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.
Source:
MITRE
View Analysis Description
Analysis 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.
Source:
MITRE
Severity
CVSS 3.x Severity and Metrics:
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.0 Severity and Metrics:
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P)
References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID |
CWE Name |
Source |
| CWE-120 |
Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') |
NIST
|
Change History
1 change record found
- show changes
Initial Analysis -
11/19/2019 10:53:14 AM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:a:gnu:fribidi:*:*:*:*:*:*:*:* versions from (including) 1.0.0 up to (including) 1.0.7 |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:o:debian:debian_linux:10:*:*:*:*:*:*:* |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
*cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
*cpe:2.3:o:debian:debian_linux:10:*:*:*:*:*:*:* |
| Added |
CVSS V2 |
|
NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) |
| Added |
CVSS V2 Metadata |
|
Victim must voluntarily interact with attack mechanism |
| Added |
CVSS V3.1 |
|
NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| Added |
CWE |
|
NIST CWE-120 |
| Changed |
Reference Type |
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=944327 No Types Assigned |
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=944327 Issue Tracking, Third Party Advisory |
| Changed |
Reference Type |
https://github.com/fribidi/fribidi/commit/034c6e9a1d296286305f4cfd1e0072b879f52568 No Types Assigned |
https://github.com/fribidi/fribidi/commit/034c6e9a1d296286305f4cfd1e0072b879f52568 Patch |
| Changed |
Reference Type |
https://marc.info/?l=oss-security&m=157322128105807&w=2 No Types Assigned |
https://marc.info/?l=oss-security&m=157322128105807&w=2 Third Party Advisory |
| Changed |
Reference Type |
https://security-tracker.debian.org/tracker/CVE-2019-18397 No Types Assigned |
https://security-tracker.debian.org/tracker/CVE-2019-18397 Third Party Advisory |