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Bug 1689271

Summary: Wrong alert sent when client uses PKCS#1 signatures in TLS 1.3 [rhel-8]
Product: Red Hat Enterprise Linux 8 Reporter: Alicja Kario <hkario>
Component: nssAssignee: nss-nspr-maint <nss-nspr-maint>
Status: CLOSED CURRENTRELEASE QA Contact: BaseOS QE Security Team <qe-baseos-security>
Severity: low Docs Contact:
Priority: low    
Version: 8.0CC: dueno, mthacker, nss-nspr-maint, omoris, rcadova, rrelyea, ssorce, toneata
Target Milestone: rcKeywords: Triaged, ZStream
Target Release: 8.1Flags: pm-rhel: mirror+
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of:
: 1728259 (view as bug list) Environment:
Last Closed: 2019-08-09 17:57:51 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1684604    
Bug Blocks: 1728259    

Description Alicja Kario 2019-03-15 14:52:53 UTC
Description of problem:
Server rejects the CertificateVerify message signed with PKCS#1 algorithm and sha256, sha384 and sha512 hash using incorrect alert - decode_error instead of illegal_parameter

Version-Release number of selected component (if applicable):
nss-3.41.0-5.el8.x86_64

How reproducible:
always

Steps to Reproduce:
1. tlsfuzzer test-tls13-certificate-verify.py

Actual results:
check rsa_pkcs1_sha256 signature is refused ...
Error encountered while processing node <tlsfuzzer.expect.ExpectAlert object at 0x7f0457fafd90> (child: <tlsfuzzer.expect.ExpectClose object at 0x7f0457fafdd0>) with last message being: <tlslite.messages.Message object at 0x7f0456f394d0>
Error while processing
Traceback (most recent call last):
  File "scripts/test-tls13-certificate-verify.py", line 583, in main
    runner.run()
  File "/home/hkario/dev/tlsfuzzer/tlsfuzzer/runner.py", line 227, in run
    node.process(self.state, msg)
  File "/home/hkario/dev/tlsfuzzer/tlsfuzzer/expect.py", line 1412, in process
    raise AssertionError(problem_desc)
AssertionError: Expected alert description "illegal_parameter" does not match received "decrypt_error"

Expected results:
check rsa_pkcs1_sha256 signature is refused ...
ok

Additional info:
server does send correct alerts for SHA224, SHA1 and md5 signatures

Comment 2 Simo Sorce 2019-05-29 19:10:37 UTC
Is this going to be fixed in the rebase?
If so set appropriate flags please