Integer Overflow or Wraparound Affecting shim-ia32 package, versions <0:15-14.el8_2
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Test your applications- Snyk ID SNYK-CENTOS8-SHIMIA32-2044647
- published 26 Jul 2021
- disclosed 29 Jul 2020
How to fix?
Upgrade Centos:8 shim-ia32 to version 0:15-14.el8_2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream shim-ia32 package and not the shim-ia32 package as distributed by Centos.
See How to fix? for Centos:8 relevant fixed versions and status.
In grub2 versions before 2.06 the grub memory allocator doesn't check for possible arithmetic overflows on the requested allocation size. This leads the function to return invalid memory allocations which can be further used to cause possible integrity, confidentiality and availability impacts during the boot process.
References
- https://security.netapp.com/advisory/ntap-20200731-0008/
- https://access.redhat.com/security/cve/CVE-2020-14308
- https://security.gentoo.org/glsa/202104-05
- https://bugzilla.redhat.com/show_bug.cgi?id=1852009
- http://www.openwall.com/lists/oss-security/2020/07/29/3
- http://www.openwall.com/lists/oss-security/2021/09/17/2
- http://www.openwall.com/lists/oss-security/2021/09/17/4
- http://www.openwall.com/lists/oss-security/2021/09/21/1
- https://access.redhat.com/errata/RHSA-2020:3216
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00016.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00017.html
- https://usn.ubuntu.com/4432-1/