Important: fribidi

Issue Overview:

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. (CVE-2019-18397)

Affected Packages:

fribidi

Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.

Issue Correction:
Run yum update fribidi to update your system.

New Packages:

aarch64:  
    fribidi-1.0.2-1.amzn2.1.aarch64  
    fribidi-devel-1.0.2-1.amzn2.1.aarch64  
    fribidi-debuginfo-1.0.2-1.amzn2.1.aarch64  
  
i686:  
    fribidi-1.0.2-1.amzn2.1.i686  
    fribidi-devel-1.0.2-1.amzn2.1.i686  
    fribidi-debuginfo-1.0.2-1.amzn2.1.i686  
  
src:  
    fribidi-1.0.2-1.amzn2.1.src  
  
x86_64:  
    fribidi-1.0.2-1.amzn2.1.x86_64  
    fribidi-devel-1.0.2-1.amzn2.1.x86_64  
    fribidi-debuginfo-1.0.2-1.amzn2.1.x86_64  

Additional References

Red Hat: CVE-2019-18397

Mitre: CVE-2019-18397