CVE-2021-3700

MEDIUM

usbredir < 0.11.0 - Use-After-Free in usbredirparser_serialize()

Title source: llm
STIX 2.1

Description

A use-after-free vulnerability was found in usbredir in versions prior to 0.11.0 in the usbredirparser_serialize() in usbredirparser/usbredirparser.c. This issue occurs when serializing large amounts of buffered write data in the case of a slow or blocked destination.

References (3)

Core 3
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=1992830
Patch, Third Party Advisory x_refsource_misc
https://gitlab.freedesktop.org/spice/usbredir/-/commit/03c519ff5831ba
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2022/03/msg00030.html

Scores

CVSS v3 6.4
EPSS 0.0004
EPSS Percentile 12.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (6)
debian/debian_linux 9.0
fedoraproject/fedora 34
redhat/enterprise_linux 6.0
redhat/enterprise_linux 7.0
redhat/enterprise_linux 8.0
spice-space/usbredir < 0.11.0
Published Feb 24, 2022
Tracked Since Feb 18, 2026