CVE-2024-11263 — Privilege Context Switching Error in Zephyr

CWE-270 — Privilege Context Switching Error2 documents2 sources
Severity
8.4HIGHNVD
CNA9.3
EPSS
0.2%
top 63.47%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Zephyrproject-rtos ZephyrZephyrproject Zephyr
Timeline
PublishedNov 15

Description

When the Global Pointer (GP) relative addressing is enabled (CONFIG_RISCV_GP=y), the gp reg points at 0x800 bytes past the start of the .sdata section which is then used by the linker to relax accesses to global symbols.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 2.5 | Impact: 5.9

Affected Packages2 packages

▶CVEListV5zephyrproject-rtos/zephyr* — 3.7

Patches

Patch: github.com ↗

🔴Vulnerability Details

1
CVEList
arch: riscv: userspace: potential security risk when CONFIG_RISCV_GP=y↗2024-11-15
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CVE-2024-11263 — Privilege Context Switching Error | cvebase