905321 – (CVE-2023-28450) net-dns/dnsmasq: excessive EDNS.0 UDP packet size limit

Bug 905321 (CVE-2023-28450) - net-dns/dnsmasq: excessive EDNS.0 UDP packet size limit

Summary: net-dns/dnsmasq: excessive EDNS.0 UDP packet size limit

Status:	CONFIRMED

Alias:	CVE-2023-28450

Product:	Gentoo Security
Classification:	Unclassified
Component:	Vulnerabilities (show other bugs)
Hardware:	All Linux

Importance:	Normal minor (vote)
Assignee:	Gentoo Security

URL:	https://thekelleys.org.uk/gitweb/?p=d...
Whiteboard:	B4 [upstream/ebuild]
Keywords:

Depends on:
Blocks:

Reported:	2023-04-29 19:31 UTC by John Helmert III
Modified:	2024-01-07 05:40 UTC (History)
CC List:	1 user (show)

See Also:
Package list:
Runtime testing required:	---

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Description John Helmert III archtester

2023-04-29 19:31:18 UTC

CVE-2023-28450:

An issue was discovered in Dnsmasq before 2.90. The default maximum EDNS.0 UDP packet size was set to 4096 but should be 1232 because of DNS Flag Day 2020.

"Set the default maximum DNS UDP packet size to 1232.

http://www.dnsflagday.net/2020/ refers.

Thanks to Xiang Li for the prompt."

Please bump to 2.90.