CVE-2023-29483

Description

eventlet before 0.35.2, as used in dnspython before 2.6.0, allows remote attackers to interfere with DNS name resolution by quickly sending an invalid packet from the expected IP address and source port, aka a "TuDoor" attack. In other words, dnspython does not have the preferred behavior in which the DNS name resolution algorithm would proceed, within the full time window, in order to wait for a valid packet. NOTE: dnspython 2.6.0 is unusable for a different reason that was addressed in 2.6.1.

Category

7.0
CVSS
Severity: High
CVSS 3.1 •
EPSS 1.08% Top 25%
Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org Vendor Advisory fedoraproject.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.dnspython.org/
https://github.com/rthalley/dnspython/releases/tag/v2.6.0
https://github.com/rthalley/dnspython/issues/1045
https://security.snyk.io/vuln/SNYK-PYTHON-DNSPYTHON-6241713
https://github.com/eventlet/eventlet/issues/913
https://github.com/eventlet/eventlet/releases/tag/v0.35.2
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VOHJOO3OM65UIUUUVDEXMCTXNM6LXZEH/ vendor advisory
https://security.netapp.com/advisory/ntap-20240510-0001/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NLRKR57IFVKQC2GCXZBFLCLBAWBWL3F6/ vendor advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3BNSIK5NFYSAP53Y45GOCMOQHHDLGIF/ vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-29483?
CVE-2023-29483 has been scored as a high severity vulnerability.
How to fix CVE-2023-29483?
To fix CVE-2023-29483, 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-2023-29483 being actively exploited in the wild?
It is possible that CVE-2023-29483 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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