RedHat: RHSA-2021-1791:01 Moderate: spice-vdagent security and bug fix
Summary
The spice-vdagent packages provide a SPICE agent for Linux guests.
Security Fix(es):
* spice-vdagent: possible file transfer DoS and information leak via
active_xfers hash map (CVE-2020-25651)
* spice-vdagent: UNIX domain socket peer PID retrieved via SO_PEERCRED is
subject to race condition (CVE-2020-25653)
* spice-vdagent: memory DoS via arbitrary entries in active_xfers hash
table (CVE-2020-25650)
* spice-vdagent: possibility to exhaust file descriptors in vdagentd
(CVE-2020-25652)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat
Enterprise Linux 8.4 Release Notes linked from the References section.
Summary
Solution
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
References
https://access.redhat.com/security/cve/CVE-2020-25650 https://access.redhat.com/security/cve/CVE-2020-25651 https://access.redhat.com/security/cve/CVE-2020-25652 https://access.redhat.com/security/cve/CVE-2020-25653 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/
Package List
Red Hat Enterprise Linux AppStream (v. 8):
Source:
spice-vdagent-0.20.0-3.el8.src.rpm
aarch64:
spice-vdagent-0.20.0-3.el8.aarch64.rpm
spice-vdagent-debuginfo-0.20.0-3.el8.aarch64.rpm
spice-vdagent-debugsource-0.20.0-3.el8.aarch64.rpm
ppc64le:
spice-vdagent-0.20.0-3.el8.ppc64le.rpm
spice-vdagent-debuginfo-0.20.0-3.el8.ppc64le.rpm
spice-vdagent-debugsource-0.20.0-3.el8.ppc64le.rpm
s390x:
spice-vdagent-0.20.0-3.el8.s390x.rpm
spice-vdagent-debuginfo-0.20.0-3.el8.s390x.rpm
spice-vdagent-debugsource-0.20.0-3.el8.s390x.rpm
x86_64:
spice-vdagent-0.20.0-3.el8.x86_64.rpm
spice-vdagent-debuginfo-0.20.0-3.el8.x86_64.rpm
spice-vdagent-debugsource-0.20.0-3.el8.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
Topic
An update for spice-vdagent is now available for Red Hat Enterprise Linux8.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Topic
Relevant Releases Architectures
Red Hat Enterprise Linux AppStream (v. 8) - aarch64, ppc64le, s390x, x86_64
Bugs Fixed
1790904 - [wayland] Multiple displays: mouse coordinates taken from the other display
1824610 - [wayland] 3. and 4. spice display does not react to mouse interaction
1886345 - CVE-2020-25650 spice-vdagent: memory DoS via arbitrary entries in active_xfers hash table
1886359 - CVE-2020-25651 spice-vdagent: possible file transfer DoS and information leak via active_xfers hash map
1886366 - CVE-2020-25652 spice-vdagent: possibility to exhaust file descriptors in vdagentd
1886372 - CVE-2020-25653 spice-vdagent: UNIX domain socket peer PID retrieved via SO_PEERCRED is subject to race condition