CVE-2019-19334
Libyang YANG File Parse Identityref Buffer Overflow Vulnerability
Description
In all versions of libyang before 1.0-r5, a stack-based buffer overflow was discovered in the way libyang parses YANG files with a leaf of type "identityref". An application that uses libyang to parse untrusted YANG files may be vulnerable to this flaw, which would allow an attacker to cause a denial of service or possibly gain code execution.
INFO
Published Date :
Dec. 6, 2019, 4:15 p.m.
Last Modified :
Nov. 7, 2023, 3:07 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2019-19334
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
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-2019-19334.
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-2019-19334 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-19334 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]
Nov. 07, 2023
Action Type Old Value New Value Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PETB6TVMFV5KUD4IKVP2JPLBCYHUGSAJ/ [No types assigned] Added Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RL54JMS7XW7PI6JC4BFSNNLSX5AINQUL/ [No types assigned] Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/PETB6TVMFV5KUD4IKVP2JPLBCYHUGSAJ/ Removed Reference Red Hat, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/RL54JMS7XW7PI6JC4BFSNNLSX5AINQUL/ -
CVE Modified by [email protected]
Dec. 23, 2019
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2019:4360 [No Types Assigned] -
CVE Modified by [email protected]
Dec. 18, 2019
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/RL54JMS7XW7PI6JC4BFSNNLSX5AINQUL/ [No Types Assigned] -
Initial Analysis by [email protected]
Dec. 18, 2019
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19334 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-19334 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://github.com/CESNET/libyang/commit/6980afae2ff9fcd6d67508b0a3f694d75fd059d6 No Types Assigned https://github.com/CESNET/libyang/commit/6980afae2ff9fcd6d67508b0a3f694d75fd059d6 Patch, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/PETB6TVMFV5KUD4IKVP2JPLBCYHUGSAJ/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/PETB6TVMFV5KUD4IKVP2JPLBCYHUGSAJ/ Mailing List, Third Party Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:a:cesnet:libyang:0.11:r1:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.11:r2:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.12:r1:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.12:r2:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.13:r1:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.13:r2:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.14:r1:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.15:r1:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.16:r1:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.16:r2:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:0.16:r3:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:1.0:r1:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:1.0:r2:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:1.0:r3:*:*:*:*:*:* *cpe:2.3:a:cesnet:libyang:1.0:r4:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Dec. 18, 2019
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/PETB6TVMFV5KUD4IKVP2JPLBCYHUGSAJ/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-19334 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-2019-19334
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.34 }} 0.04%
score
0.68134
percentile