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.

Category

7.5
CVSS
Severity: High
CVSS 2.0 •
EPSS 1.68% Top 20%
Vendor Advisory novell.com Vendor Advisory sun.com Vendor Advisory redhat.com Vendor Advisory hp.com Vendor Advisory redhat.com Vendor Advisory apple.com Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory sun.com Vendor Advisory mandriva.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.novell.com/linux/security/advisories/2007_54_xorg.html vendor advisory
http://www.securitytracker.com/id?1018763 vdb entry
http://secunia.com/advisories/28542 third party advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-66-200642-1 vendor advisory
https://www.redhat.com/archives/fedora-package-announce/2007-December/msg00352.html vendor advisory
http://www.securityfocus.com/archive/1/481432/100/0/threaded mailing list
http://bugs.freedesktop.org/show_bug.cgi?id=12299
http://secunia.com/advisories/28514 third party advisory
http://secunia.com/advisories/27052 third party advisory
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=602 third party advisory
http://secunia.com/advisories/27060 third party advisory
http://www.vupen.com/english/advisories/2008/0924/references vdb entry
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01323725 vendor advisory
http://lists.freedesktop.org/archives/xorg-announce/2007-October/000416.html mailing list
http://www.redhat.com/support/errata/RHSA-2008-0029.html vendor advisory
http://secunia.com/advisories/28004 third party advisory
http://secunia.com/advisories/27240 third party advisory
https://issues.rpath.com/browse/RPL-1756
http://secunia.com/advisories/29420 third party advisory
http://secunia.com/advisories/27040 third party advisory
http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html vendor advisory
http://secunia.com/advisories/27176 third party advisory
http://security.gentoo.org/glsa/glsa-200710-11.xml vendor advisory
http://secunia.com/advisories/27228 third party advisory
http://www.vupen.com/english/advisories/2007/3467 vdb entry
http://www.redhat.com/support/errata/RHSA-2008-0030.html vendor advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-26-103114-1 vendor advisory
http://www.vupen.com/english/advisories/2008/0149 vdb entry
http://www.mandriva.com/security/advisories?name=MDKSA-2007:210 vendor advisory
http://www.securityfocus.com/bid/25898 vdb entry
http://bugs.gentoo.org/show_bug.cgi?id=194606
http://www.vupen.com/english/advisories/2007/3338 vdb entry
http://secunia.com/advisories/27560 third party advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11599 signature vdb entry
http://docs.info.apple.com/article.html?artnum=307562
http://www.vupen.com/english/advisories/2007/3337 vdb entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/36920 vdb entry
http://secunia.com/advisories/28536 third party advisory

Frequently Asked Questions

What is the severity of CVE-2007-4990?
CVE-2007-4990 has been scored as a high severity vulnerability.
How to fix CVE-2007-4990?
To fix CVE-2007-4990, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2007-4990 being actively exploited in the wild?
It is possible that CVE-2007-4990 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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