CVE-2022-30295
published 2022-05-06CVE-2022-30295: 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…
PriorityP338medium6.5CVSS 3.1
AVNACHPRNUINSUCHILAN
EPSS
11.26%
95.4th percentile
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.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | uclibc | — | — |
| msrc | cbl2_uclibc-ng_1.0.41-1_on_cbl_mariner_2.0 | — | — |
| msrc | cm1_uclibc-ng_1.0.41-1_on_cbl_mariner_1.0 | — | — |
| uclibc-ng_project | uclibc-ng | <= 1.0.40 | — |
| uclibc | uclibc | <= 0.9.33.2 | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N
nvdv2.04.0MEDIUMAV:N/AC:H/Au:N/C:P/I:P/A:N
osv6.5MEDIUM
vendor_debian6.5LOW
vendor_msrc6.5MEDIUM
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Microsoft
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.
vendor_msrc·2022-05-10·CVSS 6.5
CVE-2022-30295 [MEDIUM] CWE-330 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.
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.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Marin
Debian
CVE-2022-30295: uclibc - uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transac...
vendor_debian·2022·CVSS 6.5
CVE-2022-30295 [MEDIUM] CVE-2022-30295: uclibc - uClibc-ng through 1.0.40 and uClibc through 0.9.33.2 use predictable DNS transac...
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.
Scope: local
bookworm: open
bullseye: open
forky: open
sid: open
trixie: open
GHSA
GHSA-gv7v-mf7r-p93f: uClibc-ng through 1
ghsa_unreviewed·2022-05-07
CVE-2022-30295 [MEDIUM] GHSA-gv7v-mf7r-p93f: uClibc-ng through 1
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.
OSV
CVE-2022-30295: uClibc-ng through 1
osv·2022-05-06·CVSS 6.5
CVE-2022-30295 [MEDIUM] CVE-2022-30295: uClibc-ng through 1
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.
No detection rules found.
No public exploits indexed.
https://www.kb.cert.org/vuls/id/473698https://www.nozominetworks.com/blog/nozomi-networks-discovers-unpatched-dns-bug-in-popular-c-standard-library-putting-iot-at-risk/https://www.kb.cert.org/vuls/id/473698https://www.nozominetworks.com/blog/nozomi-networks-discovers-unpatched-dns-bug-in-popular-c-standard-library-putting-iot-at-risk/
2022-05-06
Published