CVE-2008-0006: Buffer overflow in (1) X.Org Xserver before 1.4.1, and (2) the libfont and libXfont libraries on some platform

Q: How do I fix CVE-2008-0006?

solaris libfont: mitigate or apply the listed mitigation; solaris libxfont: mitigate or apply the listed mitigation; xserver: upgrade to newer than 1.4. Exact commands for each OS are on this page.

Q: Is CVE-2008-0006 being exploited?

CVE-2008-0006 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-2008-0006 affect?

CVE-2008-0006 affects solaris libfont, solaris libxfont, xserver. Severity is high (CVSS 7.5). Buffer overflow in (1) X.Org Xserver before 1.4.1, and (2) the libfont and libXfont libraries on some platforms including Sun Solaris, allows context-dependent attackers to execute arbitrary code via a PCF font with a large difference betwe

Q: How urgent is CVE-2008-0006?

Priority 49/100. High severity; EPSS top 8%: very likely to be exploited

This month

HIGH 7.5MITIGATEMITIGATEUPGRADE

CVE-2008-0006 is a high-severity flaw (CVSS 7.5) affecting solaris libfont, solaris libxfont, xserver. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in (1) X.Org Xserver before 1.4.1, and (2) the libfont and libXfont libraries on some platforms including Sun Solaris, allows context-dependent attackers to execute arbitrary code via a PCF font with a large difference between the last col and first col values in the PCF_BDF_ENCODINGS table.

Why this priority

High severity
EPSS top 8%: very likely to be exploited

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	5.1% (top 8%)
CISA exploited list	No
Weakness	CWE-119
Published	2008-01-18
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: sun · x.org

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

Am I affected?

Timeline

2008-01-18 23:00 UTCPublished CVE record published
2026-06-16 22:48 UTCUpdated Record last modified

sun solaris libfont MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy solaris-libfont || rpm -q solaris-libfont || solaris-libfont --version

No fixed or unaffected release known

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

sun solaris libxfont MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy solaris-libxfont || rpm -q solaris-libxfont || solaris-libxfont --version

No fixed or unaffected release known

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

x.org xserver UPGRADE

Affected: <= 1.4

Fixed in: newer than 1.4

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.4 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade xserver

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-2008-0006?

solaris libfont: mitigate or apply the listed mitigation; solaris libxfont: mitigate or apply the listed mitigation; xserver: upgrade to newer than 1.4. Exact commands for each OS are on this page.

Is CVE-2008-0006 being exploited?

CVE-2008-0006 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-2008-0006 affect?

CVE-2008-0006 affects solaris libfont, solaris libxfont, xserver. Severity is high (CVSS 7.5). Buffer overflow in (1) X.Org Xserver before 1.4.1, and (2) the libfont and libXfont libraries on some platforms including Sun Solaris, allows context-dependent attackers to execute arbitrary code via a PCF font with a large difference betwe

How urgent is CVE-2008-0006?

Priority 49/100. High severity; EPSS top 8%: very likely to be exploited

References

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