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CVE-2020-25650

Status Candidate

Overview

A flaw was found in the way the spice-vdagentd daemon handled file transfers from the host system to the virtual machine. Any unprivileged local guest user with access to the UNIX domain socket path `/run/spice-vdagentd/spice-vdagent-sock` could use this flaw to perform a memory denial of service for spice-vdagentd or even other processes in the VM system. The highest threat from this vulnerability is to system availability. This flaw affects spice-vdagent versions 0.20 and previous versions.

Related Files

Red Hat Security Advisory 2021-1791-01
Posted May 19, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-1791-01 - The spice-vdagent packages provide a SPICE agent for Linux guests. Issues addressed include denial of service and information leakage vulnerabilities.

tags | advisory, denial of service, vulnerability
systems | linux, redhat
advisories | CVE-2020-25650, CVE-2020-25651, CVE-2020-25652, CVE-2020-25653
SHA-256 | 93361840143528b68e14153e71331ca4b8ad68717eb50adc7eaae79b6640adfc
Ubuntu Security Notice USN-4617-1
Posted Nov 4, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4617-1 - 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. 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. Various other issues were also addressed.

tags | advisory, denial of service, local
systems | linux, ubuntu
advisories | CVE-2020-25650, CVE-2020-25651, CVE-2020-25652, CVE-2020-25653
SHA-256 | 029de89af76dac287d7764184f2727af45165fac2874d6ce9b1c1d78b876a71d
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