CVE-2023-26964

Public Exploit

Description

An issue was discovered in hyper v0.13.7. h2-0.2.4 Stream stacking occurs when the H2 component processes HTTP2 RST_STREAM frames. As a result, the memory and CPU usage are high which can lead to a Denial of Service (DoS).

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.21%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/hyperium/hyper/issues/2877 issue tracking exploit
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZYRZ5Y2ALATKKPIITAFAJIS4TR4LUAHO/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZHBAE7LQARMPUEEV4TWET4D7G6WCWBUD/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-26964?
CVE-2023-26964 has been scored as a high severity vulnerability.
How to fix CVE-2023-26964?
To fix CVE-2023-26964, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-26964 being actively exploited in the wild?
It is possible that CVE-2023-26964 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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