CVE-2021-3448
Summary
| CVE | CVE-2021-3448 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2021-04-08 23:15:00 UTC |
| Updated | 2023-11-07 03:38:00 UTC |
| Description | A flaw was found in dnsmasq in versions before 2.85. When configured to use a specific server for a given network interface, dnsmasq uses a fixed port while forwarding queries. An attacker on the network, able to find the outgoing port used by dnsmasq, only needs to guess the random transmission ID to forge a reply and get it accepted by dnsmasq. This flaw makes a DNS Cache Poisoning attack much easier. The highest threat from this vulnerability is to data integrity. |
Risk And Classification
Problem Types: NVD-CWE-Other
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Fedoraproject | Fedora | 32 | All | All | All |
| Operating System | Fedoraproject | Fedora | 33 | All | All | All |
| Operating System | Fedoraproject | Fedora | 34 | All | All | All |
| Application | Oracle | Communications Cloud Native Core Network Function Cloud Native Environment | 1.9.0 | All | All | All |
| Operating System | Redhat | Enterprise Linux | 8.0 | All | All | All |
| Application | Thekelleys | Dnsmasq | All | All | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| [SECURITY] Fedora 32 Update: dnsmasq-2.85-1.fc32 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| [SECURITY] Fedora 34 Update: dnsmasq-2.85-1.fc34 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| [SECURITY] Fedora 33 Update: dnsmasq-2.85-1.fc33 - package-announce - Fedora Mailing-Lists | lists.fedoraproject.org | ||
| 1939368 – (CVE-2021-3448) CVE-2021-3448 dnsmasq: fixed outgoing port used when --server is used with an interface name | MISC | bugzilla.redhat.com | |
| [SECURITY] Fedora 32 Update: dnsmasq-2.85-1.fc32 - package-announce - Fedora Mailing-Lists | FEDORA | lists.fedoraproject.org | |
| Oracle Critical Patch Update Advisory - January 2022 | MISC | www.oracle.com | |
| Dnsmasq: DNS cache poisoning (GLSA 202105-20) — Gentoo security | GENTOO | security.gentoo.org | |
| [SECURITY] Fedora 33 Update: dnsmasq-2.85-1.fc33 - package-announce - Fedora Mailing-Lists | FEDORA | lists.fedoraproject.org | |
| [SECURITY] Fedora 34 Update: dnsmasq-2.85-1.fc34 - package-announce - Fedora Mailing-Lists | FEDORA | lists.fedoraproject.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 159657 Oracle Enterprise Linux Security Update for dnsmasq security and bug fix update (ELSA-2021-4153)
- 180418 Debian Security Update for dnsmasq (CVE-2021-3448)
- 198395 Ubuntu Security Notification for Dnsmasq vulnerability (USN-4976-1)
- 239786 Red Hat Update for dnsmasq (RHSA-2021:4153)
- 281351 Fedora Security Update for dnsmasq (FEDORA-2021-9433bedebd)
- 281352 Fedora Security Update for dnsmasq (FEDORA-2021-62a5062b2d)
- 281353 Fedora Security Update for dnsmasq (FEDORA-2021-5cd2571751)
- 296063 Oracle Solaris 11.4 Support Repository Update (SRU) 45.119.2 Missing (CPUAPR2022)
- 500151 Alpine Linux Security Update for dnsmasq
- 503801 Alpine Linux Security Update for dnsmasq
- 670484 EulerOS Security Update for dnsmasq (EulerOS-SA-2021-2242)
- 670510 EulerOS Security Update for dnsmasq (EulerOS-SA-2021-2268)
- 670700 EulerOS Security Update for dnsmasq (EulerOS-SA-2021-2458)
- 672760 EulerOS Security Update for dnsmasq (EulerOS-SA-2023-1499)
- 690218 Free Berkeley Software Distribution (FreeBSD) Security Update for dnsmasq (5b72b1ff-877c-11eb-bd4f-2f1d57dafe46)
- 710096 Gentoo Linux Dnsmasq DNS cache poisoning vulnerability (GLSA 202105-20)
- 751285 SUSE Enterprise Linux Security Update for dnsmasq (SUSE-SU-2021:3530-1)
- 751289 OpenSUSE Security Update for dnsmasq (openSUSE-SU-2021:3530-1)
- 751300 OpenSUSE Security Update for dnsmasq (openSUSE-SU-2021:1426-1)
- 752059 SUSE Enterprise Linux Security Update for dnsmasq (SUSE-SU-2022:1288-1)
- 752062 SUSE Enterprise Linux Security Update for dnsmasq (SUSE-SU-2022:1289-1)
- 753098 SUSE Enterprise Linux Security Update for dnsmasq (SUSE-SU-2022:14941-1)
- 900277 CBL-Mariner Linux Security Update for dnsmasq 2.84
- 903668 Common Base Linux Mariner (CBL-Mariner) Security Update for dnsmasq (4079)
- 940078 AlmaLinux Security Update for dnsmasq (ALSA-2021:4153)
- 960788 Rocky Linux Security Update for dnsmasq (RLSA-2021:4153)