CVE-2026-15997 - Native ARM SHA3 / SHAKE `restoreFullState` fails to detect size_t underflow in a crafted encoded state

CVE-2026-15997 - Native ARM SHA3 / SHAKE `restoreFullState` fails to detect size_t underflow in a crafted encoded state

https://cvefeed.io/rssfeed/latest.atom / Fri, 07/17/2026 - 01:06
CVE ID :CVE-2026-15997
Published : July 16, 2026, 10:17 p.m. | 31 minutes ago
Description :Out-of-bounds write vulnerability in Legion of the Bouncy Castle Inc. BC-LTS bcprov-lts8on on ARM allows Overflow Buffers. This vulnerability is associated with program files https://github.Com/bcgit/bc-lts-java/blob/main/native_c/arm/sha/shake.C, https://github.Com/bcgit/bc-lts-java/blob/main/native_c/arm/sha/sha3.C. This issue affects BC-LTS: from 2.73.0 before 2.73.12.1. Issue is only applicable if application involved is accepting memoable SHA3 / SHAKE states from potentially untrusted sources.
Severity: 1.7 | LOW
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