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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.

oval:org.mitre.oval:def:11599

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.

Family:
unix
Status:
ACCEPTED
Platform(s):
  • Red Hat Enterprise Linux 3
  • CentOS Linux 3
  • Red Hat Enterprise Linux 4
  • Oracle Linux 4
  • CentOS Linux 4
Class:
vulnerability
Reference(s):
  • CVE-2007-4990
Product(s):