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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.1760 Cisco AnyConnect Secure Mobility Client for Linux Out-of-Bounds Memory Read Vulnerability 16 May 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: isco AnyConnect Secure Mobility Client for Linux Publisher: Cisco Systems Operating System: Cisco Impact/Access: Access Privileged Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-1853 Original Bulletin: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190515-anyconnectclient-oob-read - --------------------------BEGIN INCLUDED TEXT-------------------- Cisco AnyConnect Secure Mobility Client for Linux Out-of-Bounds Memory Read Vulnerability Priority: Medium Advisory ID: cisco-sa-20190515-anyconnectclient-oob-read First Published: 2019 May 15 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvn47574 CVE-2019-1853 CWE-125 CVSS Score: 4.8 AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:X/RL:X/RC:X Summary o A vulnerability in the HostScan component of Cisco AnyConnect Secure Mobility Client for Linux could allow an unauthenticated, remote attacker to read sensitive information on an affected system. The vulnerability exists because the affected software performs improper bounds checks. An attacker could exploit this vulnerability by crafting HTTP traffic for the affected component to download and process. A successful exploit could allow the attacker to read sensitive information on the affected system. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/ cisco-sa-20190515-anyconnectclient-oob-read Affected Products o Vulnerable Products This vulnerability affects Cisco AnyConnect Secure Mobility Client for Linux. For information about affected software releases, consult the Cisco bug ID(s) at the top of this advisory. Products Confirmed Not Vulnerable Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability. Workarounds o There are no workarounds that address this vulnerability. Fixed Software o For information about fixed software releases , consult the Cisco bug ID(s) at the top of this advisory. When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page , to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers. Exploitation and Public Announcements o The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory. Source o Cisco would like to thank Robert Scott for reporting this vulnerability. Cisco Security Vulnerability Policy o To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy . This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco. URL o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/ cisco-sa-20190515-anyconnectclient-oob-read Revision History o +----------+---------------------------+----------+--------+--------------+ | Version | Description | Section | Status | Date | +----------+---------------------------+----------+--------+--------------+ | 1.0 | Initial public release. | - | Final | 2019-May-15 | +----------+---------------------------+----------+--------+--------------+ - --------------------------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. 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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 iQIVAwUBXN0IL2aOgq3Tt24GAQjABw/+LSU5P37kEUR9UKsaqk9feaB0tXPxh95l WU4Qq+JNKPv8zKVFhstBByhacfvxxO3Ly61mGg8jgBm8qwKeA9rlUfuVVsrPWXbi SRcSaAUWqUB8NEJLZynv0ZBnFL0+ZY+6jr9KD72KN8eXRSCz+ub94jIDzRr+nDac bhgvJ98gr8LWO1IxYfm8B0Mtk3wHPfmUQhf35bgtuZA4fnDcLBqAGgzizmYTDVjK YKhUhutrA9Gdn05Q5sBa0DAvfeEoPUZmE1XBdhUZE7OWuTpOSx6E84jXEE38Yj34 QmpWtoxC2KKgtcaQTGlCve5rN+YvixTjaSqZY+mQNQvoxUNcah+2papTgqsvIzgv 52woG9dZ358JIx08gKKytHUxQFwscHMRovZJEi2z0FXRHFJfZ7XyaMDwEM8O7oJu mAWzHZ62dpgDBefr/sH6o/6fJ4OhwrK73OhBvtMf3CXSHN8cCJ96QwGtLn6Wodou wYIN9ow2W0P22l4B4A5R+IrG/M6UIGxIcpvqpBLh+7umROa0Nc56evK0t11cQsyP NJtn/b2ZG847nw99PnVjT+7a6xbQpDBiokM/nH7QG3k+kpyBQepUtYVYOwJ46r09 9KiWAHxSmJBiTLIxJ2anvqNQiLUU/7cyOXyyIQ7bZ5iSNLmaU6bMZyv/WyAqUJmw EjPBNnx9BkY= =7TEG -----END PGP SIGNATURE-----