CVE-2022-30295

Publication date 6 May 2022

Last updated 24 July 2024

Ubuntu priority

Cvss 3 Severity Score

uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transaction IDs that may lead to DNS cache poisoning. This is related to a reset of a value to 0x2.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
uclibc	22.04 LTS jammy	Not in release
	20.04 LTS focal	Not in release
	18.04 LTS bionic	Not in release
	16.04 LTS xenial	Not in release
	14.04 LTS trusty	Not in release

Notes

sbeattie

ubuntu removed uClibc from the Ubuntu archive in 2011 and did not bring it back even when debian converted to using uClibc-ng in the src:uclibc pacakge.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
uclibc	Upstream: ?id=f73

Severity score breakdown

Parameter	Value
Base score	6.5 · Medium
Attack vector	Network
Attack complexity	High
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N