Bug 1218387 (CVE-2023-51766) - VUL-0: CVE-2023-51766: exim: SMTP smuggling attack
Summary: VUL-0: CVE-2023-51766: exim: SMTP smuggling attack
Status: NEW
Alias: CVE-2023-51766
Product: openSUSE Distribution
Classification: openSUSE
Component: Other (show other bugs)
Version: Leap 15.6
Hardware: Other Other
: P3 - Medium : Normal (vote)
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
URL: https://smash.suse.de/issue/389285/
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Keywords:
Depends on:
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Reported: 2023-12-24 09:35 UTC by SMASH SMASH
Modified: 2024-07-20 13:19 UTC (History)
2 users (show)

See Also:
Found By: Security Response Team
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Blocker: ---
Marketing QA Status: ---
IT Deployment: ---

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Description SMASH SMASH 2023-12-24 09:35:03 UTC 
Exim through 4.97 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages that appear to originate from the Exim server, allowing bypass of an SPF protection mechanism. This occurs because Exim supports <LF>.<CR><LF> but some other popular e-mail servers do not.

References:
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2023-51766
Comment 1 OBSbugzilla Bot 2023-12-30 17:35:07 UTC 
This is an autogenerated message for OBS integration:
This bug (1218387) was mentioned in
https://build.opensuse.org/request/show/1135763 Factory / exim
Comment 2 OBSbugzilla Bot 2024-01-03 13:35:04 UTC 
This is an autogenerated message for OBS integration:
This bug (1218387) was mentioned in
https://build.opensuse.org/request/show/1136495 Backports:SLE-15-SP5 / exim
Comment 3 Marcus Meissner 2024-01-04 02:04:55 UTC 
openSUSE-SU-2024:0007-1: An update that fixes 7 vulnerabilities is now available.

Category: security (important)
Bug References: 1218387
CVE References: CVE-2022-3559,CVE-2023-42114,CVE-2023-42115,CVE-2023-42116,CVE-2023-42117,CVE-2023-42119,CVE-2023-51766
JIRA References: 
Sources used:
openSUSE Backports SLE-15-SP5 (src):    exim-4.97.1-bp155.5.9.1
Comment 4 OBSbugzilla Bot 2024-07-15 17:05:26 UTC 
This is an autogenerated message for OBS integration:
This bug (1218387) was mentioned in
https://build.opensuse.org/request/show/1187597 Backports:SLE-15-SP6 / exim