CVE-2021-26339

3 documents3 sources
Severity
5.5MEDIUM
EPSS
0.1%
top 74.48%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
57
AMD Epyc 72f3 FirmwareAMD Epyc 7313 FirmwareAMD Epyc 7313p Firmware+54 more
Timeline
PublishedMay 11
Latest updateMay 12

Description

A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code includes a specific x86 instruction sequence that would not be generated by compilers.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages57 packages

▶NVDamd/epyc_72f3_firmware< milanpi-sp3_1.0.0.7
▶NVDamd/epyc_7313_firmware< milanpi-sp3_1.0.0.7
▶NVDamd/epyc_7343_firmware< milanpi-sp3_1.0.0.7
▶NVDamd/epyc_73f3_firmware< milanpi-sp3_1.0.0.7
▶NVDamd/epyc_7413_firmware< milanpi-sp3_1.0.0.7

🔴Vulnerability Details

2
GHSA
GHSA-jp8x-pjv8-649v: A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potent↗2022-05-12
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CVEList
CVE-2021-26339: A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potent↗2022-05-11
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CVE-2021-26339 (MEDIUM CVSS 5.5) | A bug in AMD CPU’s core logic may a | cvebase.io