Gentoo Linux Security Advisory 201206-15 - Multiple vulnerabilities in libpng might allow remote attackers to execute arbitrary code or cause a Denial of Service condition. Versions less than 1.5.10 are affected.
17c59fa4ea570ff973946e70fe5303b4a6d7f8e5ec1db2b26617090a9a49954bApple Security Advisory 2012-05-09-1 - OS X Lion v10.7.4 and Security Update 2012-002 is now available and addresses multiple security issues. An issue existed in the handling of network account logins. The login process recorded sensitive information in the system log, where other users of the system could read it. A temporary file race condition issue existed in blued's initialization routine. There are known attacks on the confidentiality of SSL 3.0 and TLS 1.0 when a cipher suite uses a block cipher in CBC mode. curl disabled the 'empty fragment' countermeasure which prevented these attacks. This issue is addressed by enabling empty fragments. A data injection issue existed in curl's handling of URLs. This issue is addressed through improved validation of URLs. This issue does not affect systems prior to OS X Lion. Various other vulnerabilities have been addressed.
8a1ec648cdab00dde0f7ff37efd462d6ad93a16f2b5d89ca92fb566b939516e3Mandriva Linux Security Advisory 2011-151 - Multiple vulnerabilities has been discovered and corrected in libpng. The png_format_buffer function in pngerror.c in libpng allows remote attackers to cause a denial of service via a crafted PNG image that triggers an out-of-bounds read during the copying of error-message data. Buffer overflow in libpng, when used by an application that calls the png_rgb_to_gray function but not the png_set_expand function, allows remote attackers to overwrite memory with an arbitrary amount of data, and possibly have unspecified other impact, via a crafted PNG image. Various other issues were also addressed.
acad0dfc8bb292aee7ddbc1a0ce9f17fb2448351051f964814c33efc660c99c8Debian Linux Security Advisory 2287-1 - The PNG library libpng has been affected by several vulnerabilities. The most critical one is the identified as CVE-2011-2690. Using this vulnerability, an attacker is able to overwrite memory with an arbitrary amount of data controlled by her via a crafted PNG image.
3e4ff8efb347ee8c838157bb520547cc9e35f8767d8e12ee5f0743289e6a2a10Red Hat Security Advisory 2011-1105-01 - The libpng packages contain a library of functions for creating and manipulating PNG image format files. A buffer overflow flaw was found in the way libpng processed certain PNG image files. An attacker could create a specially-crafted PNG image that, when opened, could cause an application using libpng to crash or, potentially, execute arbitrary code with the privileges of the user running the application. Note: The application behavior required to exploit CVE-2011-2690 is rarely used. No application shipped with Red Hat Enterprise Linux behaves this way, for example.
a15792b3f1e80ca14608f17434901abad86b00e590ca41af294df19788e35990Red Hat Security Advisory 2011-1104-01 - The libpng packages contain a library of functions for creating and manipulating PNG image format files. A buffer overflow flaw was found in the way libpng processed certain PNG image files. An attacker could create a specially-crafted PNG image that, when opened, could cause an application using libpng to crash or, potentially, execute arbitrary code with the privileges of the user running the application. Note: The application behavior required to exploit CVE-2011-2690 is rarely used. No application shipped with Red Hat Enterprise Linux behaves this way, for example.
092507d3038dfbf480768d784c2a9a2cdafa92eeddaa12ebcd38a530810d7ef6Red Hat Security Advisory 2011-1103-01 - The libpng packages contain a library of functions for creating and manipulating PNG image format files. An uninitialized memory read issue was found in the way libpng processed certain PNG images that use the Physical Scale extension. An attacker could create a specially-crafted PNG image that, when opened, could cause an application using libpng to crash. Users of libpng and libpng10 should upgrade to these updated packages, which contain a backported patch to correct this issue. All running applications using libpng or libpng10 must be restarted for the update to take effect.
9dc92fb24236ca66b3fa9371b984aa55e313f796547e3aad55237ae4d87a267bUbuntu Security Notice 1175-1 - Frank Busse discovered that libpng did not properly handle certain malformed PNG images. If a user or automated system were tricked into opening a crafted PNG file, an attacker could cause libpng to crash, resulting in a denial of service. This issue only affected Ubuntu 10.04 LTS, 10.10, and 11.04. It was discovered that libpng did not properly handle certain malformed PNG images. If a user or automated system were tricked into opening a crafted PNG file, an attacker could cause a denial of service or possibly execute arbitrary code with the privileges of the user invoking the program. Various other issues were also addressed.
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