CVE-2023-3036

Out of Bounds Slice index in cfnts leads to remote panic

Description

An unchecked read in NTP server in github.com/cloudflare/cfnts prior to commit 783490b https://github.com/cloudflare/cfnts/commit/783490b913f05e508a492cd7b02e3c4ec2297b71  enabled a remote attacker to trigger a panic by sending an NTSAuthenticator packet with extension length longer than the packet contents.

Categories

8.6
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.47%
Third-Party Advisory github.com
Affected: Cloudflare cfnts
Published at:
Updated at:

References

Frequently Asked Questions

What is the severity of CVE-2023-3036?
CVE-2023-3036 has been scored as a high severity vulnerability.
How to fix CVE-2023-3036?
To fix CVE-2023-3036, 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-2023-3036 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-3036 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-2023-3036?
CVE-2023-3036 affects Cloudflare cfnts.
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