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CVE-2011-2692

Status Candidate

Overview

The png_handle_sCAL function in pngrutil.c in libpng 1.0.x before 1.0.55, 1.2.x before 1.2.45, 1.4.x before 1.4.8, and 1.5.x before 1.5.4 does not properly handle invalid sCAL chunks, which allows remote attackers to cause a denial of service (memory corruption and application crash) or possibly have unspecified other impact via a crafted PNG image that triggers the reading of uninitialized memory.

Related Files

Gentoo Linux Security Advisory 201206-15
Posted Jun 22, 2012
Authored by Gentoo | Site security.gentoo.org

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.

tags | advisory, remote, denial of service, arbitrary, vulnerability
systems | linux, gentoo
advisories | CVE-2009-5063, CVE-2011-2501, CVE-2011-2690, CVE-2011-2691, CVE-2011-2692, CVE-2011-3026, CVE-2011-3045, CVE-2011-3048, CVE-2011-3464
MD5 | ae78bbfa7031950b578274d43304da08
Apple Security Advisory 2012-05-09-1
Posted May 10, 2012
Authored by Apple | Site apple.com

Apple 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.

tags | advisory, vulnerability
systems | apple, osx
advisories | CVE-2011-0241, CVE-2011-1004, CVE-2011-1005, CVE-2011-1167, CVE-2011-1777, CVE-2011-1778, CVE-2011-1944, CVE-2011-2692, CVE-2011-2821, CVE-2011-2834, CVE-2011-2895, CVE-2011-3212, CVE-2011-3328, CVE-2011-3389, CVE-2011-3919, CVE-2011-4566, CVE-2011-4815, CVE-2011-4885, CVE-2012-0036, CVE-2012-0642, CVE-2012-0649, CVE-2012-0651, CVE-2012-0652, CVE-2012-0654, CVE-2012-0655, CVE-2012-0656, CVE-2012-0657, CVE-2012-0658
MD5 | 9614673327dc336467f1b3577177a46e
Mandriva Linux Security Advisory 2011-151
Posted Oct 17, 2011
Authored by Mandriva | Site mandriva.com

Mandriva 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.

tags | advisory, remote, denial of service, overflow, arbitrary, vulnerability
systems | linux, mandriva
advisories | CVE-2011-2501, CVE-2011-2690, CVE-2011-2691, CVE-2011-2692
MD5 | 1e98b0dfab55ce62baccae4fe42ce35f
Debian Security Advisory 2287-1
Posted Jul 29, 2011
Authored by Debian | Site debian.org

Debian 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.

tags | advisory, arbitrary, vulnerability
systems | linux, debian
advisories | CVE-2011-2501, CVE-2011-2690, CVE-2011-2691, CVE-2011-2692
MD5 | e03f1d2668888322330f2705681d13bd
Red Hat Security Advisory 2011-1105-01
Posted Jul 29, 2011
Authored by Red Hat | Site access.redhat.com

Red 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.

tags | advisory, overflow, arbitrary
systems | linux, redhat
advisories | CVE-2011-2501, CVE-2011-2690, CVE-2011-2692
MD5 | b5c2e011b0f7e35c14e57e330fdbe589
Red Hat Security Advisory 2011-1104-01
Posted Jul 29, 2011
Authored by Red Hat | Site access.redhat.com

Red 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.

tags | advisory, overflow, arbitrary
systems | linux, redhat
advisories | CVE-2011-2690, CVE-2011-2692
MD5 | e9a46509f94aa088c81cd6b5ea4156bd
Red Hat Security Advisory 2011-1103-01
Posted Jul 29, 2011
Authored by Red Hat | Site access.redhat.com

Red 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.

tags | advisory
systems | linux, redhat
advisories | CVE-2011-2692
MD5 | 65b9098f8c563e1fd15d248f70c58f19
Ubuntu Security Notice USN-1175-1
Posted Jul 26, 2011
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu 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.

tags | advisory, denial of service, arbitrary
systems | linux, ubuntu
advisories | CVE-2011-2501, CVE-2011-2690, CVE-2011-2692
MD5 | 49046a8bd962aaec95880e3023ac30d8
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