VulnerabilityModified
CVE-2021-23386
It creates buffers with allocUnsafe and does not always fill them before forming network packets.
MEDIUM 6.5EPSS 1.43%
Does this matter?
Lower severity and a low EPSS score (1.43%). Track it; it rarely justifies an emergency change on its own.
Description
This affects the package dns-packet before 5.2.2. It creates buffers with allocUnsafe and does not always fill them before forming network packets. This can expose internal application memory over unencrypted network when querying crafted invalid domain names.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.43% probability · 71th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-909
- Affected
- dns-packet project/dns-packet
- Source
- report@snyk.io
References
- https://github.com/mafintosh/dns-packet/commit/25f15dd0fedc53688b25fd053ebbdffe3d5c1c56Patch, Third Party Advisory
- https://hackerone.com/bugs?subject=user&%3Breport_id=968858Permissions Required, Third Party Advisory
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1295719Patch, Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-DNSPACKET-1293563Patch, Third Party Advisory
- https://github.com/mafintosh/dns-packet/commit/25f15dd0fedc53688b25fd053ebbdffe3d5c1c56Patch, Third Party Advisory
- https://hackerone.com/bugs?subject=user&%3Breport_id=968858Permissions Required, Third Party Advisory
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1295719Patch, Third Party Advisory
- https://snyk.io/vuln/SNYK-JS-DNSPACKET-1293563Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.