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Vulnerability Details : 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.
Publish Date : 2007-10-05 Last Update Date : 2010-08-21
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- CVSS Scores & Vulnerability Types

CVSS Score
7.5
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access User
Vulnerability Type(s) Execute Code
CWE ID 189

- Vendor Statements

Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2007-4990 The Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw.
Source: Redhat

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat low 2007-09-06 2007-10-02
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2007-4990 oval:org.opensuse.security:def:20074990 unix
RHSA-2008:0029: XFree86 security update (Important) oval:com.redhat.rhsa:def:20080029 unix
RHSA-2008:0030: xorg-x11 security update (Important) oval:com.redhat.rhsa:def:20080030 unix
The swap_char2b function in X.Org X Font Server (xfs) before 1.0.5 allows context-dependent attackers to execute arbitra... oval:org.mitre.oval:def:11599 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2007-4990

# Product Type Vendor Product Version Update Edition Language
1 Application X.org X Font Server 1.0.4 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
X.org X Font Server 1

- References For CVE-2007-4990

http://lists.freedesktop.org/archives/xorg-announce/2007-October/000416.html
MLIST [xorg-announce] 20071002 [ANNOUNCE] X.Org security advisory: multiple vulnerabilities in X font server
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=602
IDEFENSE 20071002 Multiple Vendor X Font Server Multiple Vulnerabilities
http://bugs.freedesktop.org/show_bug.cgi?id=12299 CONFIRM
http://bugs.gentoo.org/show_bug.cgi?id=194606 CONFIRM
http://docs.info.apple.com/article.html?artnum=307562 CONFIRM
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01323725
HP HPSBUX02303
http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html
APPLE APPLE-SA-2008-03-18
http://secunia.com/advisories/27052
SECUNIA 27052
http://secunia.com/advisories/27040
SECUNIA 27040
http://secunia.com/advisories/27240
SECUNIA 27240
http://secunia.com/advisories/27228
SECUNIA 27228
http://secunia.com/advisories/27176
SECUNIA 27176
http://secunia.com/advisories/27060
SECUNIA 27060
http://secunia.com/advisories/27560
SECUNIA 27560
http://secunia.com/advisories/28004
SECUNIA 28004
http://sunsolve.sun.com/search/document.do?assetkey=1-66-200642-1
SUNALERT 200642
http://sunsolve.sun.com/search/document.do?assetkey=1-26-103114-1
SUNALERT 103114
http://www.frsirt.com/english/advisories/2008/0149
VUPEN ADV-2008-0149
http://www.frsirt.com/english/advisories/2007/3467
VUPEN ADV-2007-3467
http://www.frsirt.com/english/advisories/2007/3338
VUPEN ADV-2007-3338
http://www.frsirt.com/english/advisories/2007/3337
VUPEN ADV-2007-3337
http://secunia.com/advisories/28514
SECUNIA 28514
http://secunia.com/advisories/28536
SECUNIA 28536
http://secunia.com/advisories/28542
SECUNIA 28542
http://secunia.com/advisories/29420
SECUNIA 29420
http://security.gentoo.org/glsa/glsa-200710-11.xml
GENTOO GLSA-200710-11
http://www.frsirt.com/english/advisories/2008/0924/references
VUPEN ADV-2008-0924
http://www.redhat.com/support/errata/RHSA-2008-0030.html
REDHAT RHSA-2008:0030
http://www.redhat.com/support/errata/RHSA-2008-0029.html
REDHAT RHSA-2008:0029
http://www.mandriva.com/security/advisories?name=MDKSA-2007:210
MANDRIVA MDKSA-2007:210
http://www.novell.com/linux/security/advisories/2007_54_xorg.html
SUSE SUSE-SA:2007:054
http://www.securitytracker.com/id?1018763
SECTRACK 1018763
http://www.securityfocus.com/bid/25898
BID 25898 X.Org X Font Server Multiple Memory Corruption Vulnerabilities Release Date:2008-03-19
https://issues.rpath.com/browse/RPL-1756 CONFIRM
http://www.securityfocus.com/archive/1/archive/1/481432/100/0/threaded
BUGTRAQ 20071003 rPSA-2007-0205-1 xorg-x11 xorg-x11-fonts xorg-x11-tools xorg-x11-xfs
http://xforce.iss.net/xforce/xfdb/36920
XF xfs-queryxbitmaps-queryxextents-bo(36920)
https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00352.html
FEDORA FEDORA-2007-4263

- Metasploit Modules Related To CVE-2007-4990

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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