LogoFail：The BMP, GIF, JPEG, PCX, and TGA parsing inventory contained in the BIOS UEFI system firmware is vulnerable. These libraries are used to parse personalized boot logo images loaded from EFI system partitions, which may cause local attackers with elevated privileges to trigger a denial of service or arbitrary code execution, involving multiple CVEs (CVE-2023-39538, CVE-2023-39539)
CVE-2023-52080：KAYTUS server UEFI firmware through 8.4 has a pool overflow vulnerability, caused by improper use of the gRT->GetVariable() function. Attackers with access to local NVRAM variables can exploit this by modifying these variables on SPI Flash, resulting in memory data being tampered with. When critical data in memory data is tampered with,a crash may occur.
| CVE | V3.1 Vector(Base) | Base Score | V3.1 Vector(Temporal Score) | Temporal Score |
| CVE-2023-39538 | AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H | 7.5 | E:P/RL:O/RC:C | 6.7 |
| CVE-2023-39539 | AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H | 7.5 | E:P/RL:O/RC:C | 6.7 |
| CVE-2023-52080 | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | 5.5 | E:P/RL:O/RC:C | 5.0 |
| Products | FW UpdateVersion |
| KR2280X2 | KR2280V2_BIOS_05.17.00 |
| KR4480X2 | KR4480V2_BIOS_05.17.00 |
| KR2460X2 | KR2460V2_BIOS_05.17.00 |
| KR1280X2 | KR1280V2_BIOS_05.12.01 |
| KR4276X2 | KR4276V2_BIOS_05.17.00 |
| KR4266X2 | KR4266V2_BIOS_05.17.00 |
| KR6880X2 | KR6880V2_BIOS_05.17.00 |
| KR6288X2 | KR6288V2_BIOS_06.00.00 |
| KR4268X2 | KR4268V2_BIOS_06.00.00 |
| KR2266X2 | KR2266V2_BIOS_05.17.00 |
Please visit the support center directly to obtain patches and related technical support.
2024-04-28 V1.0 INITIAL
For issues about implementing the recommendations of this Security Bulletin, contact normal KAYTUS Services Support channel. For other issues about the content of this Security Bulletin, send e-mail to sec@kaytus.com.
To report a potential security vulnerability for KAYTUS product: Reporting a Security Vulnerability
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