A hacker calling himself Arr1val has published proof-of-concept exploit codes for two 0-day vulnerabilities affecting Adobe Reader and Acrobat. The company has already confirmed one of them and strongly suggests disabling JavaScript in the products until a patch will be made available.
The flaws are classified by SecurityFocus as “boundary condition errors.” The first is located in thegetAnnots() JavaScript function and the other in spell.customDictionaryOpen(). Both of them make it possible for an attacker to execute arbitrary code on systems with the affected products installed, by tricking users into opening a maliciously crafted PDF file.
According to Arr1val’s PoC exploits, published on Packet Storm during the early hours of Tuesday, the vulnerabilities were tested on Adobe Reader 9.1 and Adobe 8.1.4 running on Linux. Adobe acknowledged the report and started an investigation into the issues. “We are currently investigating, and will have an update once we get more information,” David Lenoe initiallyannounced on the blog of Adobe’s Product Security Incident Response Team (PSIRT). More