Bug 1213386 (CVE-2020-25720) - VUL-0: CVE-2020-25720: samba: create Child permission should not allow full write to all attributes
Summary: VUL-0: CVE-2020-25720: samba: create Child permission should not allow full w...
Status: RESOLVED FIXED
Alias: CVE-2020-25720
Product: SUSE Security Incidents
Classification: Novell Products
Component: Incidents (show other bugs)
Version: unspecified
Hardware: Other Other
: P3 - Medium : Normal
Target Milestone: ---
Assignee: Security Team bot
QA Contact: Security Team bot
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Reported: 2023-07-17 09:04 UTC by Thomas Leroy
Modified: 2024-02-27 12:30 UTC (History)
2 users (show)

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Marketing QA Status: ---
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Comment 1 Thomas Leroy 2023-07-17 09:45:57 UTC 
A few commits mentioning this CVE have been backported to a stable branch:
b7af8aa2552e0690aac58fb98e3134b71f678ece
307b2e65d51903f6805460a2633ebe809d4052ab
3ecdec683b60cf100b1c031841b709c91191c8f2

But I don't think these fully fix the issue.
Comment 2 Samuel Cabrero 2023-12-20 10:28:43 UTC 
It was fixed in samba 4.17.8 and only affects samba when running as an AD DC (was tech-preview, dropped in 15-SP5). Reassign to security team to close it.
Comment 3 Thomas Leroy 2024-01-05 08:28:23 UTC 
(In reply to Samuel Cabrero from comment #2)
> It was fixed in samba 4.17.8 and only affects samba when running as an AD DC
> (was tech-preview, dropped in 15-SP5). Reassign to security team to close it.

Thanks Samuel. So for all maintained codestreams, AD DC mode is either in tech-preview or dropped (for codestreams more recent than 15-SP5?) ?
Comment 4 Samuel Cabrero 2024-01-05 09:45:28 UTC 
(In reply to Thomas Leroy from comment #3)
> (In reply to Samuel Cabrero from comment #2)
> > It was fixed in samba 4.17.8 and only affects samba when running as an AD DC
> > (was tech-preview, dropped in 15-SP5). Reassign to security team to close it.
> 
> Thanks Samuel. So for all maintained codestreams, AD DC mode is either in
> tech-preview or dropped (for codestreams more recent than 15-SP5?) ?

Yes, it has always been in tech-preview.
Comment 5 Thomas Leroy 2024-01-05 12:41:12 UTC 
(In reply to Samuel Cabrero from comment #4)
> (In reply to Thomas Leroy from comment #3)
> > (In reply to Samuel Cabrero from comment #2)
> > > It was fixed in samba 4.17.8 and only affects samba when running as an AD DC
> > > (was tech-preview, dropped in 15-SP5). Reassign to security team to close it.
> > 
> > Thanks Samuel. So for all maintained codestreams, AD DC mode is either in
> > tech-preview or dropped (for codestreams more recent than 15-SP5?) ?
> 
> Yes, it has always been in tech-preview.

Thanks. So SUSE:ALP:Source:Standard:1.0 and SUSE:SLE-15-SP5:Update are not affected, and the rest is wontfix. Closing.
Comment 6 Maintenance Automation 2024-02-27 12:30:30 UTC 
SUSE-SU-2023:2929-1: An update that solves six vulnerabilities and has two security fixes can now be installed.

Category: security (important)
Bug References: 1212375, 1213170, 1213171, 1213172, 1213173, 1213174, 1213384, 1213386
CVE References: CVE-2020-25720, CVE-2022-2127, CVE-2023-3347, CVE-2023-34966, CVE-2023-34967, CVE-2023-34968
Sources used:
openSUSE Leap 15.5 (src): samba-4.17.9+git.367.dae41ffdd1f-150500.3.5.1
Basesystem Module 15-SP5 (src): samba-4.17.9+git.367.dae41ffdd1f-150500.3.5.1
SUSE Linux Enterprise High Availability Extension 15 SP5 (src): samba-4.17.9+git.367.dae41ffdd1f-150500.3.5.1

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.