CVE-2022-0934
Published: 7 April 2022
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
dnsmasq Launchpad, Ubuntu, Debian |
focal |
Released
(2.80-1.1ubuntu1.5)
|
| impish |
Released
(2.85-1ubuntu2.1)
|
|
| jammy |
Released
(2.86-1.1ubuntu0.1)
|
|
| trusty |
Released
(2.68-1ubuntu0.2+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Needs triage
|
|
| xenial |
Released
(2.75-1ubuntu0.16.04.10+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| bionic |
Released
(2.79-1ubuntu0.6)
|
|
| kinetic |
Released
(2.86-1.1ubuntu1)
|
|
|
Patches: upstream: https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=03345ecefeb0d82e3c3a4c28f27c3554f0611b39 vendor: https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2022q1/016272.html |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |