CVE-2012-4551: Use-after-free vulnerability in libunity-webapps before 2.4.1 allows remote attackers to cause a denial of ser

Q: How do I fix CVE-2012-4551?

libunity-webapps: upgrade to newer than 2.4.0. Exact commands for each OS are on this page.

Q: Is CVE-2012-4551 being exploited?

CVE-2012-4551 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-2012-4551 affect?

CVE-2012-4551 affects libunity-webapps. Severity is high (CVSS 7.5). Use-after-free vulnerability in libunity-webapps before 2.4.1 allows remote attackers to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via a crafted web site, related to "certain hash tables."

This month

HIGH 7.5UPGRADE

CVE-2012-4551 is a high-severity flaw (CVSS 7.5) affecting libunity-webapps. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Use-after-free vulnerability in libunity-webapps before 2.4.1 allows remote attackers to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via a crafted web site, related to "certain hash tables."

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Weakness	CWE-399
Published	2012-11-30
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: ps project management team

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

Am I affected?

Timeline

2012-11-30 22:55 UTCPublished CVE record published
2026-06-16 23:45 UTCUpdated Record last modified

ps project management team libunity-webapps UPGRADE

Affected: <= 2.4.0 · 0.02 · 0.2.1 · 0.3 · 0.3.1 · 2.0 · 2.0.1 · 2.1

Fixed in: newer than 2.4.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy libunity-webapps || rpm -q libunity-webapps || libunity-webapps --version

2. UPGRADE to newer than 2.4.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade libunity-webapps

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade libunity-webapps

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-2012-4551?

libunity-webapps: upgrade to newer than 2.4.0. Exact commands for each OS are on this page.

Is CVE-2012-4551 being exploited?

CVE-2012-4551 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-2012-4551 affect?

CVE-2012-4551 affects libunity-webapps. Severity is high (CVSS 7.5). Use-after-free vulnerability in libunity-webapps before 2.4.1 allows remote attackers to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via a crafted web site, related to "certain hash tables."

How urgent is CVE-2012-4551?

Priority 46/100. High severity

References

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