CVE-2022-0934

CWE-416 — Use After Free9 documents9 sources
Severity
7.5HIGH
EPSS
0.0%
top 93.22%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Thekelleys DnsmasqRedhat Enterprise Linux
Timeline
PublishedAug 29
Latest updateJan 15

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 vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶NVDthekelleys/dnsmasq< 2.87
▶Debiandnsmasq< 2.85-1+deb11u1+3
▶CVEListV5dnsmasqNot-Known

Also affects: Enterprise Linux 8.0, 9.0

Patches

Patch: bugzilla.redhat.com ↗Patch: bugzilla.redhat.com ↗

🔴Vulnerability Details

3
GHSA
GHSA-wpmh-x6rm-9p34: A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq↗2022-08-29
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OSV
CVE-2022-0934: A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq↗2022-08-29
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CVEList
CVE-2022-0934: A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq↗2022-08-29
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📋Vendor Advisories

5
Oracle
Oracle Oracle Communications Risk Matrix: Oracle Linux 8 (dnsmasq) — CVE-2022-0934↗2023-01-15
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Microsoft
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.↗2022-08-09
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Ubuntu
Dnsmasq vulnerability↗2022-05-10
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Red Hat
dnsmasq: Heap use after free in dhcp6_no_relay↗2022-03-28
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Debian
CVE-2022-0934: dnsmasq - A single-byte, non-arbitrary write/use-after-free flaw was found in dnsmasq. Thi...↗2022
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