CVE-2023-39322

Memory exhaustion in QUIC connection handling in crypto/tls

Description

QUIC connections do not set an upper bound on the amount of data buffered when reading post-handshake messages, allowing a malicious QUIC connection to cause unbounded memory growth. With fix, connections now consistently reject messages larger than 65KiB in size.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.04%
Vendor Advisory go.dev
Affected: Go standard library crypto/tls
Published at:
Updated at:

References

Link Tags
https://go.dev/issue/62266 issue tracking
https://go.dev/cl/523039 patch
https://groups.google.com/g/golang-dev/c/2C5vbR-UNkI/m/L1hdrPhfBAAJ mailing list release notes
https://pkg.go.dev/vuln/GO-2023-2045 vendor advisory
https://security.netapp.com/advisory/ntap-20231020-0004/ third party advisory
https://security.gentoo.org/glsa/202311-09

Frequently Asked Questions

What is the severity of CVE-2023-39322?
CVE-2023-39322 has been scored as a high severity vulnerability.
How to fix CVE-2023-39322?
To fix CVE-2023-39322, 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-2023-39322 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-39322 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-39322?
CVE-2023-39322 affects Go standard library crypto/tls.
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