Amazon Linux 2 Security Advisory: ALAS2-2026-3850
Advisory Released Date: 2026-08-04
Advisory Updated Date: 2026-08-04
A flaw was found in xdgmime. A heap-based buffer overflow can be triggered in _xdg_mime_magic_parse_magic_line() in the xdgmimemagic.c file on little-endian systems when an attacker-controlled MIME magic file in a user-writable XDG data location (e.g., in the $XDG_DATA_HOME/mime/magic path) is parsed by an application performing MIME type detection (e.g., via g_content_type_guess()). When performing byte-swap, incorrect pointer arithmetic on the write side causes an out-of-bounds write of 2 bytes, resulting in an application crash or memory corruption. (CVE-2026-16118)
Affected Packages:
glib2
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 glib2 or yum update --advisory ALAS2-2026-3850 to update your system.
aarch64:
glib2-2.56.1-9.amzn2.0.15.aarch64
glib2-devel-2.56.1-9.amzn2.0.15.aarch64
glib2-fam-2.56.1-9.amzn2.0.15.aarch64
glib2-static-2.56.1-9.amzn2.0.15.aarch64
glib2-tests-2.56.1-9.amzn2.0.15.aarch64
glib2-debuginfo-2.56.1-9.amzn2.0.15.aarch64
i686:
glib2-2.56.1-9.amzn2.0.15.i686
glib2-devel-2.56.1-9.amzn2.0.15.i686
glib2-fam-2.56.1-9.amzn2.0.15.i686
glib2-static-2.56.1-9.amzn2.0.15.i686
glib2-tests-2.56.1-9.amzn2.0.15.i686
glib2-debuginfo-2.56.1-9.amzn2.0.15.i686
noarch:
glib2-doc-2.56.1-9.amzn2.0.15.noarch
src:
glib2-2.56.1-9.amzn2.0.15.src
x86_64:
glib2-2.56.1-9.amzn2.0.15.x86_64
glib2-devel-2.56.1-9.amzn2.0.15.x86_64
glib2-fam-2.56.1-9.amzn2.0.15.x86_64
glib2-static-2.56.1-9.amzn2.0.15.x86_64
glib2-tests-2.56.1-9.amzn2.0.15.x86_64
glib2-debuginfo-2.56.1-9.amzn2.0.15.x86_64