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Bug 1827425 - exim 4.92 segfaults on SRV queries that return CNAME
Summary: exim 4.92 segfaults on SRV queries that return CNAME
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora EPEL
Classification: Fedora
Component: exim
Version: epel7
Hardware: Unspecified
OS: Unspecified
unspecified
high
Target Milestone: ---
Assignee: Jaroslav Škarvada
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2020-04-23 21:16 UTC by Marcel Haerry
Modified: 2020-05-15 06:04 UTC (History)
4 users (show)

Fixed In Version: exim-4.93-2.el8 exim-4.93-2.el7
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-05-15 05:14:30 UTC
Type: Bug
Embargoed:

Attachments (Terms of Use)

Description Marcel Haerry 2020-04-23 21:16:29 UTC 
When enabling CSA validation and the sending hostname returns a CNAME for (any) SRV queries. E.g. dig SRV _client._smtp.random-host.kuix.de exim segfaults.

Background discussion: https://lists.exim.org/lurker/message/20190314.120943.413421e0.el.html and previous emails.

Fix: https://github.com/Exim/exim/commit/14bc9cf085aff7bd5147881e5b7068769a29b026

This fix went into 4.93 - without it you can't enable CSA validation as it will fail for any domain that has wildcard CNAMES enabled.
Comment 1 Marcel Haerry 2020-04-23 22:24:53 UTC 
Just submitted https://src.fedoraproject.org/rpms/exim/pull-request/6 as a quickfix, but can we get 4.93 for EL7?
Comment 2 Jaroslav Škarvada 2020-04-27 11:57:51 UTC 
I don't have problem with 4.93 in EPEL-7, I will rebase it.
Comment 3 Fedora Update System 2020-04-27 22:05:54 UTC 
FEDORA-EPEL-2020-9868c86f67 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-9868c86f67
Comment 4 Fedora Update System 2020-04-27 22:06:22 UTC 
FEDORA-EPEL-2020-951d2464e6 has been submitted as an update to Fedora EPEL 8. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-951d2464e6
Comment 5 Fedora Update System 2020-04-28 04:47:35 UTC 
FEDORA-EPEL-2020-9868c86f67 has been pushed to the Fedora EPEL 7 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-9868c86f67

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 6 Fedora Update System 2020-04-28 06:20:50 UTC 
FEDORA-EPEL-2020-951d2464e6 has been pushed to the Fedora EPEL 8 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-951d2464e6

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 7 Marcel Haerry 2020-04-28 20:01:23 UTC 
Thank you, testing on EPEL-7 looks great!
Comment 8 Fedora Update System 2020-04-29 17:52:25 UTC 
FEDORA-EPEL-2020-a258dba917 has been submitted as an update to Fedora EPEL 8. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-a258dba917
Comment 9 Fedora Update System 2020-04-29 17:53:02 UTC 
FEDORA-EPEL-2020-4410b3265a has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-4410b3265a
Comment 10 Fedora Update System 2020-04-30 06:08:07 UTC 
FEDORA-EPEL-2020-a258dba917 has been pushed to the Fedora EPEL 8 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-a258dba917

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 11 Fedora Update System 2020-04-30 06:09:21 UTC 
FEDORA-EPEL-2020-4410b3265a has been pushed to the Fedora EPEL 7 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2020-4410b3265a

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.
Comment 12 Fedora Update System 2020-05-15 05:14:30 UTC 
FEDORA-EPEL-2020-a258dba917 has been pushed to the Fedora EPEL 8 stable repository.
If problem still persists, please make note of it in this bug report.
Comment 13 Fedora Update System 2020-05-15 06:04:05 UTC 
FEDORA-EPEL-2020-4410b3265a has been pushed to the Fedora EPEL 7 stable repository.
If problem still persists, please make note of it in this bug report.
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