Amazon Linux 2 (EOS) Security Advisory: ALAS2-2026-4106
Advisory Released Date: 2026-11-12
Advisory Updated Date: 2026-11-12
Severity:
Important
Issue Overview:
A flaw was found in libgsf. A heap-based buffer overflow vulnerability exists in the OLE2 document parser within the ole_info_read_metabat function. A remote attacker could exploit this flaw by enticing a user to open a specially crafted file. Successful exploitation could lead to arbitrary code execution or cause an application crash, resulting in a Denial of Service (DoS). (CVE-2026-116124)
Affected Packages:
libgsf
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 libgsf or yum update --advisory ALAS2-2026-4106 to update your system.
New Packages:
aarch64:
libgsf-1.14.26-7.amzn2.0.4.aarch64
libgsf-devel-1.14.26-7.amzn2.0.4.aarch64
libgsf-debuginfo-1.14.26-7.amzn2.0.4.aarch64
i686:
libgsf-1.14.26-7.amzn2.0.4.i686
libgsf-devel-1.14.26-7.amzn2.0.4.i686
libgsf-debuginfo-1.14.26-7.amzn2.0.4.i686
src:
libgsf-1.14.26-7.amzn2.0.4.src
x86_64:
libgsf-1.14.26-7.amzn2.0.4.x86_64
libgsf-devel-1.14.26-7.amzn2.0.4.x86_64
libgsf-debuginfo-1.14.26-7.amzn2.0.4.x86_64