CVE-2007-4568: x.org x_font_server

Vulnerability summary

CVE-2007-4568 is a medium (CVSS 6.8) vulnerability in x.org x_font_server. EPSS estimates a 3.98% chance of exploitation in the next 30 days, higher than 90.3% of scored vulnerabilities.

Timeline

1. 05-10-2007
   PublishedVulnerability first disclosed.
2. 07-08-2024
   Last modifiedVulnerability information updated.

Description

Integer overflow in the build_range 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, which triggers a heap-based buffer overflow.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
• CWE-189Numeric ErrorsWeaknesses in this category are related to improper calculation or conversion of numbers.