CVE-2021-26409

CWE-120 — Classic Buffer Overflow3 documents3 sources
Severity
7.8HIGH
EPSS
0.1%
top 82.28%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
AMD Milanpi FirmwareAMD 3RD GEN Epyc
Timeline
PublishedJan 11

Description

Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table (RMP) memory, potentially resulting in a loss of SNP (Secure Nested Paging) memory integrity.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9

Affected Packages2 packages

▶NVDamd/milanpi_firmware< 1.0.0.3
▶CVEListV5amd/3rd_gen_epycvarious

🔴Vulnerability Details

2
GHSA
GHSA-53r6-9q9v-359p: Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table (RMP) memory, potentially resulting in a loss of SNP (Secure↗2023-01-11
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CVEList
CVE-2021-26409: Insufficient bounds checking in SEV-ES may allow an attacker to corrupt Reverse Map table (RMP) memory, potentially resulting in a loss of SNP (Secure↗2023-01-10
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