Source: pyjwt Version: 1.4.2-1 Severity: important Tags: security patch upstream Forwarded: https://github.com/jpadilla/pyjwt/pull/277 Control: found -1 0.2.1-1+deb8u1
Hi, the following vulnerability was published for pyjwt. CVE-2017-11424[0]: | In PyJWT 1.5.0 and below the `invalid_strings` check in | `HMACAlgorithm.prepare_key` does not account for all PEM encoded | public keys. Specifically, the PKCS1 PEM encoded format would be | allowed because it is prefaced with the string `-----BEGIN RSA PUBLIC | KEY-----` which is not accounted for. This enables | symmetric/asymmetric key confusion attacks against users using the | PKCS1 PEM encoded public keys, which would allow an attacker to craft | JWTs from scratch. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2017-11424 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11424 Please adjust the affected versions in the BTS as needed. I think this should be present as well in 0.2.1-1+deb8u1. Regards, Salvatore _______________________________________________ Secure-testing-team mailing list Secure-testing-team@lists.alioth.debian.org http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/secure-testing-team
