Denial of service in spice



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-20201
CWE-ID CWE-400
Exploitation vector Network
Public exploit N/A
Vulnerable software
 SPICE
Universal components / Libraries / Software for developers

Vendor SPICE

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU53962

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-20201

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can execute multiple renegotiations within a single connection and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

SPICE: 0.14.0 - 0.14.91

CPE2.3 External 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


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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