CVE-2018-16253

In sigverify in x509.c in axTLS version 2.1.3 and before, the PKCS1 v1.5 signature verification does not properly verify the ASN.1 metadata. Consequently, a remote attacker can forge signatures when small public exponents are being used, which could lead to impersonation through fake X.509...

CVE-2018-16253

CVE-2018-16253 describes a flaw in axTLS 2.1.3 and earlier where PKCS#1 v1.5 signature verification in sig_verify() of x509.c does not properly verify ASN.1 metadata, enabling a remote attacker to forge signatures under small public exponents and impersonate via fake X.509 certificates. The issue...

CVE-2018-16253

Removed by vendor...

CVE-2018-16150

Removed by vendor...

CVE-2018-16149

Removed by vendor...

CVE-2018-16150

In axTLS 2.1.3 and earlier, the PKCS#1 v1.5 signature verification in sig_verify() fails to reject excess data after the hash, enabling signature forgery when small public exponents are used. This can lead to impersonation via forged X.509 certificates. This CVE-2018-16150 is a variant of CVE-200...

CVE-2018-16149

In sigverify in x509.c in axTLS version 2.1.3 and before, the PKCS1 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.50...

CVE-2018-16149

axTLS vulnerability CVE-2018-16149 affects version 2.1.3 and earlier, where sig_verify() in x509.c blindly trusts ASN.1 declared lengths in PKCS#1 v1.5 signatures. When small public exponents are used, a remote attacker can create crafted signatures on X.509 certificates that trigger illegal memo...

CVE-2018-16152

In verifyemsapkcs1signature in gmprsapublickey.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data in the digestAlgorithm.parameters field during PKCS1 v1.5 signature verification. Consequently, a remote attacker can forge...

CVE-2018-15836

In verifysignedhash in lib/liboswkeys/signatures.c in Openswan before 2.6.50.1, the RSA implementation does not verify the value of padding string during PKCS1 v1.5 signature verification. Consequently, a remote attacker can forge signatures when small public exponents are being used. IKEv2...

CVE-2018-16151

In verifyemsapkcs1signature in gmprsapublickey.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data after the encoded algorithm OID during PKCS1 v1.5 signature verification. Similar to the flaw in the same version of strongSwa...

CVE-2018-16152

In verifyemsapkcs1signature in gmprsapublickey.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data in the digestAlgorithm.parameters field during PKCS1 v1.5 signature verification. Consequently, a remote attacker can forge...

CVE-2018-16152

In verifyemsapkcs1signature in gmprsapublickey.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data in the digestAlgorithm.parameters field during PKCS1 v1.5 signature verification. Consequently, a remote attacker can forge...

Design/Logic Flaw

In verifysignedhash in lib/liboswkeys/signatures.c in Openswan before 2.6.50.1, the RSA implementation does not verify the value of padding string during PKCS1 v1.5 signature verification. Consequently, a remote attacker can forge signatures when small public exponents are being used. IKEv2...

Design/Logic Flaw

In verifyemsapkcs1signature in gmprsapublickey.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data in the digestAlgorithm.parameters field during PKCS1 v1.5 signature verification. Consequently, a remote attacker can forge...

Authentication flaw

In verifyemsapkcs1signature in gmprsapublickey.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data after the encoded algorithm OID during PKCS1 v1.5 signature verification. Similar to the flaw in the same version of strongSwa...

CVE-2018-15836

In verifysignedhash in lib/liboswkeys/signatures.c in Openswan before 2.6.50.1, the RSA implementation does not verify the value of padding string during PKCS1 v1.5 signature verification. Consequently, a remote attacker can forge signatures when small public exponents are being used. IKEv2...

CVE-2018-15836

CVE-2018-15836 affects Openswan before 2.6.50.1. In verify_signed_hash() (lib/liboswkeys/signatures.c), the RSA PKCS#1 v1.5 padding value is not verified during signature verification, enabling signature forgery when small public exponents are used. IKEv2 signature verification is affected when R...

CVE-2018-16151

In verifyemsapkcs1signature in gmprsapublickey.c in the gmp plugin in strongSwan 4.x and 5.x before 5.7.0, the RSA implementation based on GMP does not reject excess data after the encoded algorithm OID during PKCS1 v1.5 signature verification. Similar to the flaw in the same version of strongSwa...

CVE-2018-16152

The GMP-based RSA implementation in strongSwan is affected by CVE-2018-16151 and CVE-2018-16152: the gmp_rsa_public_key.c ASN.1/algorithm identifiers do not strictly reject excess or NULL parameters in PKCS#1 v1.5 signatures, enabling potential Bleichenbacher-style forgery and impersonation when ...