Ulf Harnhammar has reported a vulnerability in Lynx, which can be exploited by malicious people to compromise a user's system.
The vulnerability is caused due to a boundary error in the "HTrjis()" function in the handling of article headers sent from NNTP (Network News Transfer Protocol) servers. This can be exploited to cause a stack-based buffer overflow by e.g. tricking a user into visiting a malicious web site which redirects to a malicious NNTP server via the "nntp:" URI handler.
Successful exploitation allows execution of arbitrary code.
The vulnerability has been reported in versions 2.8.3, 2.8.4, 2.8.5, and 2.8.6dev.13. Other versions may also be affected.
Solution: The vulnerability has been fixed in version 2.8.6dev.14.
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