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-SHIMIA32-2044587
- 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's an issue with grub2 in all versions before 2.06 when handling squashfs filesystems containing a symbolic link with name length of UINT32 bytes in size. The name size leads to an arithmetic overflow leading to a zero-size allocation further causing a heap-based buffer overflow with attacker controlled data.
References
- https://security.netapp.com/advisory/ntap-20200731-0008/
- https://access.redhat.com/security/cve/CVE-2020-14309
- https://security.gentoo.org/glsa/202104-05
- https://bugzilla.redhat.com/show_bug.cgi?id=1852022
- 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/