CVE-2019-14834

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2019-14834
A vulnerability was found in dnsmasq before version 2.81, where the memory leak allows remote attackers to cause a denial of service (memory consumption) via vectors involving DHCP response creation.

3.7 /10

CVSS v3 : LOW

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

4.3 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:M/Au:N/C:N/I:N/A:P

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=69bc94779c2f035a9fffdb5327a54c3aeca73ed5
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14834 Issue Tracking Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/
Configurations

Configuration 1 (hide)

cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:*

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
History

12 Feb 2023, 23:34

Type Values Removed Values Added
Summary A flaw was found in the Dnsmasq application where a remote attacker can trigger a memory leak by sending specially crafted DHCP responses to the server. A successful attack is dependent on a specific configuration regarding the domain name set into the dnsmasq.conf file. Over time, the memory leak may cause the process to run out of memory and terminate, causing a denial of service. A vulnerability was found in dnsmasq before version 2.81, where the memory leak allows remote attackers to cause a denial of service (memory consumption) via vectors involving DHCP response creation.
References
  • {'url': 'https://access.redhat.com/errata/RHSA-2020:3878', 'name': 'https://access.redhat.com/errata/RHSA-2020:3878', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/errata/RHSA-2020:1715', 'name': 'https://access.redhat.com/errata/RHSA-2020:1715', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://bugzilla.redhat.com/show_bug.cgi?id=1764425', 'name': 'https://bugzilla.redhat.com/show_bug.cgi?id=1764425', 'tags': [], 'refsource': 'MISC'}
  • {'url': 'https://access.redhat.com/security/cve/CVE-2019-14834', 'name': 'https://access.redhat.com/security/cve/CVE-2019-14834', 'tags': [], 'refsource': 'MISC'}

02 Feb 2023, 21:18

Type Values Removed Values Added
References
  • {'url': 'http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=69bc94779c2f035a9fffdb5327a54c3aeca73ed5', 'name': 'http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=69bc94779c2f035a9fffdb5327a54c3aeca73ed5', 'tags': ['Patch', 'Vendor Advisory'], 'refsource': 'CONFIRM'}
  • {'url': 'https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/', 'name': 'FEDORA-2020-29b442f83e', 'tags': ['Mailing List', 'Third Party Advisory'], 'refsource': 'FEDORA'}
  • (MISC) http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=69bc94779c2f035a9fffdb5327a54c3aeca73ed5 -
  • (MISC) https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/ -
  • (MISC) https://access.redhat.com/errata/RHSA-2020:3878 -
  • (MISC) https://access.redhat.com/security/cve/CVE-2019-14834 -
  • (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1764425 -
  • (MISC) https://access.redhat.com/errata/RHSA-2020:1715 -
Summary A vulnerability was found in dnsmasq before version 2.81, where the memory leak allows remote attackers to cause a denial of service (memory consumption) via vectors involving DHCP response creation. A flaw was found in the Dnsmasq application where a remote attacker can trigger a memory leak by sending specially crafted DHCP responses to the server. A successful attack is dependent on a specific configuration regarding the domain name set into the dnsmasq.conf file. Over time, the memory leak may cause the process to run out of memory and terminate, causing a denial of service.

31 Jan 2023, 20:48

Type Values Removed Values Added
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/ - Third Party Advisory (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/ - Mailing List, Third Party Advisory
Information

Published : 2020-01-07 17:15

Updated : 2023-12-10 13:13

NVD link : CVE-2019-14834

Mitre link : CVE-2019-14834

CVE.ORG link : CVE-2019-14834

JSON object : View

Products Affected

thekelleys

  • dnsmasq

fedoraproject

  • fedora
CWE
CWE-770

Allocation of Resources Without Limits or Throttling