CVE-2018-1992: Buffer Overflow
First published: Thu Mar 21 2019(Updated: )
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.
Credit: psirt@us.ibm.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| IBM Power system s922 (9009-22a) firmware | <fw910.10 | |
| IBM Power system s922 (9009-22a) | ||
| IBM Power system h922 (9223-22h) firmware | <fw910.10 | |
| IBM Power system h922 (9223-22h) | ||
| IBM Power System S914 (9009-41a) firmware | <fw910.10 | |
| IBM Power System S914 | ||
| IBM Power System S924 (9009-42a) firmware | <fw910.10 | |
| IBM Power System S924 (9009-42A) | ||
| IBM Power system h924 (9223-42h) firmware | <fw910.10 | |
| IBM Power System H924 (9223-42h) | ||
| IBM Power System L922 (9008-22L) Firmware | <fw910.10 | |
| IBM Power System L922 (9008-22L) | ||
| IBM Power System AC922 (8335-GTG) Firmware | <op910.30 | |
| IBM Power System AC922 (8335-GTG) | ||
| IBM Power System AC922 (8335-GTH) Firmware | <op920.10 | |
| IBM Power System AC922 (8335-GTH) | ||
| IBM Power System AC922 (8335-GTX) Firmware | <op920.10 | |
| IBM Power System AC922 (8335-GTX) | ||
| IBM Power system lc921 (9006-12p) firmware | <op920.10 | |
| IBM Power System LC921 (9006-12P) | ||
| IBM Power System LC922 (9006-22P) Firmware | <op920.10 | |
| IBM Power System LC922 (9006-22P) |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2018-1992?
The severity of CVE-2018-1992 is classified as critical due to its buffer overflow vulnerability in bootloader firmware.
How do I fix CVE-2018-1992?
To fix CVE-2018-1992, update the affected IBM Power systems firmware to the latest version that addresses the vulnerability.
Which IBM Power systems are affected by CVE-2018-1992?
CVE-2018-1992 affects several IBM Power systems including the S922, H922, S914, S924, H924, L922, and specific AC922 models.
What types of attacks could exploit CVE-2018-1992?
Exploitation of CVE-2018-1992 could allow an attacker to execute arbitrary code and compromise the integrity of the system.
Is there a workaround for CVE-2018-1992 before applying the fix?
Currently, there are no recommended workarounds for CVE-2018-1992, and applying the firmware update is the best course of action.
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- vendor/ibm
- canonical/ibm power system s922 (9009-22a) firmware
- canonical/ibm power system s922 (9009-22a)
- canonical/ibm power system h922 (9223-22h) firmware
- canonical/ibm power system h922 (9223-22h)
- canonical/ibm power system s914 (9009-41a) firmware
- canonical/ibm power system s914
- canonical/ibm power system s924 (9009-42a) firmware
- canonical/ibm power system s924 (9009-42a)
- canonical/ibm power system h924 (9223-42h) firmware
- canonical/ibm power system h924 (9223-42h)
- canonical/ibm power system l922 (9008-22l) firmware
- canonical/ibm power system l922 (9008-22l)
- canonical/ibm power system ac922 (8335-gtg) firmware
- canonical/ibm power system ac922 (8335-gtg)
- canonical/ibm power system ac922 (8335-gth) firmware
- canonical/ibm power system ac922 (8335-gth)
- canonical/ibm power system ac922 (8335-gtx) firmware
- canonical/ibm power system ac922 (8335-gtx)
- canonical/ibm power system lc921 (9006-12p) firmware
- canonical/ibm power system lc921 (9006-12p)
- canonical/ibm power system lc922 (9006-22p) firmware
- canonical/ibm power system lc922 (9006-22p)