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CVE-2021-21781

PoC —
CVSS 3.1
3.3 low
EPSS
<1%p41
Published
()
Modified
Description

An information disclosure vulnerability exists in the ARM SIGPAGE functionality of Linux Kernel v5.4.66 and v5.4.54. The latest version (5.11-rc4) seems to still be vulnerable. A userland application can read the contents of the sigpage, which can leak kernel memory contents. An attacker can read a process’s memory at a specific offset to trigger this vulnerability. This was fixed in kernel releases: 4.14.222 4.19.177 5.4.99 5.10.17 5.11

Vendors
linuxoracle
Products
linux kernel, communications cloud native core binding support function, communications cloud native core network exposure function, communications cloud native core policy
Weakness
CWE-908
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD CVE.org GitHub PoCs EPSS (0.5%)

In the news

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