Vulnerability · Published Nov 26, 2020 · Assigned by redhat
CVE-2020-25653
Medium 6.3
In plain English
A medium-severity race condition in spice-vdagent. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
A race condition vulnerability was found in the way the spice-vdagentd daemon handled new client connections. This flaw may allow an unprivileged local guest user to become the active agent for spice-vdagentd, possibly resulting in a denial of service or information leakage from the host. The highest threat from this vulnerability is to data confidentiality as well as system availability. This flaw affects spice-vdagent versions 0.20 and prior.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | spice-vdagent | 0.20.0-3.el8 | ALSA-2021:1791 |
| Debian:12 | spice-vdagent | 0.20.0-2 | DEBIAN-CVE-2020-25653 |
| Debian:13 | spice-vdagent | 0.20.0-2 | DEBIAN-CVE-2020-25653 |
| Debian:14 | spice-vdagent | 0.20.0-2 | DEBIAN-CVE-2020-25653 |
| Rocky Linux:8 | spice-vdagent | 0:0.20.0-3.el8 | RLSA-2021:1791 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| n/a | spice-vdagent | spice-vdagent versions 0.20 and prior |
Weakness: CWE-362
References
- https://www.openwall.com/lists/oss-security/2020/11/04/1 x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=1886372 x_refsource_MISC
- [debian-lts-announce] 20210113 [SECURITY] [DLA 2524-1] spice-vdagent security update mailing-list, x_refsource_MLIST
- FEDORA-2021-09ce0cdfac vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-510977db25 vendor-advisory, x_refsource_FEDORA