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#118

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This commit is contained in:
Juliusz Sosinowicz
2021-10-18 14:38:47 +02:00
parent 81c3f4b925
commit 1d5f4a6664
1 changed files with 6 additions and 0 deletions
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6
src/keys.c
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@@ -3119,6 +3119,12 @@ int SetKeysSide(WOLFSSL* ssl, enum encrypt_side side)
if (copy) { if (copy) {
int clientCopy = 0; int clientCopy = 0;
/* Sanity check that keys == ssl->secure_renegotiation->tmp_keys.
* Otherwise the memcpy calls would copy overlapping memory
* and cause UB. Fail early. */
if (keys == &ssl->keys)
return BAD_FUNC_ARG;
if (ssl->options.side == WOLFSSL_CLIENT_END && wc_encrypt) if (ssl->options.side == WOLFSSL_CLIENT_END && wc_encrypt)
clientCopy = 1; clientCopy = 1;
else if (ssl->options.side == WOLFSSL_SERVER_END && wc_decrypt) else if (ssl->options.side == WOLFSSL_SERVER_END && wc_decrypt)