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File and folder permissions for the applications could permit non-privileged users to change key program files on the Apple operating system, Adobe said in its security alert. The second flaw Adobe has fixed affects version 6.0.4 and earlier of Adobe Reader and Adobe Acrobat, but only on Mac OS.
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A computer can be made to execute potentially malicious code by feeding in extra data that is designed to flood the buffer. They occur when a program allows data to be written beyond the allocated end of a buffer in memory. Opening that file could cause a complete compromise of the vulnerable PC or cause Acrobat to crash.īuffer overflows are a commonly exploited security problem.
#Cnet adobe pdf reader update
The company categorizes this as a "critical" update and recommends computer users update to version 6.0.5.Īn attacker could exploit the vulnerability by crafting a malicious PDF (Portable Document Format) file. The most serious of the two Adobe flaws is a "buffer overflow" vulnerability that affects Adobe Acrobat 6.0.4 and earlier for both Windows and Mac OS, Adobe said. If left unpatched, the flaws could put Windows and Mac users at risk of a cyberattack.Īdobe's fixes came on the same day that Microsoft issued seven security bulletins with updates to repair 18 vulnerabilities in Windows and Office, including what security experts deem a dangerous Windows worm hole. The vulnerabilities affect Adobe's Acrobat and Reader software for both the Windows operating system and Apple Computer's Mac OS, Adobe said in two separate security advisories. Adobe Systems joined Microsoft on "Patch Tuesday" and delivered fixes for two security flaws in the ubiquitous Adobe PDF reader software.