Integer Underflow Affecting shim-ia32 package, versions <0:15.6-1.el8
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Test your applications- Snyk ID SNYK-CENTOS8-SHIMIA32-2931279
- published 9 Jun 2022
- disclosed 7 Jun 2022
Introduced: 7 Jun 2022
CVE-2022-28733 Open this link in a new tabHow to fix?
Upgrade Centos:8 shim-ia32 to version 0:15.6-1.el8 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.
Integer underflow in grub_net_recv_ip4_packets; A malicious crafted IP packet can lead to an integer underflow in grub_net_recv_ip4_packets() function on rsm->total_len value. Under certain circumstances the total_len value may end up wrapping around to a small integer number which will be used in memory allocation. If the attack succeeds in such way, subsequent operations can write past the end of the buffer.