据称黑客可利用旧版本库文件中包含的安全漏洞对用户进行缓冲区溢出式攻击。
Vulnerability Warning
Several versions of libpng through 1.4.2 (and through 1.2.43 in the older series) contain a bug whereby progressive applications such as web browsers (or the rpng2 demo app included in libpng)
could receive an extra row of image data beyond the height reported in the header, potentially leading to an out-of-bounds write to memory (depending on how the application is written) and the possibility of execution of an attacker's code with the privileges of the libpng user (including remote compromise in the case of a libpng-based browser visiting a hostile web site). This vulnerability has been assigned ID CVE-2010-1205 (via Mozilla).
An additional memory-leak bug, involving images with malformed sCAL chunks, is also present; it could lead to an application crash (denial of service) when viewing such images.
Both bugs are fixed in versions 1.4.3 and 1.2.44, released 25 June 2010.
这个bug是Mozilla的高人发现的！上面英文中红色的是重点！
2010-06-30 11:34:41 のブログ記事
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