National Vulnerability Database

National Vulnerability Database

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CVE-2019-18397 Detail

Current Description

A buffer overflow in the fribidi_get_par_embedding_levels_ex() function in lib/fribidi-bidi.c of GNU FriBidi through 1.0.7 allows an attacker to cause a denial of service or possibly execute arbitrary code by delivering crafted text content to a user, when this content is then rendered by an application that uses FriBidi for text layout calculations. Examples include any GNOME or GTK+ based application that uses Pango for text layout, as this internally uses FriBidi for bidirectional text layout. For example, the attacker can construct a crafted text file to be opened in GEdit, or a crafted IRC message to be viewed in HexChat.


View Analysis Description

Severity

 


CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  7.8 HIGH
Vector:  CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://access.redhat.com/errata/RHSA-2019:4326
https://access.redhat.com/errata/RHSA-2019:4361
https://access.redhat.com/errata/RHSA-2020:0291
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=944327 Issue Tracking  Third Party Advisory 
https://github.com/fribidi/fribidi/commit/034c6e9a1d296286305f4cfd1e0072b879f52568 Patch 
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TFS3N6KKXPI6ATDNEUFRSLX7R6BOBNIP/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W5UJRTG32FDNI7T637Q6PZYL3UCRR5HR/
https://marc.info/?l=oss-security&m=157322128105807&w=2 Third Party Advisory 
https://security-tracker.debian.org/tracker/CVE-2019-18397 Third Party Advisory 
https://security.gentoo.org/glsa/202003-41

Weakness Enumeration

CWE-ID CWE Name Source
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') cwe source acceptance level NIST  

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Change History

8 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-18397
NVD Published Date:
11/13/2019
NVD Last Modified:
08/18/2020
Source:
MITRE