CVE-2011-4363: ProcessTable.pm in the Proc::ProcessTable module 0.45 for Perl, when TTY information caching is enabled, allow

Routine

LOW 2.6MITIGATE

CVE-2011-4363 is a low-severity flaw (CVSS 2.6) affecting proc\. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

ProcessTable.pm in the Proc::ProcessTable module 0.45 for Perl, when TTY information caching is enabled, allows local users to overwrite arbitrary files via a symlink attack on /tmp/TTYDEVS.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	2.6 (Low)
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-59
Published	2012-10-07
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: frii

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2012-10-07 21:55 UTCPublished CVE record published
2026-06-16 23:34 UTCUpdated Record last modified

frii proc\ MITIGATE

Affected: \ processtable

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy proc || rpm -q proc || proc --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2011-4363?

proc\: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2011-4363 being exploited?

CVE-2011-4363 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2011-4363 affect?

CVE-2011-4363 affects proc\. Severity is low (CVSS 2.6). ProcessTable.pm in the Proc::ProcessTable module 0.45 for Perl, when TTY information caching is enabled, allows local users to overwrite arbitrary files via a symlink attack on /tmp/TTYDEVS.

How urgent is CVE-2011-4363?

Priority 15/100. No elevated risk signals yet.

Software pages

Perl vulnerabilities

Related CVEs

CVE-2013-7135 HIGH 7.2 MITIGATE The Proc::Daemon module 0.14 for Perl uses world-writable permissions for a file that stores a process ID, whi

References

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