VulnerabilityModified
CVE-2022-0934
A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq.
HIGH 7.5EPSS 2.48%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.48%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. This flaw allows an attacker who sends a crafted packet processed by dnsmasq, potentially causing a denial of service.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 2.48% probability · 84th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- thekelleys/dnsmasq · redhat/enterprise linux
- Source
- secalert@redhat.com
References
- https://access.redhat.com/security/cve/CVE-2022-0934Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2057075Issue Tracking, Patch, Third Party Advisory
- https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.htmlMailing List, Vendor Advisory
- https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=03345ecefeb0d82e3c3a4c28f27c3554f0611b39Broken Link
- https://access.redhat.com/security/cve/CVE-2022-0934Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2057075Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/11/msg00035.html
- https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.htmlMailing List, Vendor Advisory
- https://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=03345ecefeb0d82e3c3a4c28f27c3554f0611b39Broken Link
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.