{ "CVE_data_meta" : { "ASSIGNER" : "cve@mitre.org", "ID" : "CVE-2018-16149", "STATE" : "PUBLIC" }, "affects" : { "vendor" : { "vendor_data" : [ { "product" : { "product_data" : [ { "product_name" : "n/a", "version" : { "version_data" : [ { "version_value" : "n/a" } ] } } ] }, "vendor_name" : "n/a" } ] } }, "data_format" : "MITRE", "data_type" : "CVE", "data_version" : "4.0", "description" : { "description_data" : [ { "lang" : "eng", "value" : "In sig_verify() in x509.c in axTLS version 2.1.3 and before, the PKCS#1 v1.5 signature verification blindly trusts the declared lengths in the ASN.1 structure. Consequently, when small public exponents are being used, a remote attacker can generate purposefully crafted signatures (and put them on X.509 certificates) to induce illegal memory access and crash the verifier." } ] }, "problemtype" : { "problemtype_data" : [ { "description" : [ { "lang" : "eng", "value" : "n/a" } ] } ] }, "references" : { "reference_data" : [ { "name" : "[axtls-general] 20181105 Re: Problems of PKCS#1 v1.5 RSA Signature Verification", "refsource" : "MLIST", "url" : "https://sourceforge.net/p/axtls/mailman/message/36459928/" }, { "name" : "https://github.com/igrr/axtls-8266/commit/5efe2947ab45e81d84b5f707c51d1c64be52f36c", "refsource" : "CONFIRM", "url" : "https://github.com/igrr/axtls-8266/commit/5efe2947ab45e81d84b5f707c51d1c64be52f36c" } ] } }