CVE-2022-30295

MEDIUM

uClibc-ng <1.0.40, uClibc <0.9.33.2 - Info Disclosure

Title source: llm

Description

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.

References (2)

[Third Party Advisory] https://www.nozominetworks.com/blog/nozomi-networks-discovers-unpatched-dns-bug-in-popular-c-standard-library-putting-iot-at-risk/

[Third Party Advisory, US Government Resource] https://www.kb.cert.org/vuls/id/473698

Scores

CVSS v3 6.5

EPSS 0.0033

EPSS Percentile 55.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N

Details

CWE

CWE-330

Status published

Products (2)

uclibc/uclibc < 0.9.33.2

uclibc-ng_project/uclibc-ng < 1.0.40

Published May 06, 2022

Tracked Since Feb 18, 2026