CVE-2007-1351: Integer overflow in the bdfReadCharacters function in bdfread.c in (1) X.Org libXfont before 20070403 and (2)
58
This month
HIGH 8.5WATCHLISTMITIGATEDOWNGRADEDOWNGRADE
CVE-2007-1351 is a high-severity flaw (CVSS 8.5) affecting ubuntu linux, libxfont, x11r6. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Integer overflow in the bdfReadCharacters function in bdfread.c in (1) X.Org libXfont before 20070403 and (2) freetype 2.3.2 and earlier allows remote authenticated users to execute arbitrary code via crafted BDF fonts, which result in a heap overflow.
Why this priority
High severity
EPSS top 7%: very likely to be exploited
On your watchlist
No fix is published yet: follow the downgrade or mitigation steps.
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.
rpath rpath linux MITIGATE
Affected: 1
Fixed in: no fixed release known
Safe to downgrade to: a release before 1
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 MITIGATE
Affected: 2.1 · 3.0 · 4.0 · 5.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 2.1
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.
Verify at the official sourceNVD · 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-2007-1351?
ubuntu linux: mitigate or apply the listed mitigation; libxfont: downgrade or apply the listed mitigation; x11r6: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.
Is CVE-2007-1351 being exploited?
CVE-2007-1351 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-2007-1351 affect?
CVE-2007-1351 affects ubuntu linux, libxfont, x11r6. Severity is high (CVSS 8.5). Integer overflow in the bdfReadCharacters function in bdfread.c in (1) X.Org libXfont before 20070403 and (2) freetype 2.3.2 and earlier allows remote authenticated users to execute arbitrary code via crafted BDF fonts, which result in a he
How urgent is CVE-2007-1351?
Priority 58/100. High severity; EPSS top 7%: very likely to be exploited; On your watchlist
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