CVE-2015-8540

Integer underflow in the png_check_keyword function in pngwutil.c in libpng 0.90 through 0.99, 1.0.x before 1.0.66, 1.1.x and 1.2.x before 1.2.56, 1.3.x and 1.4.x before 1.4.19, and 1.5.x before 1.5.26 allows remote attackers to have unspecified impact via a space character as a keyword in a PNG image, which triggers an out-of-bounds read.

There is a underflow read in png_check_keyword() in pngwutil.c in libpng 1.2.x before 1.2.56 (CVE-2015-8540).

These are all security issues fixed in the libpng12-0-1.2.56-1.5 package on the GA media of openSUSE Tumbleweed.

This update for java-1_7_1-ibm fixes the following issues by updating to 7.1-3.30 (bsc#963937):

• CVE-2015-5041: Could could have invoked non-public interface methods under certain circumstances
• CVE-2015-7575: The TLS protocol could allow weaker than expected security caused by a collision attack when using the MD5 hash function for signing a ServerKeyExchange message during a TLS handshake. An attacker could exploit this vulnerability using man-in-the-middle techniques to impersonate a TLS server and obtain credentials
• CVE-2015-7981: libpng could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read in the png_convert_to_rfc1123 function. An attacker could exploit this vulnerability to obtain sensitive information
• CVE-2015-8126: buffer overflow in libpng caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions
• CVE-2015-8472: buffer overflow in libpng caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions
• CVE-2015-8540: libpng is vulnerable to a buffer overflow, caused by a read underflow in png_check_keyword in pngwutil.c. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
• CVE-2016-0402: An unspecified vulnerability related to the Networking component has no confidentiality impact, partial integrity impact, and no availability impact
• CVE-2016-0448: An unspecified vulnerability related to the JMX component could allow a remote attacker to obtain sensitive information
• CVE-2016-0466: An unspecified vulnerability related to the JAXP component could allow a remote attacker to cause a denial of service
• CVE-2016-0483: An unspecified vulnerability related to the AWT component has complete confidentiality impact, complete integrity impact, and complete availability impact
• CVE-2016-0494: An unspecified vulnerability related to the 2D component has complete confidentiality impact, complete integrity impact, and complete availability impact

The following bugs were fixed:

• bsc#960402: resolve package conflicts in devel package

This update for java-1_7_1-ibm fixes the following issues by updating to 7.1-3.30 (bsc#963937):

• CVE-2015-5041: Could could have invoked non-public interface methods under certain circumstances
• CVE-2015-7575: The TLS protocol could allow weaker than expected security caused by a collision attack when using the MD5 hash function for signing a ServerKeyExchange message during a TLS handshake. An attacker could exploit this vulnerability using man-in-the-middle techniques to impersonate a TLS server and obtain credentials
• CVE-2015-7981: libpng could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read in the png_convert_to_rfc1123 function. An attacker could exploit this vulnerability to obtain sensitive information
• CVE-2015-8126: buffer overflow in libpng caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions
• CVE-2015-8472: buffer overflow in libpng caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions
• CVE-2015-8540: libpng is vulnerable to a buffer overflow, caused by a read underflow in png_check_keyword in pngwutil.c. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
• CVE-2016-0402: An unspecified vulnerability related to the Networking component has no confidentiality impact, partial integrity impact, and no availability impact
• CVE-2016-0448: An unspecified vulnerability related to the JMX component could allow a remote attacker to obtain sensitive information
• CVE-2016-0466: An unspecified vulnerability related to the JAXP component could allow a remote attacker to cause a denial of service
• CVE-2016-0483: An unspecified vulnerability related to the AWT component has complete confidentiality impact, complete integrity impact, and complete availability impact
• CVE-2016-0494: An unspecified vulnerability related to the 2D component has complete confidentiality impact, complete integrity impact, and complete availability impact

The following bugs were fixed:

• bsc#960402: resolve package conflicts in devel package

This update for java-1_6_0-ibm fixes the following issues by updating to 6.0-16.20 (bsc#963937)

• CVE-2015-5041: Could could have invoked non-public interface methods under certain circumstances
• CVE-2015-7575: The TLS protocol could allow weaker than expected security caused by a collision attack when using the MD5 hash function for signing a ServerKeyExchange message during a TLS handshake. An attacker could exploit this vulnerability using man-in-the-middle techniques to impersonate a TLS server and obtain credentials
• CVE-2015-7981: libpng could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read in the png_convert_to_rfc1123 function. An attacker could exploit this vulnerability to obtain sensitive information
• CVE-2015-8126: buffer overflow in libpng caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions
• CVE-2015-8472: buffer overflow in libpng caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions
• CVE-2015-8540: libpng is vulnerable to a buffer overflow, caused by a read underflow in png_check_keyword in pngwutil.c. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
• CVE-2016-0402: An unspecified vulnerability related to the Networking component has no confidentiality impact, partial integrity impact, and no availability impact
• CVE-2016-0448: An unspecified vulnerability related to the JMX component could allow a remote attacker to obtain sensitive information
• CVE-2016-0466: An unspecified vulnerability related to the JAXP component could allow a remote attacker to cause a denial of service
• CVE-2016-0483: An unspecified vulnerability related to the AWT component has complete confidentiality impact, complete integrity impact, and complete availability impact
• CVE-2016-0494: An unspecified vulnerability related to the 2D component has complete confidentiality impact, complete integrity impact, and complete availability impact

The following bugs were fixed:

• bsc#960402: resolve package conflicts in devel package
• bsc#960286: resolve package conflicts in the fonts subpackage

This update for java-1_6_0-ibm fixes the following issues by updating to 6.0-16.20 (bsc#963937)

• CVE-2015-5041: Could could have invoked non-public interface methods under certain circumstances
• CVE-2015-7575: The TLS protocol could allow weaker than expected security caused by a collision attack when using the MD5 hash function for signing a ServerKeyExchange message during a TLS handshake. An attacker could exploit this vulnerability using man-in-the-middle techniques to impersonate a TLS server and obtain credentials
• CVE-2015-7981: libpng could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read in the png_convert_to_rfc1123 function. An attacker could exploit this vulnerability to obtain sensitive information
• CVE-2015-8126: buffer overflow in libpng caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions
• CVE-2015-8472: buffer overflow in libpng caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions
• CVE-2015-8540: libpng is vulnerable to a buffer overflow, caused by a read underflow in png_check_keyword in pngwutil.c. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
• CVE-2016-0402: An unspecified vulnerability related to the Networking component has no confidentiality impact, partial integrity impact, and no availability impact
• CVE-2016-0448: An unspecified vulnerability related to the JMX component could allow a remote attacker to obtain sensitive information
• CVE-2016-0466: An unspecified vulnerability related to the JAXP component could allow a remote attacker to cause a denial of service
• CVE-2016-0483: An unspecified vulnerability related to the AWT component has complete confidentiality impact, complete integrity impact, and complete availability impact
• CVE-2016-0494: An unspecified vulnerability related to the 2D component has complete confidentiality impact, complete integrity impact, and complete availability impact

The following bugs were fixed:

• bsc#960402: resolve package conflicts in devel package
• bsc#960286: resolve package conflicts in the fonts subpackage

This update for java-1_7_0-ibm fixes the following issues by updating to 7.0-9.30 (bsc#963937):

• CVE-2015-5041: Could could have invoked non-public interface methods under certain circumstances
• CVE-2015-7575: The TLS protocol could allow weaker than expected security caused by a collision attack when using the MD5 hash function for signing a ServerKeyExchange message during a TLS handshake. An attacker could exploit this vulnerability using man-in-the-middle techniques to impersonate a TLS server and obtain credentials
• CVE-2015-7981: libpng could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read in the png_convert_to_rfc1123 function. An attacker could exploit this vulnerability to obtain sensitive information
• CVE-2015-8126: buffer overflow in libpng caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions
• CVE-2015-8472: buffer overflow in libpng caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions
• CVE-2015-8540: libpng is vulnerable to a buffer overflow, caused by a read underflow in png_check_keyword in pngwutil.c. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
• CVE-2016-0402: An unspecified vulnerability related to the Networking component has no confidentiality impact, partial integrity impact, and no availability impact
• CVE-2016-0448: An unspecified vulnerability related to the JMX component could allow a remote attacker to obtain sensitive information
• CVE-2016-0466: An unspecified vulnerability related to the JAXP component could allow a remote attacker to cause a denial of service
• CVE-2016-0483: An unspecified vulnerability related to the AWT component has complete confidentiality impact, complete integrity impact, and complete availability impact
• CVE-2016-0494: An unspecified vulnerability related to the 2D component has complete confidentiality impact, complete integrity impact, and complete availability impact

The following bugs were fixed:

• bsc#960402: resolve package conflicts in devel package

This update for java-1_7_0-ibm fixes the following issues by updating to 7.0-9.30 (bsc#963937):

• CVE-2015-5041: Could could have invoked non-public interface methods under certain circumstances
• CVE-2015-7575: The TLS protocol could allow weaker than expected security caused by a collision attack when using the MD5 hash function for signing a ServerKeyExchange message during a TLS handshake. An attacker could exploit this vulnerability using man-in-the-middle techniques to impersonate a TLS server and obtain credentials
• CVE-2015-7981: libpng could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read in the png_convert_to_rfc1123 function. An attacker could exploit this vulnerability to obtain sensitive information
• CVE-2015-8126: buffer overflow in libpng caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions
• CVE-2015-8472: buffer overflow in libpng caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions
• CVE-2015-8540: libpng is vulnerable to a buffer overflow, caused by a read underflow in png_check_keyword in pngwutil.c. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
• CVE-2016-0402: An unspecified vulnerability related to the Networking component has no confidentiality impact, partial integrity impact, and no availability impact
• CVE-2016-0448: An unspecified vulnerability related to the JMX component could allow a remote attacker to obtain sensitive information
• CVE-2016-0466: An unspecified vulnerability related to the JAXP component could allow a remote attacker to cause a denial of service
• CVE-2016-0483: An unspecified vulnerability related to the AWT component has complete confidentiality impact, complete integrity impact, and complete availability impact
• CVE-2016-0494: An unspecified vulnerability related to the 2D component has complete confidentiality impact, complete integrity impact, and complete availability impact

The following bugs were fixed:

• bsc#960402: resolve package conflicts in devel package

This update for java-1_6_0-ibm fixes the following issues by updating to 6.0-16.20 (bsc#963937)

• CVE-2015-5041: Could could have invoked non-public interface methods under certain circumstances
• CVE-2015-7575: The TLS protocol could allow weaker than expected security caused by a collision attack when using the MD5 hash function for signing a ServerKeyExchange message during a TLS handshake. An attacker could exploit this vulnerability using man-in-the-middle techniques to impersonate a TLS server and obtain credentials
• CVE-2015-7981: libpng could allow a remote attacker to obtain sensitive information, caused by an out-of-bounds read in the png_convert_to_rfc1123 function. An attacker could exploit this vulnerability to obtain sensitive information
• CVE-2015-8126: buffer overflow in libpng caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions
• CVE-2015-8472: buffer overflow in libpng caused by improper bounds checking by the png_set_PLTE() and png_get_PLTE() functions
• CVE-2015-8540: libpng is vulnerable to a buffer overflow, caused by a read underflow in png_check_keyword in pngwutil.c. By sending an overly long argument, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.
• CVE-2016-0402: An unspecified vulnerability related to the Networking component has no confidentiality impact, partial integrity impact, and no availability impact
• CVE-2016-0448: An unspecified vulnerability related to the JMX component could allow a remote attacker to obtain sensitive information
• CVE-2016-0466: An unspecified vulnerability related to the JAXP component could allow a remote attacker to cause a denial of service
• CVE-2016-0483: An unspecified vulnerability related to the AWT component has complete confidentiality impact, complete integrity impact, and complete availability impact
• CVE-2016-0494: An unspecified vulnerability related to the 2D component has complete confidentiality impact, complete integrity impact, and complete availability impact

The following bugs were fixed:

• bsc#960402: resolve package conflicts in devel package
• bsc#960286: resolve package conflicts in the fonts subpackage

This update for libpng12 fixes the following issues:

Security issues fixed:

• CVE-2015-8540: read underflow in libpng (bsc#958791)
• CVE-2016-10087: NULL pointer dereference in png_set_text_2() (bsc#1017646)

This update for libpng12-0 fixes the following issues:

Security issues fixed:

• CVE-2015-8540: read underflow in libpng (bsc#958791)
• CVE-2016-10087: NULL pointer dereference in png_set_text_2() (bsc#1017646)

This update for libpng15 fixes the following issues:

Security issues fixed:

• CVE-2015-8540: read underflow in libpng (bsc#958791)
• CVE-2016-10087: NULL pointer dereference in png_set_text_2() (bsc#1017646)

It was discovered that libpng incorrectly handled certain small bit-depth values. If a user or automated system using libpng were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service or execute code with the privileges of the user invoking the program. (CVE-2015-8472)

Qixue Xiao and Chen Yu discovered that libpng incorrectly handled certain malformed images. If a user or automated system using libpng were tricked into opening a specially crafted image, an attacker could exploit this to cause a denial of service. (CVE-2015-8540)