CVE-2024-0760

Publication date 23 July 2024

Last updated 26 July 2024

Ubuntu priority

Cvss 3 Severity Score

A malicious client can send many DNS messages over TCP, potentially causing the server to become unstable while the attack is in progress. The server may recover after the attack ceases. Use of ACLs will not mitigate the attack. This issue affects BIND 9 versions 9.18.1 through 9.18.27, 9.19.0 through 9.19.24, and 9.18.11-S1 through 9.18.27-S1.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
bind9	24.04 LTS noble	Fixed 1:9.18.28-0ubuntu0.24.04.1
	22.04 LTS jammy	Fixed 1:9.18.28-0ubuntu0.22.04.1
	20.04 LTS focal	Fixed 1:9.18.28-0ubuntu0.20.04.1
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected
bind9-libs	24.04 LTS noble	Not in release
	22.04 LTS jammy	Needs evaluation
	20.04 LTS focal	Needs evaluation
isc-dhcp	24.04 LTS noble	Needs evaluation
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

Notes

alexmurray

As of isc-dhcp-4.4.3-1, isc-dhcp vendors bind9 libs

mdeslaur

in focal and jammy, isc-dhcp uses the bind9-libs package This is unlikely to affect isc-dhcp's use of bind9-libs and the vendored bind9 libs, marking as negligible This issue doesn't appear to affect version older than 9.18

Severity score breakdown

Parameter	Value
Base score	7.5 · High
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H