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add NULL checks to Base64 encode/decode

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This commit is contained in:
Jeremiah Mackey
2026-04-06 22:15:07 +00:00
parent 1dddc1daf5
commit 362eda5b25
1 changed files with 9 additions and 0 deletions
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wolfcrypt/src/coding.c
+9
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@@ -174,6 +174,9 @@ int Base64_Decode_nonCT(const byte* in, word32 inLen, byte* out, word32* outLen)
int ret;
const byte maxIdx = BASE64DECODE_TABLE_SZ + BASE64_MIN - 1;
if ((in == NULL && inLen > 0) || out == NULL || outLen == NULL)
return BAD_FUNC_ARG;
while (inLen > 3) {
int pad3 = 0;
int pad4 = 0;
@@ -273,6 +276,9 @@ int Base64_Decode(const byte* in, word32 inLen, byte* out, word32* outLen)
word32 j = 0;
int ret;
if ((in == NULL && inLen > 0) || out == NULL || outLen == NULL)
return BAD_FUNC_ARG;
while (inLen > 3) {
int pad3 = 0;
int pad4 = 0;
@@ -474,6 +480,9 @@ static int DoBase64_Encode(const byte* in, word32 inLen, byte* out,
word32 outSz = (inLen + 3 - 1) / 3 * 4;
word32 addSz = (outSz + BASE64_LINE_SZ - 1) / BASE64_LINE_SZ; /* new lines */
if (in == NULL && inLen > 0)
return BAD_FUNC_ARG;
if (escaped == WC_ESC_NL_ENC)
addSz *= 3; /* instead of just \n, we're doing %0A triplet */
else if (escaped == WC_NO_NL_ENC)