021-1405 CVE-2021-1404 CVE-2021-1252 Reference: ESB-2021.1281 ESB-2021.1271 ESB-2021.1237 Original Bulletin: https://ubuntu.com/security/notices/USN-4918-1 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4918-1: ClamAV vulnerabilities 19 April 2021 Several security issues were fixed in ClamAV. Releases o Ubuntu 20.10 o Ubuntu 20.04 LTS o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS Packages o clamav - Anti-virus utility for Unix Details It was discovered that ClamAV incorrectly handled parsing Excel documents. A remote attacker could possibly use this issue to cause ClamAV to hang, resulting in a denial of service. ( CVE-2021-1252 ) It was discovered that ClamAV incorrectly handled parsing PDF documents. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service. ( CVE-2021-1404 ) It was discovered that ClamAV incorrectly handled parsing email. A remote attacker could possibly use this issue to cause ClamAV to crash, resulting in a denial of service. ( CVE-2021-1405 ) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10 o clamav - 0.103.2+dfsg-0ubuntu0.20.10.1 Ubuntu 20.04 o clamav - 0.103.2+dfsg-0ubuntu0.20.04.1 Ubuntu 18.04 o clamav - 0.103.2+dfsg-0ubuntu0.18.04.1 Ubuntu 16.04 o clamav - 0.103.2+dfsg-0ubuntu0.16.04.1 This update uses a new upstream release, which includes additional bug fixes. In general, a standard system update will make all the necessary changes. References o CVE-2021-1405 o CVE-2021-1404 o CVE-2021-1252 - --------------------------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 iQIVAwUBYH5eQ+NLKJtyKPYoAQgMzhAAnHBWQcVAL7eGiw0WUxQgCa62ef4Kgr5O b4QOr4O2tiClxINtmCRM7NDW37Ekb2d3ojF51Z/7vROHXK0M88I286W9L52OpdPv mUFB1T3iF5I+TLuq7ACL6rEsHwAncp6QLTO4LJMQrApPOzucXvGP4hsDRbRXxONe /HmoO4Fah9WEXHk52H2KQhM330fiDctljoEUWNu05cHm75dhkSGbZmJoE3rKoGr1 R5RHZ42NV05v13sjaZu6Nr0WU1URu3tooAjfnTdY4Dj5z5koqhENfdVpHllMPXNN iDr/mWwkWxvBA1CwRqBrHE2NQoLB0tvQbOjBcQyqfy5eJuQDsJEKO65uQJ76br9D ig1Eqg3WzAyC9SZEUtDn/uzHEMZ1PXTZrcEZbJWRm0zMUX1y7s9wNLmVi2QNXqhf dyItmlBbtoc55qgcd03TlHEQKwoubctmrU4mZENk02k/V2M0I8adSAug2cCBjQbB 8yIptUztRZWpPS6wgy36Un1tamro2mveJ1VVhdlLDR7jNIVK446tRFXsCP3fJfg8 2jJcl+h/vXgiATd0oRyUQfkDqANsDn1q3F/rkwhnNzqiE/5rix1ErSq36tXfZKBQ /I6Km9cOAUCmsMYd1Dkh8dy5QWF+yKZWB6LfwHmD7AQP438QGWLryr6vUcXn4f1Y g1xMyuDvNJw= =NecM -----END PGP SIGNATURE-----