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x509asn1: replace single char with an array

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Although safe in this context, using a single char as an array may
cause invalid accesses to adjacent memory locations.

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This commit is contained in:
Patrick Monnerat 2019-02-18 15:40:34 +01:00
parent af143ef45e
commit fa86d32d59
1 changed files with 2 additions and 2 deletions
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4
lib/x509asn1.c
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@ -417,13 +417,13 @@ static const char *OID2str(const char *beg, const char *end, bool symbolic)
char *buf = (char *) NULL;
const curl_OID * op;
int n;
char dummy;
char dummy[1];
/* Convert an ASN.1 OID into its dotted or symbolic string representation.
Return the dynamically allocated string, or NULL if an error occurs. */
if(beg < end) {
n = encodeOID(&dummy, 0, beg, end);
n = encodeOID(dummy, 0, beg, end);
if(n >= 0) {
buf = malloc(n + 1);
if(buf) {