CVE-2007-0455: Buffer overflow in the gdImageStringFTEx function in gdft.c in GD Graphics Library 2.0.33 and earlier allows r

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HIGH 7.5WATCHLISTUPGRADEUPGRADEMITIGATE

CVE-2007-0455 is a high-severity flaw (CVSS 7.5) affecting gd graphics library, php, ubuntu linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in the gdImageStringFTEx function in gdft.c in GD Graphics Library 2.0.33 and earlier allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted string with a JIS encoded font.

Why this priority

High severity
EPSS top 4%: very likely to be exploited
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	12.3% (top 4%)
CISA exploited list	No
Weakness	CWE-120
Published	2007-01-30
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: canonical · fedoraproject · gd graphics library project · php · redhat

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

Am I affected?

Timeline

2007-01-30 17:28 UTCPublished CVE record published
2026-06-16 22:35 UTCUpdated Record last modified

gd graphics library project gd graphics library UPGRADE

Affected: <= 2.0.33

Fixed in: newer than 2.0.33

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy gd-graphics-library || rpm -q gd-graphics-library || gd-graphics-library --version

2. UPGRADE to newer than 2.0.33 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade gd-graphics-library

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade gd-graphics-library

Note

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

php php UPGRADE

Affected: >= 4.4.0 and < 4.4.7

Fixed in: 4.4.7

Safe to downgrade to: a release before 4.4.0

1. Check installed version

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

2. UPGRADE to 4.4.7 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade php

Note

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

3. If no update is available yet, DOWNGRADE to a release before 4.4.0 (Debian / Ubuntu)

apt-cache madison php sudo apt install php=<VERSION_BEFORE_4.4.0> sudo apt-mark hold php

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list php sudo dnf downgrade php-<VERSION_BEFORE_4.4.0> sudo dnf versionlock add php

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

canonical ubuntu linux MITIGATE

Affected: 6.06 · 6.10 · 7.04

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.06

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

fedoraproject fedora MITIGATE

Affected: 13 · 14

Fixed in: no fixed release known

Safe to downgrade to: a release before 13

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

redhat enterprise linux desktop MITIGATE

Affected: 3.0 · 4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

redhat enterprise linux server MITIGATE

Affected: 3.0 · 4.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2007-0455?

gd graphics library: upgrade to newer than 2.0.33; php: upgrade to 4.4.7; ubuntu linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2007-0455 being exploited?

CVE-2007-0455 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-2007-0455 affect?

CVE-2007-0455 affects gd graphics library, php, ubuntu linux. Severity is high (CVSS 7.5). Buffer overflow in the gdImageStringFTEx function in gdft.c in GD Graphics Library 2.0.33 and earlier allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a crafted string with a J

How urgent is CVE-2007-0455?

Priority 55/100. High severity; EPSS top 4%: very likely to be exploited; On your watchlist

Software pages

PHP vulnerabilities · Ubuntu vulnerabilities

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References

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