7

CVE-2023-29483: dnspython

Modified
AliasesSUSE-RU-2026:2816-1SUSE-SU-2024:2605-1SUSE-SU-2024:2626-1
Published 11-04-2024Last modified 04-11-2025

Vulnerability summary

CVE-2023-29483 is a high (CVSS 7.0) vulnerability in dnspython. EPSS estimates a 1.86% chance of exploitation in the next 30 days, higher than 79.2% of scored vulnerabilities. 2 public exploits are recorded.

Priority
Prioritisepublic exploit

Public exploit (GitHub, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
7.0/10
010
High · v3.1 (CVE.org)
EPSS score
1.86%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2github

Advisory lineage

Upstream 0 · Downstream 1 · Related 3
RHSA-2024:0045CGA-2PV2-W6Q3-FXXHCGA-45J3-M65V-V5P3CGA-W2C7-RCGX-6FMQ

Timeline

  1. 11-04-2024
    PublishedVulnerability first disclosed.
  2. 04-11-2025
    Last modifiedVulnerability information updated.

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 metrics

8 scores · 8 sources · 1 version

EPSS trend

Probability

1.86%

Chance of exploitation in the next 30 days

Percentile

79%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.86% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • githubUnverified

    Dnspython

    Maturity: poc

  • githubUnverified

    Eventlet

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Suse132 products
  • python-dnspython&distro=SUSE Enterprise Storage 7.1< 1.15.0-150000.3.10.2
  • python-dnspython&distro=SUSE Linux Enterprise High Performance Computing 15 SP2-LTSS< 1.15.0-150000.3.10.2
  • python-dnspython&distro=SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS< 1.15.0-150000.3.10.2
  • python-dnspython&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS< 1.15.0-150000.3.10.2
  • python-dnspython&distro=SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS< 1.15.0-150000.3.10.2
Opensuse6 products
  • python-dnspython&distro=openSUSE Leap 15.5< 2.3.0-150400.12.6.1 | < 1.15.0-150000.3.5.1 | < 1.15.0-150000.3.10.2
  • python-dnspython&distro=openSUSE Leap 15.6< 2.3.0-150400.12.6.1
  • python-dnspython&distro=openSUSE Leap Micro 5.5< 1.15.0-150000.3.5.1 | < 1.15.0-150000.3.10.2
  • python-dnspython&distro=openSUSE Tumbleweed< 2.6.1-1.1 | < 2.8.0-2.1
  • python-eventlet&distro=openSUSE Tumbleweed< 0.36.1-1.1 | < 0.41.2-1.1
Chainguard2 products
  • kubeflow-pipelines-visualization-server< 2.2.0-r0
  • py3-dnspython< 2.6.1-r0
PyPI2 products
  • dnspython< 2.6.1
  • eventlet< 0.35.2
Redhat2 products
  • python-dns< 0:1.15.0-12.el8_10 | < 0:2.6.1-3.el9
  • python3-dns< 0:1.15.0-12.el8_10 | < 0:2.6.1-3.el9
Wolfi2 products
  • kubeflow-pipelines-visualization-server< 2.2.0-r0
  • py3-dnspython< 2.6.1-r0
Debian1 product
  • dnspythonAll versions (No fix recorded) | < 2.6.0-1
Dnspython1 product
Eventlet1 product
Fedoraproject1 product
Netapp1 product
Ubuntu1 product
  • dnspythonAll versions (No fix recorded)

12 vendors · 152 products

References

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