CVE-2018-1992
The IBM Power 9 OP910, OP920, and FW910 boot firmware's bootloader is responsible for loading and validating the initial boot firmware imag…
Published 7 y ago · modified 4 mo ago · JSON
Summary
The IBM Power 9 OP910, OP920, and FW910 boot firmware's bootloader is responsible for loading and validating the initial boot firmware image that drives the rest of the system's hardware initialization. The bootloader firmware contains a buffer overflow vulnerability such that, if an attacker were able to replace the initial boot firmware image with a very carefully crafted and sufficiently large, malicious replacement, it could cause the bootloader, during the load of that image, to overwrite its own instruction memory and circumvent secure boot protections, install trojans, etc. IBM X-Force ID: 154345.
Exploit prediction (EPSS)
0.35% probability of exploitation in the next 30 days, higher than 29% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| CNA | 3.0 | 6.4 | CVSS:3.0/PR:H/AV:L/S:U/I:H/UI:N/AC:H/A:H/C:H/RC:C/E:U/RL:O |
| CNA | 3.0 | 6.4 | CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.0 | 6.4 | CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 6.9 | AV:L/AC:M/Au:N/C:C/I:C/A:C |
Affected products
- IBM Power 9 Systems
Classification
- Weakness
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- ibm.com /support/docview.wss?uid=ibm10868992 · x_refsource_CONFIRM, x_transferred
- exchange.xforce.ibmcloud.com /vulnerabilities/154345 · vdb-entry, x_refsource_XF, x_transferred
Sources
- CVE List: CVE-2018-1992
- NVD: CVE-2018-1992
vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.