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CVE-2001-0170

LowPublished

glibc 2.1.9x and earlier does not properly clear the RESOLV_HOST_CONF, HOSTALIASES, or RES_OPTIONS environmental variables when executing setuid/setgid...

Published: May 7, 2001
Updated: Aug 8, 2024
Assigning CNA: mitre
Evidence observed: Jan 1, 1996

Primary CVSS

2.1/ 10Low

nvd · CVSS 2.0

AV:L/AC:L/Au:N/C:P/I:N/A:N

EPSS probability estimate

0.8%

Low · next 30 days

Percentile: 56.0%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

glibc 2.1.9x and earlier does not properly clear the RESOLV_HOST_CONF, HOSTALIASES, or RES_OPTIONS environmental variables when executing setuid/setgid programs, which could allow local users to read arbitrary files.

Sources

glibc-2.2 / openssh-2.3.0p1 / glibc 2.1.9x - File ReadExploit
krochos · linux · Jan 25, 2001
Resolv+ 'RESOLV_HOST_CONF' - Linux Library Command ExecutionExploit
Jared Mauch · linux · Jan 1, 1996

Responsible use

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