CVE-2023-29483
First published: Thu Apr 11 2024(Updated: )
Dnspython is vulnerable to a denial of service, caused by a flaw in stub resolver when a bad-in-some-way response arrives before a legitimate one on the UDP port dnspython is using for that query. By sending a specially crafted query, a remote attacker could exploit this vulnerability to cause a denial of service condition.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| pip/dnspython | <2.6.1 | 2.6.1 |
| pip/eventlet | <0.35.2 | 0.35.2 |
| redhat/dnspython | <2.6.0 | 2.6.0 |
| IBM Rational Team Concert | <=1.0.0, 1.0.1, 1.0.2, 1.0.2.1 |
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Reference Links
- https://nvd.nist.gov/vuln/detail/CVE-2023-29483
- https://github.com/eventlet/eventlet/issues/913
- https://github.com/rthalley/dnspython/issues/1045
- https://github.com/eventlet/eventlet/releases/tag/v0.35.2
- https://github.com/rthalley/dnspython/releases/tag/v2.6.0
- https://security.snyk.io/vuln/SNYK-PYTHON-DNSPYTHON-6241713
- https://github.com/eventlet/eventlet/commit/51e3c4928d4938beb576eff34f3bf97e6e64e6b4
- https://github.com/rthalley/dnspython/commit/0ea5ad0a4583e1f519b9bcc67cfac381230d9cf2
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VOHJOO3OM65UIUUUVDEXMCTXNM6LXZEH
- https://www.dnspython.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NLRKR57IFVKQC2GCXZBFLCLBAWBWL3F6
- https://security.netapp.com/advisory/ntap-20240510-0001
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3BNSIK5NFYSAP53Y45GOCMOQHHDLGIF
- https://github.com/advisories/GHSA-3rq5-2g8h-59hc (Advisory)
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NLRKR57IFVKQC2GCXZBFLCLBAWBWL3F6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VOHJOO3OM65UIUUUVDEXMCTXNM6LXZEH/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X3BNSIK5NFYSAP53Y45GOCMOQHHDLGIF/
- https://security.netapp.com/advisory/ntap-20240510-0001/
- https://www.dnspython.org/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2274521
- https://www.dnspython.org/news/2.6.0rc1/
- https://github.com/rthalley/dnspython/commit/f66e25b5f549acf66d1fb6ead13eb3cff7d09af3
- https://github.com/rthalley/dnspython/commit/e093299a49967696b1c58b68e4767de5031a3e46
- https://github.com/rthalley/dnspython/issues/1051#issuecomment-1949383928
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2274682
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2274681
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2274685
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2274683
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2274684
- https://access.redhat.com/errata/RHSA-2024:3275
- https://access.redhat.com/errata/RHSA-2024:3483
- https://access.redhat.com/errata/RHSA-2024:0045
- https://access.redhat.com/errata/RHSA-2024:4699
- https://access.redhat.com/errata/RHSA-2024:4846
- https://access.redhat.com/errata/RHSA-2024:4960
- https://access.redhat.com/errata/RHSA-2024:9423
- https://bugzilla.redhat.com/show_bug.cgi?id=2274520
- https://www.ibm.com/support/pages/node/7176346 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2023-29483?
CVE-2023-29483 has a severity rating that categorizes it as a denial of service vulnerability.
How do I fix CVE-2023-29483?
To fix CVE-2023-29483, update dnspython to version 2.6.1 or later, or downgrade to a secure version if using affected packages.
Which software is affected by CVE-2023-29483?
CVE-2023-29483 affects dnspython versions before 2.6.1, eventlet versions before 0.35.2, and IBM Concert Software versions up to 1.0.2.1.
What type of vulnerability is CVE-2023-29483?
CVE-2023-29483 is a denial of service vulnerability that can be exploited through specially crafted queries.
How can an attacker exploit CVE-2023-29483?
An attacker can exploit CVE-2023-29483 by sending a specially crafted query that disrupts the dnspython stub resolver's handling of responses.
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