CVE-2002-1571

Severity: low (CVSS 2.1 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2002-12-31 · updated 2026-06-16

Description

The linux 2.4 kernel before 2.4.19 assumes that the fninit instruction clears all registers, which could lead to an information leak on processors that do not clear all relevant SSE registers.

Affected products

Linux kernel: 2.4.0, 2.4.0-test1, 2.4.0-test10, 2.4.0-test11, 2.4.0-test12, 2.4.0-test2 (+40)

References

http://linux.bkbits.net:8080/linux-2.4/diffs/arch/i386/kernel/i387.c%401.6
http://search.luky.org/linux-kernel.2002/msg24003.html
http://search.luky.org/linux-kernel.2002/msg24992.html
http://www.cs.helsinki.fi/linux/linux-kernel/2002-15/0628.html
http://www.cs.helsinki.fi/linux/linux-kernel/2002-15/0760.html
http://linux.bkbits.net:8080/linux-2.4/diffs/arch/i386/kernel/i387.c%401.6
http://search.luky.org/linux-kernel.2002/msg24003.html
http://search.luky.org/linux-kernel.2002/msg24992.html
http://www.cs.helsinki.fi/linux/linux-kernel/2002-15/0628.html
http://www.cs.helsinki.fi/linux/linux-kernel/2002-15/0760.html

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