| Summary: | need backport of "use correct digest when exporting keying material." from upstream, RFC violation [rhel-6] | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Stanislav Zidek <szidek> |
| Component: | openssl | Assignee: | Tomas Mraz <tmraz> |
| Status: | CLOSED ERRATA | QA Contact: | Stanislav Zidek <szidek> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 6.8 | CC: | hkario, mooney, tmraz |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | openssl-1.0.1e-51.el6 | Doc Type: | If docs needed, set a value |
| Doc Text: | Story Points: | --- | |
| Clone Of: | 1289620 | Environment: | |
| Last Closed: | 2017-03-21 10:11:52 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: | |
| Bug Depends On: | 1289620 | ||
| Bug Blocks: | |||
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHBA-2017-0660.html |
Same problem seems to be present on RHEL-6 (tested both openssl-1.0.1e-42.el6_7.5 and openssl-1.0.1e-48.el6). :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: :: [ LOG ] :: TLSv1.2 - ECDHE-RSA-AES128-SHA :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: :: [ BEGIN ] :: Running 'PYTHONPATH=tlslite-ng python -u tlslite-ng/scripts/tls.py server -l EXPORTER-test -L 40 -k localhost.key -c localhost.crt localhost:4433 >server.out 2>server.err &' :: [ PASS ] :: Command 'PYTHONPATH=tlslite-ng python -u tlslite-ng/scripts/tls.py server -l EXPORTER-test -L 40 -k localhost.key -c localhost.crt localhost:4433 >server.out 2>server.err &' (Expected 0, got 0) ... :: [ BEGIN ] :: Running 'openssl s_client -keymatexport EXPORTER-test -keymatexportlen 40 -connect localhost:4433 -cipher ECDHE-RSA-AES128-SHA </dev/null' ... Keying material exporter: Label: 'EXPORTER-test' Length: 40 bytes Keying material: FE36CFD8B323213AAD9E00716BA6E82310C1C17E912249B5B23C2A64F48C50BEF21CA8B1F271A004 --- DONE :: [ PASS ] :: Command 'openssl s_client -keymatexport EXPORTER-test -keymatexportlen 40 -connect localhost:4433 -cipher ECDHE-RSA-AES128-SHA </dev/null' (Expected 0, got 0) ... :: [ FAIL ] :: Check if exporters match (Assert: 'DD7A15A77B9FA3F6F274FE3A1FD204B94353763C648D17979B726A036F9383A1EE7DCBA945A39110' should equal 'FE36CFD8B323213AAD9E00716BA6E82310C1C17E912249B5B23C2A64F48C50BEF21CA8B1F271A004') :: [ BEGIN ] :: Running 'cat server.out' ... Exporter label: EXPORTER-test Exporter length: 40 Keying material: DD7A15A77B9FA3F6F274FE3A1FD204B94353763C648D17979B726A036F9383A1EE7DCBA945A39110 :: [ PASS ] :: Command 'cat server.out' (Expected 0, got 0) ... TLSv1-2-ECDHE-RSA-AES128-SHA result: FAIL +++ This bug was initially created as a clone of Bug #1289620 +++ Description of problem: Versions of OpenSSL before 1.0.1h have an issue with incorrect digests when interoperating with certain clients. It appears that the bug actually causes OpenSSL on RHEL 7 to violate RFC 5246. The upstream bug report is https://rt.openssl.org/Ticket/Display.html?user=guest&pass=guest&id=3319 The one-line patch from upstream that's in 1.0.1h and 1.0.2 is https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=4fdf917 Version-Release number of selected component (if applicable): openssl-1.0.1e-42.el7_1.9 openssl-libs-1.0.1e-42.el7_1.9 Additional info: This issue can trigger interoperability issues with any client (including devices like mobile phones) that support TLS 1.2 but offer older cipher suites. Especially on mobile devices, it's often not possible for the user to configure what ciphers their SSL stack prefers.