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Synthesis of the vulnerability 
An attacker can bypass restrictions via avahi-daemon-check-dns.sh of Debian avahi, in order to escalate his privileges.
 Vulnerable products: Debian, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Severity of this weakness: 2/4.
Creation date: 23/02/2021.
Références of this bulletin: 1180827, 982796, CVE-2021-26720, openSUSE-SU-2021:0370-1, SUSE-SU-2021:0551-1, SUSE-SU-2021:0563-1, SUSE-SU-2021:1845-1, VIGILANCE-VUL-34656.
Description of the vulnerability 
An attacker can bypass restrictions via avahi-daemon-check-dns.sh of Debian avahi, in order to escalate his privileges.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)
This weakness alert impacts software or systems such as Debian, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Our Vigil@nce team determined that the severity of this computer vulnerability note is medium.
The trust level is of type confirmed by the editor, with an origin of user shell.
An attacker with a expert ability can exploit this security bulletin.
Solutions for this threat 
openSUSE Leap 15.2: new avahi packages.
New packages are available:
openSUSE Leap 15.2: avahi 0.7-lp152.3.6.1
SUSE LE 12 SP5: new avahi packages.
New packages are available:
SUSE LE 12 SP5: avahi 0.6.32-32.12.2
SUSE LE 15 RTM: new avahi packages.
New packages are available:
SUSE LE 15 RTM: avahi 0.6.32-5.13.1
SUSE LE 15 SP2: new avahi packages.
New packages are available:
SUSE LE 15 SP2: avahi 0.7-3.6.1
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)
Computer vulnerabilities tracking service 
Vigil@nce provides a network vulnerability watch. The Vigil@nce security watch publishes vulnerability bulletins about threats impacting the information system.
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