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Ubuntu: 4617-1 Moderate: SPICE Vdagent Memory Error and DoS Risks

Several security issues were fixed in SPICE vdagent.. =========================================================================Ubuntu Security Notice USN-4617-1 November 04, 2020 spice-vdagent vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 20.10 - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS Summary: Several security issues were fixed in SPICE vdagent. Software Description: - spice-vdagent: Spice agent for Linux Details: Matthias Gerstner discovered that SPICE vdagent incorrectly handled the active_xfers hash table. A local attacker could possibly use this issue to cause SPICE vdagent to consume memory, resulting in a denial of service. (CVE-2020-25650) Matthias Gerstner discovered that SPICE vdagent incorrectly handled the active_xfers hash table. A local attacker could possibly use this issue to cause SPICE vdagent to consume memory, resulting in a denial of service, or obtain sensitive file contents. (CVE-2020-25651) Matthias Gerstner discovered that SPICE vdagent incorrectly handled a large number of client connections. A local attacker could possibly use this issue to cause SPICE vdagent to consume resources, resulting in a denial of service. (CVE-2020-25652) Matthias Gerstner discovered that SPICE vdagent incorrectly handled client connections. A local attacker could possibly use this issue to obtain sensitive information, paste clipboard contents, and transfer files into the active session. (CVE-2020-25653) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10: spice-vdagent 0.20.0-1ubuntu0.1 Ubuntu 20.04 LTS: spice-vdagent 0.19.0-2ubuntu0.2 Ubuntu 18.04 LTS: spice-vdagent 0.17.0-1ubuntu2.2 After a standard system update you need to reboot your computer to make all the necessarychanges. References: https://ubuntu.com/security/notices/USN-4617-1 CVE-2020-25650, CVE-2020-25651, CVE-2020-25652, CVE-2020-25653 Package Information: https://launchpad.net/ubuntu/+source/spice-vdagent/0.20.0-1ubuntu0.1 https://launchpad.net/ubuntu/+source/spice-vdagent/0.19.0-2ubuntu0.2 https://launchpad.net/ubuntu/+source/spice-vdagent/0.17.0-1ubuntu2.2 . Multiple security issues were addressed in SPICE vdagent impacting Ubuntu environments, which included threats related to denial of service.. Ubuntu Security, SPICE vdagent, Denial of Service, Local Attack. . LinuxSecurity.com Team

Nov 04, 2020 Ubuntu