openssl/test/test_asn1_parse.cnf

openssl_conf = openssl_init

# Comment out the next line to ignore configuration errors
config_diagnostics = 1

[openssl_init]
oid_section = oids

[oids]
testoid1 = 1.2.3.4.1
testoid2 = A Very Long OID Name, 1.2.3.4.2
testoid3 = ,1.2.3.4.3
Harden asn1 oid loader to invalid inputs In the event that a config file contains this sequence: ======= openssl_conf = openssl_init config_diagnostics = 1 [openssl_init] oid_section = oids [oids] testoid1 = 1.2.3.4.1 testoid2 = A Very Long OID Name, 1.2.3.4.2 testoid3 = ,1.2.3.4.3 ====== The leading comma in testoid3 can cause a heap buffer overflow, as the parsing code will move the string pointer back 1 character, thereby pointing to an invalid memory space correct the parser to detect this condition and handle it by treating it as if the comma doesn't exist (i.e. an empty long oid name) Reviewed-by: Hugo Landau <hlandau@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/22957) 2023-12-06 04:24:20 +08:00			`openssl_conf = openssl_init`

			`# Comment out the next line to ignore configuration errors`
			`config_diagnostics = 1`

			`[openssl_init]`
			`oid_section = oids`

			`[oids]`
			`testoid1 = 1.2.3.4.1`
			`testoid2 = A Very Long OID Name, 1.2.3.4.2`
			`testoid3 = ,1.2.3.4.3`