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…
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EPSS puts the probability of exploitation in the next 30 days at 10.7%, higher than 96% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 10.74% probability · 96th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-189
- Affected
- x.org/x font server
- Source
- cve@mitre.org
References
- http://bugs.freedesktop.org/show_bug.cgi?id=12299
- http://bugs.gentoo.org/show_bug.cgi?id=194606
- http://docs.info.apple.com/article.html?artnum=307562
- http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01323725
- http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=602
- http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html
- http://lists.freedesktop.org/archives/xorg-announce/2007-October/000416.html
- http://secunia.com/advisories/27040
- http://secunia.com/advisories/27052
- http://secunia.com/advisories/27060
- http://secunia.com/advisories/27176
- http://secunia.com/advisories/27228
- http://secunia.com/advisories/27240
- http://secunia.com/advisories/27560
- http://secunia.com/advisories/28004
- http://secunia.com/advisories/28514
- http://secunia.com/advisories/28536
- http://secunia.com/advisories/28542
- http://secunia.com/advisories/29420
- http://security.gentoo.org/glsa/glsa-200710-11.xml
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-103114-1
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-200642-1
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:210
- http://www.novell.com/linux/security/advisories/2007_54_xorg.html
- http://www.redhat.com/support/errata/RHSA-2008-0029.html
- http://www.redhat.com/support/errata/RHSA-2008-0030.html
- http://www.securityfocus.com/archive/1/481432/100/0/threaded
- http://www.securityfocus.com/bid/25898
- http://www.securitytracker.com/id?1018763
- http://www.vupen.com/english/advisories/2007/3337
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.