openSUSE Security Update: Security update for rpm
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Announcement ID:    openSUSE-SU-2021:2682-1
Rating:             important
References:         #1179416 #1181805 #1183543 #1183545 ECO-3622 
                    SLE-17817 
Cross-References:   CVE-2021-20266 CVE-2021-20271 CVE-2021-3421
                   
CVSS scores:
                    CVE-2021-20266 (NVD) : 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
                    CVE-2021-20266 (SUSE): 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L
                    CVE-2021-20271 (NVD) : 7 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
                    CVE-2021-20271 (SUSE): 3.3 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:L
                    CVE-2021-3421 (NVD) : 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
                    CVE-2021-3421 (SUSE): 5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected Products:
                    openSUSE Leap 15.3
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   An update that solves three vulnerabilities, contains two
   features and has one errata is now available.

Description:

   This update for rpm fixes the following issues:

   - Changed default package verification level to 'none' to be compatible to
     rpm-4.14.1
   - Made illegal obsoletes a warning
   - Fixed a potential access of freed mem in ndb's glue code (bsc#1179416)
   - Added support for enforcing signature policy and payload verification
     step to transactions (jsc#SLE-17817)
   - Added :humansi and :hmaniec query formatters for human readable output
   - Added query selectors for whatobsoletes and whatconflicts
   - Added support for sorting caret higher than base version
   - rpm does no longer require the signature header to be in a contiguous
     region when signing (bsc#1181805)

   Security fixes:

   - CVE-2021-3421: A flaw was found in the RPM package in the read
     functionality. This flaw allows an attacker who can convince a victim to
     install a seemingly verifiable package or compromise an RPM repository,
     to cause RPM database corruption. The highest threat from this
     vulnerability is to data integrity (bsc#1183543)

   - CVE-2021-20271: A flaw was found in RPM's signature check functionality
     when reading a package file. This flaw allows an attacker who can
     convince a victim to install a seemingly verifiable package, whose
     signature header was modified, to cause RPM database corruption and
     execute code. The highest threat from this vulnerability is to data
     integrity, confidentiality, and system availability (bsc#1183545)

   - CVE-2021-20266: A flaw was found in RPM's hdrblobInit() in lib/header.c.
     This flaw allows an attacker who can modify the rpmdb to cause an
     out-of-bounds read. The highest threat from this vulnerability is to
     system availability.


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 Leap 15.3:

      zypper in -t patch openSUSE-SLE-15.3-2021-2682=1



Package List:

   - openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64):

      python-rpm-debugsource-4.14.3-37.2
      python2-rpm-4.14.3-37.2
      python2-rpm-debuginfo-4.14.3-37.2
      python3-rpm-4.14.3-37.2
      python3-rpm-debuginfo-4.14.3-37.2
      rpm-4.14.3-37.2
      rpm-build-4.14.3-37.2
      rpm-build-debuginfo-4.14.3-37.2
      rpm-debuginfo-4.14.3-37.2
      rpm-debugsource-4.14.3-37.2
      rpm-devel-4.14.3-37.2
      rpm-ndb-4.14.3-37.2
      rpm-ndb-debuginfo-4.14.3-37.2
      rpm-ndb-debugsource-4.14.3-37.2

   - openSUSE Leap 15.3 (x86_64):

      rpm-32bit-4.14.3-37.2
      rpm-32bit-debuginfo-4.14.3-37.2
      rpm-ndb-32bit-4.14.3-37.2
      rpm-ndb-32bit-debuginfo-4.14.3-37.2


References:

   https://www.suse.com/security/cve/CVE-2021-20266.html
   https://www.suse.com/security/cve/CVE-2021-20271.html
   https://www.suse.com/security/cve/CVE-2021-3421.html
   https://bugzilla.suse.com/1179416
   https://bugzilla.suse.com/1181805
   https://bugzilla.suse.com/1183543
   https://bugzilla.suse.com/1183545