There's a possible overflow in handleimage() when shim tries to load and execute crafted EFI executables; The handleimage() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/28xxx/CVE-2022-28737.json",
"cna_assigner": "canonical"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "15.6"
},
{
"introduced": "0"
},
{
"fixed": "15.6"
}
],
"cpe": "cpe:2.3:a:redhat:shim:*:*:*:*:*:*:*:*",
"source": [
"AFFECTED_FIELD",
"CPE_RANGE"
]
}