openSUSE Security Update: Security update for perl-Net-Netmask
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Announcement ID:    openSUSE-SU-2023:0215-1
Rating:             moderate
References:         #1184425 
Cross-References:   CVE-2021-29424
CVSS scores:
                    CVE-2021-29424 (NVD) : 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
                    CVE-2021-29424 (SUSE): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Products:
                    openSUSE Backports SLE-15-SP4
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   An update that fixes one vulnerability is now available.

Description:

   This update for perl-Net-Netmask fixes the following issues:

   * CVE-2021-29424: Leading zeros are no longer allowed for IPv4 octets.
     This (in some situations) allows attackers to bypass access control that
     is based on IP addresses.(boo#1184425)


Patch Instructions:

   To install this openSUSE Security Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - openSUSE Backports SLE-15-SP4:

      zypper in -t patch openSUSE-2023-215=1



Package List:

   - openSUSE Backports SLE-15-SP4 (noarch):

      perl-Net-Netmask-1.9022-bp154.2.3.1


References:

   https://www.suse.com/security/cve/CVE-2021-29424.html
   https://bugzilla.suse.com/1184425