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In the event of a failure in PEM_read_bio_ex() we free the buffers we allocated for the header and data buffers. However we were not clearing the ptrs stored in *header and *data. Since, on success, the caller is responsible for freeing these ptrs this can potentially lead to a double free if the caller frees them even on failure. Thanks to Dawei Wang for reporting this issue. Based on a proposed patch by Kurt Roeckx. CVE-2022-4450 Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> |
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.. | ||
build.info | ||
pem_all.c | ||
pem_err.c | ||
pem_info.c | ||
pem_lib.c | ||
pem_local.h | ||
pem_oth.c | ||
pem_pk8.c | ||
pem_pkey.c | ||
pem_sign.c | ||
pem_x509.c | ||
pem_xaux.c | ||
pvkfmt.c |