CVE-2011-1144: The installer in PEAR 1.9.2 and earlier allows local users to overwrite arbitrary files via a symlink attack o

Q: How do I fix CVE-2011-1144?

pear: upgrade to newer than 1.9.2. Exact commands for each OS are on this page.

Q: Is CVE-2011-1144 being exploited?

CVE-2011-1144 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2011-1144 affect?

CVE-2011-1144 affects pear. Severity is low (CVSS 3.3). The installer in PEAR 1.9.2 and earlier allows local users to overwrite arbitrary files via a symlink attack on the package.xml file, related to the (1) download_dir, (2) cache_dir, (3) tmp_dir, and (4) pear-build-download directories. NOT

Q: How urgent is CVE-2011-1144?

Priority 18/100. No elevated risk signals yet.

Routine

LOW 3.3UPGRADE

CVE-2011-1144 is a low-severity flaw (CVSS 3.3) affecting pear. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The installer in PEAR 1.9.2 and earlier allows local users to overwrite arbitrary files via a symlink attack on the package.xml file, related to the (1) download_dir, (2) cache_dir, (3) tmp_dir, and (4) pear-build-download directories. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-1072.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	3.3 (Low)
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-59
Published	2011-03-03
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: php

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

Am I affected?

Timeline

2011-03-03 01:00 UTCPublished CVE record published
2026-06-16 23:28 UTCUpdated Record last modified

php pear UPGRADE

Affected: <= 1.9.2 · 0.2.2 · 0.9 · 0.10 · 0.11 · 0.90 · 1.0 · 1.0.1

Fixed in: newer than 1.9.2

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.9.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pear

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pear

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2011-1144?

pear: upgrade to newer than 1.9.2. Exact commands for each OS are on this page.

Is CVE-2011-1144 being exploited?

CVE-2011-1144 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-2011-1144 affect?

CVE-2011-1144 affects pear. Severity is low (CVSS 3.3). The installer in PEAR 1.9.2 and earlier allows local users to overwrite arbitrary files via a symlink attack on the package.xml file, related to the (1) download_dir, (2) cache_dir, (3) tmp_dir, and (4) pear-build-download directories. NOT

How urgent is CVE-2011-1144?

Priority 18/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

Related CVEs

CVE-2011-1072 LOW 3.3 UPGRADE The installer in PEAR before 1.9.2 allows local users to overwrite arbitrary files via a symlink attack on the
CVE-2009-4025 HIGH 10.0 UPGRADE Argument injection vulnerability in the traceroute function in Traceroute.php in the Net_Traceroute package be
CVE-2009-4024 HIGH 10.0 UPGRADE Argument injection vulnerability in the ping function in Ping.php in the Net_Ping package before 2.4.5 for PEA
CVE-2009-4023 HIGH 7.5 DOWNGRADE Argument injection vulnerability in the sendmail implementation of the Mail::Send method (Mail/sendmail.php) i
CVE-2007-2519 MEDIUM 6.8 DOWNGRADE Directory traversal vulnerability in the installer in PEAR 1.0 through 1.5.3 allows user-assisted remote attac

References

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