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CVE-2005-0238: The International Domain Name (IDN) support in Epiphany allows remote attackers to spoof domain names using pu

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MEDIUM 5.0MITIGATEDOWNGRADEUPGRADE

CVE-2005-0238 is a medium-severity flaw (CVSS 5.0) affecting epiphany, camino, mozilla. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The International Domain Name (IDN) support in Epiphany allows remote attackers to spoof domain names using punycode encoded domain names that are decoded in URLs and SSL certificates in a way that uses homograph characters from other character sets, which facilitates phishing attacks.

Why this priority

  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score5.0 (Medium)
EPSS exploit chance1.6% (top 25%)
CISA exploited listNo
Published2005-05-02
Last modified2026-06-16
Publisher (CNA): Red Hat, Inc. · Vendor: gnome · mozilla · omnigroup · opera

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

Am I affected?

Timeline

gnome epiphany 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 epiphany || rpm -q epiphany || epiphany --version
No fixed or unaffected release known
Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.
mozilla camino DOWNGRADE
Affected: 0.8.5
Fixed in: no fixed release known
Safe to downgrade to: a release before 0.8.5
1. Check installed version
apt-cache policy camino || rpm -q camino || camino --version
2. No fixed release: DOWNGRADE to a release before 0.8.5 (Debian / Ubuntu)
apt-cache madison camino sudo apt install camino=<VERSION_BEFORE_0.8.5> sudo apt-mark hold camino
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list camino sudo dnf downgrade camino-<VERSION_BEFORE_0.8.5> sudo dnf versionlock add camino
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.
mozilla mozilla UPGRADE
Affected: <= 1.6
Fixed in: newer than 1.6
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy mozilla || rpm -q mozilla || mozilla --version
2. UPGRADE to newer than 1.6 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade mozilla
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade mozilla
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
omnigroup omniweb DOWNGRADE
Affected: 5
Fixed in: no fixed release known
Safe to downgrade to: a release before 5
1. Check installed version
apt-cache policy omniweb || rpm -q omniweb || omniweb --version
2. No fixed release: DOWNGRADE to a release before 5 (Debian / Ubuntu)
apt-cache madison omniweb sudo apt install omniweb=<VERSION_BEFORE_5> sudo apt-mark hold omniweb
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list omniweb sudo dnf downgrade omniweb-<VERSION_BEFORE_5> sudo dnf versionlock add omniweb
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.
opera opera browser UPGRADE
Affected: <= 7.54
Fixed in: newer than 7.54
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy opera-browser || rpm -q opera-browser || opera-browser --version
2. UPGRADE to newer than 7.54 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade opera-browser
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade opera-browser
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-2005-0238?

epiphany: mitigate or apply the listed mitigation; camino: downgrade or apply the listed mitigation; mozilla: upgrade to newer than 1.6. Exact commands for each OS are on this page.

Is CVE-2005-0238 being exploited?

CVE-2005-0238 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-2005-0238 affect?

CVE-2005-0238 affects epiphany, camino, mozilla. Severity is medium (CVSS 5.0). The International Domain Name (IDN) support in Epiphany allows remote attackers to spoof domain names using punycode encoded domain names that are decoded in URLs and SSL certificates in a way that uses homograph characters from other chara

How urgent is CVE-2005-0238?

Priority 41/100. Public exploit reference

Related CVEs

References

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