This update fixes an old NULL pointer dereference bug in png_set_text_2() discovered and patched by Patrick Keshishian (CVE-2016-10087). The potential 'NULL dereference' bug has existed in libpng since version 0.71 of June 26, 1995. To be vulnerable, an application has to load a text chunk into the png structure, then delete all text, then add another text chunk to the same png structure, which seems to be an unlikely sequence, but it has happened.

The update also fixes some documentation typos and an instance of undefined behavior.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

- Update to upstream release **1.2.57**.

  - Fixes **CVE-2016-10087**.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

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)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

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)

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

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)

This update was imported from the SUSE:SLE-12-SP1:Update update project.

According to the version of the libpng packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - 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.(CVE-2016-10087)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the syslinux packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    The png_format_buffer function in pngerror.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 allows remote attackers to cause a denial of service (application     crash) via a crafted PNG image that triggers an out-of-bounds read during the copying of error-message     data.  NOTE: this vulnerability exists because of a CVE-2004-0421 regression. NOTE: this is called an off-     by-one error by some sources.(CVE-2011-2501)

    Buffer overflow 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, 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.(CVE-2011-2690)

    The png_err function in pngerror.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 makes a function call using a NULL pointer argument instead of an empty-string     argument, which allows remote attackers to cause a denial of service (application crash) via a crafted PNG     image.(CVE-2011-2691)

    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.(CVE-2011-2692)

    Integer signedness error in the png_inflate function in pngrutil.c in libpng before 1.4.10beta01, as used     in Google Chrome before 17.0.963.83 and other products, allows remote attackers to cause a denial of     service (application crash) or possibly execute arbitrary code via a crafted PNG file, a different     vulnerability than CVE-2011-3026.(CVE-2011-3045)

    The png_set_text_2 function in pngset.c in libpng 1.0.x before 1.0.59, 1.2.x before 1.2.49, 1.4.x before     1.4.11, and 1.5.x before 1.5.10 allows remote attackers to cause a denial of service (crash) or execute     arbitrary code via a crafted text chunk in a PNG image file, which triggers a memory allocation failure     that is not properly handled, leading to a heap-based buffer overflow.(CVE-2011-3048)

    The png_push_read_zTXt function in pngpread.c in libpng 1.0.x before 1.0.58, 1.2.x before 1.2.48, 1.4.x     before 1.4.10, and 1.5.x before 1.5.10 allows remote attackers to cause a denial of service (out-of-bounds     read) via a large avail_in field value in a PNG image.(CVE-2012-3425)

    The png_convert_to_rfc1123 function in png.c in libpng 1.0.x before 1.0.64, 1.2.x before 1.2.54, and 1.4.x     before 1.4.17 allows remote attackers to obtain sensitive process memory information via crafted tIME     chunk data in an image file, which triggers an out-of-bounds read.(CVE-2015-7981)

    Multiple buffer overflows in the (1) png_set_PLTE and (2) png_get_PLTE functions in libpng before 1.0.64,     1.1.x and 1.2.x before 1.2.54, 1.3.x and 1.4.x before 1.4.17, 1.5.x before 1.5.24, and 1.6.x before 1.6.19     allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other     impact via a small bit-depth value in an IHDR (aka image header) chunk in a PNG image.(CVE-2015-8126)

    Buffer overflow in the png_set_PLTE function in libpng before 1.0.65, 1.1.x and 1.2.x before 1.2.55,     1.3.x, 1.4.x before 1.4.18, 1.5.x before 1.5.25, and 1.6.x before 1.6.20 allows remote attackers to cause     a denial of service (application crash) or possibly have unspecified other impact via a small bit-depth     value in an IHDR (aka image header) chunk in a PNG image.  NOTE: this vulnerability exists because of an     incomplete fix for CVE-2015-8126.(CVE-2015-8472)

    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.(CVE-2015-8540)

    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.(CVE-2016-10087)

    libpng before 1.6.32 does not properly check the length of chunks against the user limit.(CVE-2017-12652)

Tenable has extracted the preceding description block directly from the EulerOS syslinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

According to the versions of the syslinux packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

    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.(CVE-2016-10087)

    The png_push_read_zTXt function in pngpread.c in libpng 1.0.x before 1.0.58, 1.2.x before 1.2.48, 1.4.x     before 1.4.10, and 1.5.x before 1.5.10 allows remote attackers to cause a denial of service (out-of-bounds     read) via a large avail_in field value in a PNG image.(CVE-2012-3425)

    The png_format_buffer function in pngerror.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 allows remote attackers to cause a denial of service (application     crash) via a crafted PNG image that triggers an out-of-bounds read during the copying of error-message     data. NOTE: this vulnerability exists because of a CVE-2004-0421 regression.NOTE: this is called an off-     by-one error by some sources.(CVE-2011-2501)

    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.(CVE-2011-2692)

    The png_convert_to_rfc1123 function in png.c in libpng 1.0.x before 1.0.64, 1.2.x before 1.2.54, and 1.4.x     before 1.4.17 allows remote attackers to obtain sensitive process memory information via crafted tIME     chunk data in an image file, which triggers an out-of-bounds read.(CVE-2015-7981)

    The png_err function in pngerror.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 makes a function call using a NULL pointer argument instead of an empty-string     argument, which allows remote attackers to cause a denial of service (application crash) via a crafted PNG     image.(CVE-2011-2691)

    Buffer overflow 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, 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.(CVE-2011-2690)

    The png_set_text_2 function in pngset.c in libpng 1.0.x before 1.0.59, 1.2.x before 1.2.49, 1.4.x before     1.4.11, and 1.5.x before 1.5.10 allows remote attackers to cause a denial of service (crash) or execute     arbitrary code via a crafted text chunk in a PNG image file, which triggers a memory allocation failure     that is not properly handled, leading to a heap-based buffer overflow.(CVE-2011-3048)

    Integer signedness error in the png_inflate function in pngrutil.c in libpng before 1.4.10beta01, as used     in Google Chrome before 17.0.963.83 and other products, allows remote attackers to cause a denial of     service (application crash) or possibly execute arbitrary code via a crafted PNG file, a different     vulnerability than CVE-2011-3026.(CVE-2011-3045)

    Multiple buffer overflows in the (1) png_set_PLTE and (2) png_get_PLTE functions in libpng before 1.0.64,     1.1.x and 1.2.x before 1.2.54, 1.3.x and 1.4.x before 1.4.17, 1.5.x before 1.5.24, and 1.6.x before 1.6.19     allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other     impact via a small bit-depth value in an IHDR (aka image header) chunk in a PNG image.(CVE-2015-8126)

    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.(CVE-2015-8540)

    Buffer overflow in the png_set_PLTE function in libpng before 1.0.65, 1.1.x and 1.2.x before 1.2.55,     1.3.x, 1.4.x before 1.4.18, 1.5.x before 1.5.25, and 1.6.x before 1.6.20 allows remote attackers to cause     a denial of service (application crash) or possibly have unspecified other impact via a small bit-depth     value in an IHDR (aka image header) chunk in a PNG image. NOTE: this vulnerability exists because of an     incomplete fix for CVE-2015-8126.(CVE-2015-8472)

    libpng before 1.6.32 does not properly check the length of chunks against the user limit.(CVE-2017-12652)

Tenable has extracted the preceding description block directly from the EulerOS syslinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

- Update to upstream release **1.5.28**.

  - Fixes **CVE-2016-10087**.

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
96350	Fedora 24 : libpng10 (2016-1a7e14d084)	Nessus	Fedora Local Security Checks	2017/1/10	2026/1/6	high
96353	Fedora 25 : libpng10 (2016-a4b06a036b)	Nessus	Fedora Local Security Checks	2017/1/10	2026/1/6	high
99412	Fedora 24 : libpng12 (2017-84bc8ac268)	Nessus	Fedora Local Security Checks	2017/4/17	2025/12/25	high
99416	Fedora 25 : libpng12 (2017-bad9942e42)	Nessus	Fedora Local Security Checks	2017/4/17	2025/12/25	high
99088	SUSE SLED12 / SLES12 Security Update : libpng12 (SUSE-SU-2017:0860-1)	Nessus	SuSE Local Security Checks	2017/3/30	2025/12/26	high
99243	SUSE SLED12 / SLES12 Security Update : libpng15 (SUSE-SU-2017:0950-1)	Nessus	SuSE Local Security Checks	2017/4/7	2025/12/26	high
99428	openSUSE Security Update : libpng15 (openSUSE-2017-477)	Nessus	SuSE Local Security Checks	2017/4/18	2025/12/25	high
124434	EulerOS 2.0 SP3 : libpng (EulerOS-SA-2019-1307)	Nessus	Huawei Local Security Checks	2019/5/1	2024/5/30	high
210631	EulerOS 2.0 SP9 : syslinux (EulerOS-SA-2024-2839)	Nessus	Huawei Local Security Checks	2024/11/8	2024/11/8	critical
210632	EulerOS 2.0 SP10 : syslinux (EulerOS-SA-2024-2915)	Nessus	Huawei Local Security Checks	2024/11/8	2024/11/8	critical
99319	Fedora 24 : libpng15 (2017-66fd940572)	Nessus	Fedora Local Security Checks	2017/4/13	2025/12/26	high

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