CVE-2021-20201
First published: Thu Jan 28 2021(Updated: )
A flaw was found in spice in versions before 0.14.92. A DoS tool might make it easier for remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Spice Project Spice | <0.14.92 | |
| Redhat Enterprise Linux | =6.0 | |
| Redhat Enterprise Linux | =7.0 | |
| Redhat Enterprise Linux | =8.0 | |
| redhat/spice | <0.14.92 | 0.14.92 |
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Reference Links
- https://blog.qualys.com/product-tech/2011/10/31/tls-renegotiation-and-denial-of-service-attacks
- https://bugzilla.redhat.com/show_bug.cgi?id=1921846
- https://security.gentoo.org/glsa/202208-10
- https://gitlab.freedesktop.org/spice/spice/-/issues/49
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1921847
- https://gitlab.freedesktop.org/spice/spice/-/commit/95a0cfac8a1c8eff50f05e65df945da3bb501fc9
- https://gitlab.freedesktop.org/spice/spice/-/commit/ca5bbc5692e052159bce1a75f55dc60b36078749
- https://access.redhat.com/errata/RHSA-2021:1924
- https://access.redhat.com/security/cve/cve-2021-20201
Frequently Asked Questions
What is CVE-2021-20201?
CVE-2021-20201 is a vulnerability in the Spice Project Spice software before version 0.14.92.
How does CVE-2021-20201 impact affected systems?
CVE-2021-20201 could allow remote attackers to cause a denial of service (CPU consumption) by performing many renegotiations within a single connection.
What is the severity of CVE-2021-20201?
CVE-2021-20201 has a severity rating of medium with a CVSS score of 5.3.
How can I fix CVE-2021-20201?
To fix CVE-2021-20201, update the Spice Project Spice software to version 0.14.92 or later.
Where can I find more information about CVE-2021-20201?
You can find more information about CVE-2021-20201 in the references provided: [Link 1](https://blog.qualys.com/product-tech/2011/10/31/tls-renegotiation-and-denial-of-service-attacks), [Link 2](https://bugzilla.redhat.com/show_bug.cgi?id=1921846), [Link 3](https://security.gentoo.org/glsa/202208-10).
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