CVE-2023-29483

HIGH EPSS 76.5%
Published Apr 11, 20242y ago · Modified Jun 17, 20261w ago
7.0 CVSS 3.1
High
Find Similar
Published Apr 11, 2024 2y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.0
Exploitability
2.2
Impact
4.7
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity Low
Availability High

Threat Intelligence

EPSS Exploit Probability
76.5% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-292

Affected Products 7

VendorProductVersionRange
eventleteventlet* <0.35.2
dnspythondnspython* <2.6.0
fedoraprojectfedora38any
fedoraprojectfedora39any
fedoraprojectfedora40any
netappbootstrap_os*any
netapphci_compute_node*any

References 12

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.