CVE-2002-2016

unknown

Published — · Modified —

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

1.0

Description

User-mode Linux (UML) 2.4.17-8 does not restrict access to kernel address space, which allows local users to execute arbitrary code.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

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Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-21248 local linux verified text · 1 KB

Andrew Griffiths · 2000-08-25

User-Mode Linux (Linux Kernel 2.4.17-8) - Memory Access Privilege Escalation

text exploit Source: Exploit-DB

source: https://www.securityfocus.com/bid/3973/info

User-Mode Linux (UML) is a patch which allows the Linux Kernel to run as a user space process. It is currently available for the Linux operating system. It may be used as an efficient tool for kernel development, as well as for virtual networking, honeypots, and experimentation.

UML does not correctly protect kernel address space from user programs within the UML environment. It may be possible to execute arbitrary code within the kernel and gain root access. Additionally, it may be possible to use this vulnerability to escape the UML environment, leading to local access on the hosting system.

This is a known problem with the current UML implementation. Memory protection may be partially implemented at this time.

https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/21248.tgz

OS impact

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`2.4.17-9`
sid	Fixed	`2.4.17-9`
forky	Fixed	`2.4.17-9`
bullseye	Fixed	`2.4.17-9`
bookworm	Fixed	`2.4.17-9`

References

https://security-tracker.debian.org/tracker/CVE-2002-2016

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.