Chris Evans has discovered multiple vulnerabilities in libpng, which can be exploited by malicious people to compromise a vulnerable system or cause a DoS (Denial of Service).
The vulnerabilities are caused due to NULL pointer dereference errors and boundary errors within various functions when processing PNG files. Some of these can be exploited to cause stack-based buffer overflows via specially crafted PNG files.
The vulnerabilities can e.g. be exploited by tricking a user into visiting a malicious website or view a malicious email with an affected application linked to libpng.
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Subject: libpng Multiple Vulnerabilities
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