Strix
26.1K

CVE-2007-4990

UnknownEPSS 10.74%

Last modified

CVE-2007-4990 is a vulnerability of currently unknown severity. The swap_char2b function in X.Org X Font Server (xfs) before 1.0.5 allows context-dependent attackers to execute arbitrary code via (1) QueryXBitmaps and (2) QueryXExtents protocol requests with crafted size values that specify an arbitrary number of bytes to be swapped on the heap, which triggers heap corruption.. EPSS estimates a 10.74% chance of exploitation in the next 30 days.

Description

The swap_char2b function in X.Org X Font Server (xfs) before 1.0.5 allows context-dependent attackers to execute arbitrary code via (1) QueryXBitmaps and (2) QueryXExtents protocol requests with crafted size values that specify an arbitrary number of bytes to be swapped on the heap, which triggers heap corruption.

Metrics

EPSS Probability
10.74%

95.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
X.OrgX Font Server<= 1.0.4

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2007-4990?
The swap_char2b function in X.Org X Font Server (xfs) before 1.0.5 allows context-dependent attackers to execute arbitrary code via (1) QueryXBitmaps and (2) QueryXExtents protocol requests with crafted size values that specify an arbitrary number of bytes to be swapped on the heap, which triggers heap corruption.
How severe is CVE-2007-4990?
Severity scoring for CVE-2007-4990 is pending analysis. The EPSS model estimates a 10.74% probability of exploitation in the next 30 days.
How do I fix CVE-2007-4990?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2007-4990?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST