Public exploit available
Public proof-of-concept or exploit code exists (ExploitDB / Metasploit / Nuclei).

CVE-2017-14491

CWE-787 — Out-of-bounds WriteCWE-122 — Heap-based Buffer OverflowCWE-119 — Buffer Overflow16 documents10 sources
Severity
9.8CRITICAL
EPSS
57.8%
top 1.82%
CISA KEV
Not in KEV
Exploit
PoC available
Public exploit / PoC exists
Affected products
22
Platform External/dnsmasqArista EOSArubanetworks Arubaos+19 more
Timeline
PublishedOct 4
Latest updateApr 30

Description

Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages22 packages

▶Androidplatform/external/dnsmasq8.1:0 — 8.1:2021-03-01+3
▶Debiandnsmasq< 2.78-1+3
▶Ubuntudnsmasq< 2.68-1ubuntu0.2+1
▶NVDarista/eos4.16 — 4.16.13m+3

Also affects: Debian Linux 7.0, 7.1, 8.0, 9.0, Ubuntu Linux 12.04, 14.04, 16.04, 17.04

Patches

Patch: cert-portal.siemens.com ↗Patch: cert-portal.siemens.com ↗

🔴Vulnerability Details

5
GHSA
GHSA-m4px-ph3f-7964: Heap-based buffer overflow in dnsmasq before 2↗2022-04-30
▶
OSV
CVE-2017-14491: In do_rfc1035_name of util↗2021-03-01
▶
OSV
CVE-2017-14491: Heap-based buffer overflow in dnsmasq before 2↗2017-10-04
▶
CVEList
CVE-2017-14491: Heap-based buffer overflow in dnsmasq before 2↗2017-10-02
▶
OSV
dnsmasq vulnerabilities↗2017-10-02
▶

💥Exploits & PoCs

1
Exploit-DB
Dnsmasq < 2.78 - 2-byte Heap Overflow↗2017-10-02
▶

📋Vendor Advisories

6
Android
CVE-2017-14491: Android Security Bulletin 2021-03-01 CVE: CVE-2017-14491 Severity: HIGH Type: RCE Affected AOSP versions: 8↗2021-03-01
▶
Red Hat
dnsmasq: Improper bounds checking leads to a buffer overread↗2019-08-09
▶
Ubuntu
Dnsmasq vulnerabilities↗2017-10-03
▶
Red Hat
dnsmasq: heap overflow in the code responsible for building DNS replies↗2017-10-02
▶
Ubuntu
Dnsmasq vulnerabilities↗2017-10-02
▶

💬Community

3
Bugzilla
CVE-2019-14513 dnsmasq: Improper bounds checking leads to a buffer overread↗2019-08-09
▶
Bugzilla
CVE-2017-14491 CVE-2017-14492 CVE-2017-14493 CVE-2017-14494 CVE-2017-14495 CVE-2017-14496 dnsmasq: various flaws [fedora-all]↗2017-10-02
▶
Bugzilla
CVE-2017-14491 dnsmasq: heap overflow in the code responsible for building DNS replies↗2017-09-26
▶