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CVE-2019-18397 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://access.redhat.com/errata/RHSA-2019:4326	CVE
https://access.redhat.com/errata/RHSA-2019:4361	CVE
https://access.redhat.com/errata/RHSA-2020:0291	CVE
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=944327	CVE	Issue TrackingThird Party Advisory
https://github.com/fribidi/fribidi/commit/034c6e9a1d296286305f4cfd1e0072b879f52568	CVE	Patch
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFS3N6KKXPI6ATDNEUFRSLX7R6BOBNIP/	CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W5UJRTG32FDNI7T637Q6PZYL3UCRR5HR/	CVE
https://marc.info/?l=oss-security&m=157322128105807&w=2	CVE	Third Party Advisory
https://security.gentoo.org/glsa/202003-41	CVE
https://security-tracker.debian.org/tracker/CVE-2019-18397	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:4326	[email protected]
https://access.redhat.com/errata/RHSA-2019:4361	[email protected]
https://access.redhat.com/errata/RHSA-2020:0291	[email protected]
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=944327	[email protected]	Issue TrackingThird Party Advisory
https://github.com/fribidi/fribidi/commit/034c6e9a1d296286305f4cfd1e0072b879f52568	[email protected]	Patch
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TFS3N6KKXPI6ATDNEUFRSLX7R6BOBNIP/	[email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W5UJRTG32FDNI7T637Q6PZYL3UCRR5HR/	[email protected]
https://marc.info/?l=oss-security&m=157322128105807&w=2	[email protected]	Third Party Advisory
https://security.gentoo.org/glsa/202003-41	[email protected]
https://security-tracker.debian.org/tracker/CVE-2019-18397	[email protected]	Third Party Advisory

see all 20 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-120	Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')	[email protected]

Affected Products

Product	Versions
gnu fribidi	>= 1.0.0, <= 1.0.7
CPE cpe:2.3:a:gnu:fribidi:::::::: Remediation No remediation found in references.
debian debian linux	10.0 8.0 9.0
CPE cpe:2.3:o:debian:debian_linux:10.0:::::::* cpe:2.3:o:debian:debian_linux:8.0:::::::* cpe:2.3:o:debian:debian_linux:9.0:::::::* Remediation No remediation found in references.

Change History

12 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 7, 2023	CVE Modified	[email protected]
Aug 18, 2020	CPE Deprecation Remap	[email protected]
Mar 19, 2020	CVE Modified	[email protected]
Jan 30, 2020	CVE Modified	[email protected]
Dec 23, 2019	CVE Modified	[email protected]
Dec 20, 2019	CVE Modified	[email protected]
Dec 19, 2019	CVE Modified	[email protected]
Dec 18, 2019	CVE Modified	[email protected]
Nov 19, 2019	Initial Analysis	[email protected]