Integer Overflow or Wraparound Affecting shim-ia32 package, versions <0:15-14.el8_2
Threat Intelligence
EPSS
0.05% (19th
percentile)
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Test your applications- Snyk ID SNYK-CENTOS8-SHIMIA32-2043020
- 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.
There is an issue with grub2 before version 2.06 while handling symlink on ext filesystems. A filesystem containing a symbolic link with an inode size of UINT32_MAX causes an arithmetic overflow leading to a zero-sized memory allocation with subsequent heap-based buffer overflow.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14311
- https://access.redhat.com/security/cve/CVE-2020-14311
- https://security.gentoo.org/glsa/202104-05
- 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/
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