HOMEVULNERABILITIESCVE-2023-29483
HIGH

CVE-2023-29483

CWE-292Published: April 11, 2024· Updated: Jun 17, 2026

7.0
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2023-29483 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.0.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityHigh
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

Affected Vendors & Products

dnspython1 product(s)
dnspython
eventlet1 product(s)
eventlet
Fedora1 product(s)
fedora
netapp2 product(s)
bootstrap oshci compute node
Source: NVD CPE · 7 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://security.netapp.com/advisory/ntap-20240510-0001/
ADVISORYhttps://security.snyk.io/vuln/SNYK-PYTHON-DNSPYTHON-6241713
ADVISORYhttps://security.netapp.com/advisory/ntap-20240510-0001/
ADVISORYhttps://security.snyk.io/vuln/SNYK-PYTHON-DNSPYTHON-6241713

All References (22)

→
https://github.com/eventlet/eventlet/issues/913Exploit · Issue Tracking
→
https://github.com/eventlet/eventlet/releases/tag/v0.35.2Release Notes
→
https://github.com/rthalley/dnspython/issues/1045Exploit · Issue Tracking
→
https://github.com/rthalley/dnspython/releases/tag/v2.6.0Release Notes
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NLRKR57IFVKQC2GCXZBFLCLBAWBWL3F6/Mailing List
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VOHJOO3OM65UIUUUVDEXMCTXNM6LXZEH/Mailing List
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3BNSIK5NFYSAP53Y45GOCMOQHHDLGIF/Mailing List
→
https://security.netapp.com/advisory/ntap-20240510-0001/Third Party Advisory
→
https://security.snyk.io/vuln/SNYK-PYTHON-DNSPYTHON-6241713Third Party Advisory
→
https://www.dnspython.org/Product
→
https://github.com/eventlet/eventlet/issues/913Exploit · Issue Tracking
→
https://github.com/eventlet/eventlet/releases/tag/v0.35.2Release Notes
→
https://github.com/rthalley/dnspython/issues/1045Exploit · Issue Tracking
→
https://github.com/rthalley/dnspython/releases/tag/v2.6.0Release Notes
→
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NLRKR57IFVKQC2GCXZBFLCLBAWBWL3F6/Mailing List

Quick Facts

CVE IDCVE-2023-29483
CVSS Score7.0 / 10
SeverityHIGH
WeaknessCWE-292
CISA KEVNo
Affected4 vendor(s)
PublishedApr 11, 2024

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2023-29483 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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