Vulnerability in Spice-Space Spice-Vdagent
CVE-2020-25653
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.
Vulnerability class: Race Condition
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (23.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 23.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Spice-Space Spice-Vdagent
- Debian Linux — versions 9.0
- Fedoraproject Fedora — versions 32, 33
- Spice-Vdagent — versions spice-vdagent versions 0.20 and prior
Weakness classification (CWE)
References
- www.openwall.com/lists/oss-security/2020/11/04/1 (Exploit, Mailing List, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2021/01/msg00012.html (mailing-list, Mailing List, Third Party Advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
Frequently asked questions
- What is CVE-2020-25653?
- CVE-2020-25653 is a medium-severity vulnerability in Spice-Space Spice-Vdagent, classified under Concurrent Execution using Shared Resource with Improper Synchronization (Race Condition). CVSS score: 6.3/10. Published 2020-11-26.
- How severe is CVE-2020-25653?
- Medium severity. CVSS v3 base score is 6.3 out of 10.