CVE-2023-29483
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.86%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.0 HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H
- EPSS
- 1.86% probability · 78th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-292
- Affected
- eventlet/eventlet · dnspython/dnspython · fedoraproject/fedora · netapp/bootstrap os
- Source
- cve@mitre.org
References
- 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
- 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://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NLRKR57IFVKQC2GCXZBFLCLBAWBWL3F6/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VOHJOO3OM65UIUUUVDEXMCTXNM6LXZEH/
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.