Out-of-bounds Read Affecting libde265-debuginfo package, versions <0:1.0.18-1.amzn2023.0.3
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-18064718
- published21 Jul 2026
- disclosed21 Jul 2026
Introduced: 21 Jul 2026
NewCVE-2026-45382 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2023 libde265-debuginfo to version 0:1.0.18-1.amzn2023.0.3 or higher.
This issue was patched in ALAS2023-2026-1974.
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 1.0.19, decoder_context::decode_slice_unit_tiles (libde265/decctx.cc:920) reads pps.CtbAddrRStoTS[ctbAddrRS] at line 966 where ctbAddrRS = ctbY * ctbsWidth + ctbX is computed from PPS-supplied colBd[]/rowBd[] arrays without validating the result against CtbAddrRStoTS.size() == sps->PicSizeInCtbsY. A malformed PPS that passes set_derived_values but encodes geometry inconsistent with the SPS produces a ctbAddrRS past the allocation, causing a 4-byte heap-buffer-overflow READ. Version 1.0.19 fixes the issue.