Lack of data validation In shim
Description
A buffer overflow was found in Shim in the 32-bit system. The overflow happens due to an addition operation involving a user-controlled value parsed from the PE binary being used by Shim. This value is further used for memory allocation operations, leading to a heap-based buffer overflow. This flaw causes memory corruption and can lead to a crash or data integrity issues during the boot phase.
Mitigation
Update Impact
Minimal update. May introduce new vulnerabilities or breaking changes.
Ecosystem | Package | Affected version | Patched versions |
|---|---|---|---|
 debian 11 | 15.8-1~deb11u1 | ||
debian 12 | 15.8-1~deb12u1 | ||
debian 13 | 15.8-1 | ||
debian 14 | 15.8-1 | ||
 rpm rhel9.0 | 0:15.8-2.el9 | ||
rpm rhel7 | 0:15.8-3.el7 | ||
rpm rhel8 | 0:15.8-4.el8_9 | ||
rpm rhel8.6 | 0:15.8-2.el8_6 | ||
rpm rhel8.8 | 0:15.8-2.el8 | ||
rpm rhel9 | 0:15.8-4.el9_3 |
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Aliases
1. 2. 3. 4. 5.