GnuTLS certtool template parsing heap-buffer overflow (off-by-one)
CVE-2025-32990 is a heap-based buffer overflow in GnuTLS affecting the template parsing logic of the certtool utility. According to the provided content, when certtool reads certain settings from a template file, an off-by-one condition leads to an out-of-bounds NULL pointer write on the heap. This memory corruption condition occurs during parsing of attacker-controlled or malformed template input and can cause the process to crash. The issue is described as residing specifically in certtool's template parsing path rather than the core TLS protocol handling path.
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Cross-references every affected SKU, including bundled OEM variants.
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