From 6ddb730a27338983851248af59b128b995aad256 Mon Sep 17 00:00:00 2001 From: Jakub Jelen Date: Tue, 6 May 2025 22:43:31 +0200 Subject: [PATCH] CVE-2025-5351 pki_crypto: Avoid double-free on low-memory conditions Signed-off-by: Jakub Jelen Reviewed-by: Andreas Schneider --- src/pki_crypto.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/pki_crypto.c b/src/pki_crypto.c index 1a294493..42ff2271 100644 --- a/src/pki_crypto.c +++ b/src/pki_crypto.c @@ -1632,6 +1632,7 @@ ssh_string pki_key_to_blob(const ssh_key key, enum ssh_key_e type) bignum_safe_free(bn); bignum_safe_free(be); OSSL_PARAM_free(params); + params = NULL; #endif /* OPENSSL_VERSION_NUMBER */ break; } @@ -1803,6 +1804,7 @@ ssh_string pki_key_to_blob(const ssh_key key, enum ssh_key_e type) #if OPENSSL_VERSION_NUMBER >= 0x30000000L bignum_safe_free(bd); OSSL_PARAM_free(params); + params = NULL; #endif /* OPENSSL_VERSION_NUMBER */ break; }