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Merge pull request #8350 from waleed-elmelegy-arm/fix-null-dereference-in-x509-cert-write

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Fix possible NULL dereference issue in X509 cert_write program
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Gilles Peskine 2023-10-18 10:03:36 +00:00 committed by GitHub
commit 62418dd20b
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3
ChangeLog.d/fix-issue-x509-cert_write.txt Normal file
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@ -0,0 +1,3 @@
Bugfix
* Fix possible NULL dereference issue in X509 cert_write program if an entry
in the san parameter is not separated by a colon.

4
programs/x509/cert_write.c
View File

@ -583,6 +583,10 @@ usage:
if ((subtype_value = strchr(q, ':')) != NULL) {
*subtype_value++ = '\0';
} else {
mbedtls_printf(
"Invalid argument for option SAN: Entry must be of the form TYPE:value\n");
goto usage;
}
if (strcmp(q, "RFC822") == 0) {
cur->node.type = MBEDTLS_X509_SAN_RFC822_NAME;