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IDProjectCategoryView StatusLast Update
0016267CentOS-7selinux-policypublic2019-07-12 21:07
PrioritynormalSeverityminorReproducibilityhave not tried
Status newResolutionopen 
PlatformOSOS Version7
Product Version 
Target VersionFixed in Version 
Summary0016267: SELinux is preventing /usr/sbin/sshd from using the 'signull' accesses on a process.
DescriptionDescription of problem:
SELinux is preventing /usr/sbin/sshd from using the 'signull' accesses on a process.

***** Plugin catchall (100. confidence) suggests **************************

If you believe that sshd should be allowed signull access on processes labeled unconfined_service_t by default.
Then you should report this as a bug.
You can generate a local policy module to allow this access.
allow this access for now by executing:
# ausearch -c 'sshd' --raw | audit2allow -M my-sshd
# semodule -i my-sshd.pp

Additional Information:
Source Context system_u:system_r:sshd_t:s0-s0:c0.c1023
Target Context system_u:system_r:unconfined_service_t:s0
Target Objects Unknown [ process ]
Source sshd
Source Path /usr/sbin/sshd
Port <Unknown>
Host (removed)
Source RPM Packages openssh-server-7.4p1-16.el7.x86_64
Target RPM Packages
Policy RPM selinux-policy-3.13.1-229.el7_6.12.noarch
Selinux Enabled True
Policy Type targeted
Enforcing Mode Enforcing
Host Name (removed)
Platform Linux (removed) 3.10.0-957.21.3.el7.x86_64 #1 SMP
                              Tue Jun 18 16:35:19 UTC 2019 x86_64 x86_64
Alert Count 4
First Seen 2019-06-28 16:00:56 PDT
Last Seen 2019-06-28 16:04:00 PDT
Local ID 4c78ad3f-e2f8-44a4-8ae3-3ea759cf0146

Raw Audit Messages
type=AVC msg=audit(1561763040.671:280): avc: denied { signull } for pid=36999 comm="sshd" scontext=system_u:system_r:sshd_t:s0-s0:c0.c1023 tcontext=system_u:system_r:unconfined_service_t:s0 tclass=process permissive=0

type=SYSCALL msg=audit(1561763040.671:280): arch=x86_64 syscall=kill success=no exit=EACCES a0=8d8c a1=0 a2=b a3=6 items=0 ppid=23644 pid=36999 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=7 comm=sshd exe=/usr/sbin/sshd subj=system_u:system_r:sshd_t:s0-s0:c0.c1023 key=(null)

Hash: sshd,sshd_t,unconfined_service_t,process,signull

Version-Release number of selected component:
Additional Informationreporter: libreport-
hashmarkername: setroubleshoot
kernel: 3.10.0-957.21.3.el7.x86_64
reproducible: Not sure how to reproduce the problem
type: libreport
TagsNo tags attached.


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Issue History

Date Modified Username Field Change
2019-07-12 21:07 bart_jansen New Issue