Public bug reported:
gnutls library can be configured using /etc/gnutls/config for example to
allow small keys and TLS versions below v1.2
however, if application is confined and has an apparmor profile and uses
gnutls it will ignore such file, if it is not allowed to read it.
For example:
[ 382.586297] audit: type=1400 audit(1628068663.214:162):
apparmor="DENIED" operation="open" profile="msmtp"
name="/etc/gnutls/config" pid=18621 comm="sendmail" requested_mask="r"
denied_mask="r" fsuid=0 ouid=0
[25379.358122] audit: type=1400 audit(1628093660.328:163): apparmor="DENIED"
operation="open" profile="/usr/bin/evince" name="/etc/gnutls/config" pid=53262
comm="evince" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[25460.754092] audit: type=1400 audit(1628093741.726:164):
apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd"
name="/etc/gnutls/config" pid=53347 comm="dbus" requested_mask="r"
denied_mask="r" fsuid=7 ouid=0
How can we allow to read /etc/gnutls/config for all apps that use
gnutls?
** Affects: apparmor (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1938938
Title:
apparmor denials for gnutls configuration
Status in apparmor package in Ubuntu:
New
Bug description:
gnutls library can be configured using /etc/gnutls/config for example
to allow small keys and TLS versions below v1.2
however, if application is confined and has an apparmor profile and
uses gnutls it will ignore such file, if it is not allowed to read it.
For example:
[ 382.586297] audit: type=1400 audit(1628068663.214:162):
apparmor="DENIED" operation="open" profile="msmtp"
name="/etc/gnutls/config" pid=18621 comm="sendmail" requested_mask="r"
denied_mask="r" fsuid=0 ouid=0
[25379.358122] audit: type=1400 audit(1628093660.328:163): apparmor="DENIED"
operation="open" profile="/usr/bin/evince" name="/etc/gnutls/config" pid=53262
comm="evince" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
[25460.754092] audit: type=1400 audit(1628093741.726:164):
apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd"
name="/etc/gnutls/config" pid=53347 comm="dbus" requested_mask="r"
denied_mask="r" fsuid=7 ouid=0
How can we allow to read /etc/gnutls/config for all apps that use
gnutls?
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https://bugs.launchpad.net/ubuntu/+source/apparmor/+bug/1938938/+subscriptions
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