CVE-2019-7317 – libpng: use-after-free in png_image_free in png.c
https://notcve.org/view.php?id=CVE-2019-7317
png_image_free in png.c in libpng 1.6.x before 1.6.37 has a use-after-free because png_image_free_function is called under png_safe_execute. La función png_image_free en el archivo png.c en libpng versiones 1.6.x anteriores a 1.6.37, presenta un uso de la memoria previamente liberada porque la función png_image_free_function es llamada bajo png_safe_execute. • http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00002.html http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00029.html http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00084.html http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00038.html http://lists.opensuse.org/opensuse-security-announce/2019-08/msg00044.html http://packetstormsecurity.com/files/152561/Slackware-Security-Advisory-libpng-Updates.html http://www.securityfocus.com/bid/108098 https:/ • CWE-400: Uncontrolled Resource Consumption CWE-416: Use After Free •
CVE-2019-6129
https://notcve.org/view.php?id=CVE-2019-6129
png_create_info_struct in png.c in libpng 1.6.36 has a memory leak, as demonstrated by pngcp. NOTE: a third party has stated "I don't think it is libpng's job to free this buffer. ** EN DISPUTA ** png_create_info_struct en png.c en libpng 1.6.36 tiene una fuga de memoria, tal y como queda demostrado con pngcp. NOTA: un tercero ha declarado "No creo que sea tarea de libpng liberar este búfer." • https://github.com/glennrp/libpng/issues/269 https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html • CWE-401: Missing Release of Memory after Effective Lifetime •
CVE-2018-14048
https://notcve.org/view.php?id=CVE-2018-14048
An issue has been found in libpng 1.6.34. It is a SEGV in the function png_free_data in png.c, related to the recommended error handling for png_read_image. Se ha encontrado un problema en libpng 1.6.34. Es un SEGV en la función png_free_data en png.c, relacionado con el manejo de errores recomendado para png_read_image. • http://packetstormsecurity.com/files/152561/Slackware-Security-Advisory-libpng-Updates.html http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html https://github.com/fouzhe/security/tree/master/libpng https://github.com/glennrp/libpng/issues/238 https://seclists.org/bugtraq/2019/Apr/30 https://security.gentoo.org/glsa/201908-02 •
CVE-2018-13785 – libpng: Integer overflow and resultant divide-by-zero in pngrutil.c:png_check_chunk_length() allows for denial of service
https://notcve.org/view.php?id=CVE-2018-13785
In libpng 1.6.34, a wrong calculation of row_factor in the png_check_chunk_length function (pngrutil.c) may trigger an integer overflow and resultant divide-by-zero while processing a crafted PNG file, leading to a denial of service. En libpng 1.6.34, un cálculo erróneo de row_factor en la función png_check_chunk_length (pngrutil.c) podría desencadenar un desbordamiento de enteros y una división entre cero resultante al procesar un archivo PNG manipulado, lo que conduciría a una denegación de servicio (DoS). • http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html http://www.securityfocus.com/bid/105599 http://www.securitytracker.com/id/1041889 https://access.redhat.com/errata/RHSA-2018:3000 https://access.redhat.com/errata/RHSA-2018:3001 https://access.redhat.com/errata/RHSA-2018:3002 https://access.redhat.com/errata/RHSA-2018:3003 https://access.redhat.com/errata/RHSA-2018:3007 https://access.redhat.com/errata/RHSA-2018:3008 https://access.redhat.com/errata/ • CWE-190: Integer Overflow or Wraparound CWE-369: Divide By Zero •
CVE-2016-10087
https://notcve.org/view.php?id=CVE-2016-10087
The png_set_text_2 function in libpng 0.71 before 1.0.67, 1.2.x before 1.2.57, 1.4.x before 1.4.20, 1.5.x before 1.5.28, and 1.6.x before 1.6.27 allows context-dependent attackers to cause a NULL pointer dereference vectors involving loading a text chunk into a png structure, removing the text, and then adding another text chunk to the structure. La función png_set_text_2 en libpng 0.71 en versiones anteriores a 1.0.67, 1.2.x en versiones anteriores a 1.2.57, 1.4.x en versiones anteriores a 1.4.20, 1.5.x en versiones anteriores a 1.5.28 y 1.6.x en versiones anteriores a 1.6.27 permite que los atacantes dependientes de contexto provoquen que los vectores de desreferencia de puntero NULL impliquen la carga de un fragmento de texto en una estructura png, la eliminación del texto y la adición de otro fragmento de texto a la estructura. • http://www.openwall.com/lists/oss-security/2016/12/29/2 http://www.openwall.com/lists/oss-security/2016/12/30/4 http://www.securityfocus.com/bid/95157 https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E https://security.gentoo.org/glsa/201701-74 https://usn.ubuntu.com/3712-1 https://usn.ubuntu.com/371 • CWE-476: NULL Pointer Dereference •