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Bug 905320 (CVE-2021-20251) - <net-fs/samba-4.16.8: brute force vulnerability
Summary: <net-fs/samba-4.16.8: brute force vulnerability
Status: RESOLVED FIXED
Alias: CVE-2021-20251
Product: Gentoo Security
Classification: Unclassified
Component: Vulnerabilities (show other bugs)
Hardware: All Linux
: Normal normal
Assignee: Gentoo Security
URL: https://bugzilla.samba.org/show_bug.c...
Whiteboard: B2 [glsa+]
Keywords:
Depends on:
Blocks:
 
Reported: 2023-04-29 19:27 UTC by John Helmert III
Modified: 2023-09-17 05:58 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---

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Description John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2023-04-29 19:27:58 UTC 
CVE-2021-20251:

A flaw was found in samba. A race condition in the password lockout code may lead to the risk of brute force attacks being successful if special conditions are met.

Patches available, unsure about fixed version.
Comment 1 John Helmert III archtester Gentoo Infrastructure gentoo-dev Security 2023-08-24 03:45:31 UTC 
The set of patches for this were merged into 4.16.8.
Comment 2 Larry the Git Cow gentoo-dev 2023-09-17 05:56:51 UTC 
The bug has been referenced in the following commit(s):

https://gitweb.gentoo.org/data/glsa.git/commit/?id=5bfe8198b2352fa0ac46dbc59d078650dc544a7e

commit 5bfe8198b2352fa0ac46dbc59d078650dc544a7e
Author:     GLSAMaker <glsamaker@gentoo.org>
AuthorDate: 2023-09-17 05:56:23 +0000
Commit:     Sam James <sam@gentoo.org>
CommitDate: 2023-09-17 05:56:46 +0000

    [ GLSA 202309-06 ] Samba: Multiple Vulnerabilities
    
    Bug: https://bugs.gentoo.org/820566
    Bug: https://bugs.gentoo.org/821688
    Bug: https://bugs.gentoo.org/830983
    Bug: https://bugs.gentoo.org/832433
    Bug: https://bugs.gentoo.org/861512
    Bug: https://bugs.gentoo.org/866225
    Bug: https://bugs.gentoo.org/869122
    Bug: https://bugs.gentoo.org/878273
    Bug: https://bugs.gentoo.org/880437
    Bug: https://bugs.gentoo.org/886153
    Bug: https://bugs.gentoo.org/903621
    Bug: https://bugs.gentoo.org/905320
    Bug: https://bugs.gentoo.org/910334
    Signed-off-by: GLSAMaker <glsamaker@gentoo.org>
    Signed-off-by: Sam James <sam@gentoo.org>

 glsa-202309-06.xml | 86 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 86 insertions(+)