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CVE ID:CVE-2007-4990
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.
Test IDs:  
Cross References: Common Vulnerability Exposure (CVE) ID: CVE-2007-4990
BugTraq ID: 25898
Bugtraq: 20071003 rPSA-2007-0205-1 xorg-x11 xorg-x11-fonts xorg-x11-tools xorg-x11-xfs (Google Search)
HPdes Security Advisory: HPSBUX02303
HPdes Security Advisory: SSRT071468
RedHat Security Advisories: RHSA-2008:0029
RedHat Security Advisories: RHSA-2008:0030
SuSE Security Announcement: SUSE-SA:2007:054 (Google Search)
XForce ISS Database: xfs-queryxbitmaps-queryxextents-bo(36920)

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