Overview
- 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.
- Source
- secalert@redhat.com
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7.4
- Impact score
- 5.9
- Exploitability score
- 1.4
- Vector string
- CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
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"vulnerable": true,
"matchCriteriaId": "01639865-3664-4034-BCFB-F4E09AF37F28",
"versionEndExcluding": "15.8"
},
{
"criteria": "cpe:2.3:a:redhat:shim:15.8:rc1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "BF11AEF9-B742-46DC-94D2-6160B93767BD"
}
],
"operator": "OR"
}
]
},
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]