Amazon Linux 2 Security Advisory: ALAS2-2026-3787
Advisory Released Date: 2026-07-08
Advisory Updated Date: 2026-07-08
A flaw was found in GStreamer's WavPack audio decoder in gst-plugins-good. When processing a specially crafted WavPack file, an integer overflow in the buffer size calculation (4 * block_samples * channels) in gst_wavpack_dec_handle_frame() causes a very small heap allocation. The WavPack library then writes decoded audio samples far beyond the allocated buffer, resulting in heap memory corruption. This affects both 32-bit and 64-bit systems since the arithmetic is performed in 32-bit integers before promotion to the allocation size type. A remote attacker could use this flaw to crash an application or potentially execute arbitrary code by convincing a user to open a malicious WavPack audio file. (CVE-2026-53705)
Affected Packages:
gstreamer-plugins-good
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 gstreamer-plugins-good or yum update --advisory ALAS2-2026-3787 to update your system.
aarch64:
gstreamer-plugins-good-0.10.31-20.amzn2.0.4.aarch64
gstreamer-plugins-good-debuginfo-0.10.31-20.amzn2.0.4.aarch64
i686:
gstreamer-plugins-good-0.10.31-20.amzn2.0.4.i686
gstreamer-plugins-good-debuginfo-0.10.31-20.amzn2.0.4.i686
noarch:
gstreamer-plugins-good-devel-docs-0.10.31-20.amzn2.0.4.noarch
src:
gstreamer-plugins-good-0.10.31-20.amzn2.0.4.src
x86_64:
gstreamer-plugins-good-0.10.31-20.amzn2.0.4.x86_64
gstreamer-plugins-good-debuginfo-0.10.31-20.amzn2.0.4.x86_64