CVE-2023-29483 — DEPRECATED: Trusting Self-reported DNS Name in Dnspython
Severity
7.0HIGHNVD
EPSS
5.0%
top 10.33%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedApr 11
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 vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:HExploitability: 2.2 | Impact: 4.7
Affected Packages5 packages
Also affects: Fedora 38, 39, 40