Integer Overflow or Wraparound Affecting libde265-debuginfo package, versions <0:1.0.18-1.amzn2023.0.2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-AMZN2023-LIBDE265DEBUGINFO-17887680
- published8 Jul 2026
- disclosed19 Jun 2026
Introduced: 19 Jun 2026
CVE-2026-49346 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2023 libde265-debuginfo to version 0:1.0.18-1.amzn2023.0.2 or higher.
This issue was patched in ALAS2023-2026-1918.
NVD Description
Note: Versions mentioned in the description apply only to the upstream libde265-debuginfo package and not the libde265-debuginfo package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.
libde265 is an open source implementation of the h.265 video codec. Prior to version 1.1.0, a crafted H.265 bitstream with large SPS dimensions and 16-bit bit depth causes a signed integer overflow in de265_image_get_buffer() (libde265/image.cc:128). The overflow wraps the plane allocation size to a small value (~1 KB), but the subsequent fill_image() call computes the real size using size_t, writing ~4 GB into the undersized heap buffer. Version 1.1.0 patches the issue.