CVE-2019-14834
"dnsmasq Denial of Service Memory Leak"
Description
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.
INFO
Published Date :
Jan. 7, 2020, 5:15 p.m.
Last Modified :
Feb. 12, 2023, 11:34 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
2.2
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2019-14834.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-14834 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-14834 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Feb. 12, 2023
Action Type Old Value New Value Changed Description 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. Removed Reference https://access.redhat.com/errata/RHSA-2020:1715 [No Types Assigned] Removed Reference https://access.redhat.com/errata/RHSA-2020:3878 [No Types Assigned] Removed Reference https://access.redhat.com/security/cve/CVE-2019-14834 [No Types Assigned] Removed Reference https://bugzilla.redhat.com/show_bug.cgi?id=1764425 [No Types Assigned] Added CWE Red Hat, Inc. CWE-770 -
CVE Modified by [email protected]
Feb. 02, 2023
Action Type Old Value New Value Changed Description 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. Removed Reference http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=69bc94779c2f035a9fffdb5327a54c3aeca73ed5 [Patch, Vendor Advisory] Removed Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/ [Mailing List, Third Party Advisory] Added Reference https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/ [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2020:1715 [No Types Assigned] Added Reference http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=69bc94779c2f035a9fffdb5327a54c3aeca73ed5 [No Types Assigned] Added Reference https://access.redhat.com/errata/RHSA-2020:3878 [No Types Assigned] Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1764425 [No Types Assigned] Added Reference https://access.redhat.com/security/cve/CVE-2019-14834 [No Types Assigned] Removed CWE Red Hat, Inc. CWE-770 -
Modified Analysis by [email protected]
Jan. 31, 2023
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/ Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/ Mailing List, Third Party Advisory -
CVE Modified by [email protected]
Dec. 04, 2020
Action Type Old Value New Value Removed CWE Red Hat, Inc. CWE-200 Added CWE Red Hat, Inc. CWE-770 Removed CWE Reason CWE-200 / More specific CWE option available -
Modified Analysis by [email protected]
Oct. 09, 2020
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/ Third Party Advisory Removed CWE NIST CWE-400 Added CWE NIST CWE-770 Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 29, 2020
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/JU474LT66BHNVFG5C4GEV3VTZNAEJ3BS/ [No Types Assigned] -
Reanalysis by [email protected]
Jan. 28, 2020
Action Type Old Value New Value Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P) Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L -
Initial Analysis by [email protected]
Jan. 08, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Changed Reference Type http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=69bc94779c2f035a9fffdb5327a54c3aeca73ed5 No Types Assigned http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=69bc94779c2f035a9fffdb5327a54c3aeca73ed5 Patch, Vendor Advisory Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14834 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14834 Issue Tracking, Patch, Third Party Advisory Added CWE NIST CWE-400 Added CPE Configuration OR *cpe:2.3:a:thekelleys:dnsmasq:*:*:*:*:*:*:*:* versions up to (excluding) 2.81
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-14834 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2019-14834
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.35 }} -0.05%
score
0.68509
percentile