CVE-2020-7059

When using fgetss() function to read data with stripping tags, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause this function to read past the allocated buffer. This may lead to information disclosure or crash.

PHP is an HTML-embedded scripting language. PHP attempts to make it easy for developers to write dynamically generated web pages. PHP also offers built-in database integration for several commercial and non-commercial database management systems, so writing a database-enabled webpage with PHP is fairly simple. The most common use of PHP coding is probably as a replacement for CGI scripts. The php package contains the module (often referred to as mod_php) which adds support for the PHP language to Apache HTTP Server.\r\n\r\n Security Fix(es):\r\n\r\n In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash.(CVE-2020-7071)\r\n\r\n When using fgetss() function to read data with stripping tags, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause this function to read past the allocated buffer. This may lead to information disclosure or crash.(CVE-2020-7059)\r\n\r\n In PHP versions 7.2.x below 7.2.28, 7.3.x below 7.3.15 and 7.4.x below 7.4.3, when using file upload functionality, if upload progress tracking is enabled, but session.upload_progress.cleanup is set to 0 (disabled), and the file upload fails, the upload procedure would try to clean up data that does not exist and encounter null pointer dereference, which would likely lead to a crash.(CVE-2020-7062)\r\n\r\n

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

The following packages have been upgraded to a later upstream version: php (7.3.20). (BZ#1856655)

Security Fix(es):

• php: Out-of-bounds read due to integer overflow in iconv_mime_decode_headers() (CVE-2019-11039)

• php: Buffer over-read in exif_read_data() (CVE-2019-11040)

• php: DirectoryIterator class accepts filenames with embedded \0 byte and treats them as terminating at that byte (CVE-2019-11045)

• php: Information disclosure in exif_read_data() (CVE-2019-11047)

• php: Integer wraparounds when receiving multipart forms (CVE-2019-11048)

• oniguruma: Use-after-free in onig_new_deluxe() in regext.c (CVE-2019-13224)

• oniguruma: NULL pointer dereference in match_at() in regexec.c (CVE-2019-13225)

• oniguruma: Stack exhaustion in regcomp.c because of recursion in regparse.c (CVE-2019-16163)

• oniguruma: Heap-based buffer over-read in function gb18030_mbc_enc_len in file gb18030.c (CVE-2019-19203)

• oniguruma: Heap-based buffer over-read in function fetch_interval_quantifier in regparse.c (CVE-2019-19204)

• pcre: Out of bounds read in JIT mode when \X is used in non-UTF mode (CVE-2019-20454)

• php: Out of bounds read in php_strip_tags_ex (CVE-2020-7059)

• php: Global buffer-overflow in mbfl_filt_conv_big5_wchar function (CVE-2020-7060)

• php: NULL pointer dereference in PHP session upload progress (CVE-2020-7062)

• php: Files added to tar with Phar::buildFromIterator have all-access permissions (CVE-2020-7063)

• php: Information disclosure in exif_read_data() function (CVE-2020-7064)

• php: Using mb_strtolower() function with UTF-32LE encoding leads to potential code execution (CVE-2020-7065)

• php: Heap buffer over-read in exif_scan_thumbnail() (CVE-2019-11041)

• php: Heap buffer over-read in exif_process_user_comment() (CVE-2019-11042)

• php: Out of bounds read when parsing EXIF information (CVE-2019-11050)

• oniguruma: Heap-based buffer overflow in str_lower_case_match in regexec.c (CVE-2019-19246)

• php: Information disclosure in function get_headers (CVE-2020-7066)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

When using fgetss() function to read data with stripping tags, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause this function to read past the allocated buffer. This may lead to information disclosure or crash.

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server.

The following packages have been upgraded to a later upstream version: php (7.3.20). (BZ#1856655)

Security Fix(es):

• php: Out-of-bounds read due to integer overflow in iconv_mime_decode_headers() (CVE-2019-11039)

• php: Buffer over-read in exif_read_data() (CVE-2019-11040)

• php: DirectoryIterator class accepts filenames with embedded \0 byte and treats them as terminating at that byte (CVE-2019-11045)

• php: Information disclosure in exif_read_data() (CVE-2019-11047)

• php: Integer wraparounds when receiving multipart forms (CVE-2019-11048)

• oniguruma: Use-after-free in onig_new_deluxe() in regext.c (CVE-2019-13224)

• oniguruma: NULL pointer dereference in match_at() in regexec.c (CVE-2019-13225)

• oniguruma: Stack exhaustion in regcomp.c because of recursion in regparse.c (CVE-2019-16163)

• oniguruma: Heap-based buffer over-read in function gb18030_mbc_enc_len in file gb18030.c (CVE-2019-19203)

• oniguruma: Heap-based buffer over-read in function fetch_interval_quantifier in regparse.c (CVE-2019-19204)

• pcre: Out of bounds read in JIT mode when \X is used in non-UTF mode (CVE-2019-20454)

• php: Out of bounds read in php_strip_tags_ex (CVE-2020-7059)

• php: Global buffer-overflow in mbfl_filt_conv_big5_wchar function (CVE-2020-7060)

• php: NULL pointer dereference in PHP session upload progress (CVE-2020-7062)

• php: Files added to tar with Phar::buildFromIterator have all-access permissions (CVE-2020-7063)

• php: Information disclosure in exif_read_data() function (CVE-2020-7064)

• php: Using mb_strtolower() function with UTF-32LE encoding leads to potential code execution (CVE-2020-7065)

• php: Heap buffer over-read in exif_scan_thumbnail() (CVE-2019-11041)

• php: Heap buffer over-read in exif_process_user_comment() (CVE-2019-11042)

• php: Out of bounds read when parsing EXIF information (CVE-2019-11050)

• oniguruma: Heap-based buffer overflow in str_lower_case_match in regexec.c (CVE-2019-19246)

• php: Information disclosure in function get_headers (CVE-2020-7066)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

When using fgetss() function to read data with stripping tags, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause this function to read past the allocated buffer. This may lead to information disclosure or crash.

When using fgetss() function to read data with stripping tags, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause this function to read past the allocated buffer. This may lead to information disclosure or crash.

When using fgetss() function to read data with stripping tags, in PHP versions 7.2.x below 7.2.27, 7.3.x below 7.3.14 and 7.4.x below 7.4.2 it is possible to supply data that will cause this function to read past the allocated buffer. This may lead to information disclosure or crash.

• CVE-2020-7059: fix read past the allocated buffer in the fgetss() function

Updated php packages fix security vulnerabilities:

Two buffer overflows in string and mbstring handling have been found (CVE-2020-7059, CVE-2020-7060).

Other security fixes have been applied:

• Session: Fixed bug #79091 (heap use-after-free in session_create_id()).
• Date: Fixed bug #79015 (undefined-behavior in php_date.c).

For other fixes in this update, see the referenced chagelog.

This update for php7 fixes the following issues:

• CVE-2020-7062: Fixed a null pointer dereference when using file upload functionality under specific circumstances (bsc#1165280).
• CVE-2020-7063: Fixed an issue where adding files change the permissions to default (bsc#1165289).
• CVE-2020-7059: Fixed an out of bounds read in php_strip_tags_ex which may have led to denial of service (bsc#1162629).
• CVE-2020-7060: Fixed a global buffer overflow in mbfl_filt_conv_big5_wchar which may have led to memory corruption (bsc#1162632).

This update was imported from the SUSE:SLE-15:Update update project.

This update for php72 fixes the following issues:

Security issues fixed:

• CVE-2020-7059: Fixed an out-of-bounds read in php_strip_tags_ex (bsc#1162629).
• CVE-2020-7060: Fixed a global buffer-overflow in mbfl_filt_conv_big5_wchar (bsc#1162632).
• CVE-2019-20433: Fixed a buffer over-read when processing strings ending with a single '\0' byte with ucs-2 and ucs-4 encoding (bsc#1161982).

This update for php5 fixes the following issues:

Security issues fixed:

• CVE-2019-11041: Fixed heap buffer over-read in exif_scan_thumbnail() (bsc#1146360).
• CVE-2019-11042: Fixed heap buffer over-read in exif_process_user_comment() (bsc#1145095).
• CVE-2019-11043: Fixed possible remote code execution via env_path_info underflow in fpm_main.c (bsc#1154999).
• CVE-2019-11045: Fixed an issue with the PHP DirectoryIterator class that accepts filenames with embedded \0 bytes (bsc#1159923).
• CVE-2019-11046: Fixed an out-of-bounds read in bc_shift_addsub (bsc#1159924).
• CVE-2019-11047: Fixed an information disclosure in exif_read_data (bsc#1159922).
• CVE-2019-11050: Fixed a buffer over-read in the EXIF extension (bsc#1159927).
• CVE-2020-7059: Fixed an out-of-bounds read in php_strip_tags_ex (bsc#1162629).
• CVE-2020-7060: Fixed a global buffer-overflow in mbfl_filt_conv_big5_wchar (bsc#1162632).

This update for php7 fixes the following issues:

• CVE-2020-7062: Fixed a null pointer dereference when using file upload functionality under specific circumstances (bsc#1165280).
• CVE-2020-7063: Fixed an issue where adding files change the permissions to default (bsc#1165289).
• CVE-2020-7059: Fixed an out of bounds read in php_strip_tags_ex which may have led to denial of service (bsc#1162629).
• CVE-2020-7060: Fixed a global buffer overflow in mbfl_filt_conv_big5_wchar which may have led to memory corruption (bsc#1162632).

This update for php53 fixes the following issues:

Security issues fixed:

• CVE-2020-7059: Fixed an out-of-bounds read in php_strip_tags_ex (bsc#1162629).
• CVE-2019-11045: Fixed an issue with the PHP DirectoryIterator class that accepts filenames with embedded \0 bytes (bsc#1159923).
• CVE-2019-11046: Fixed an out-of-bounds read in bc_shift_addsub (bsc#1159924).
• CVE-2019-11047: Fixed an information disclosure in exif_read_data (bsc#1159922).
• CVE-2019-11050: Fixed a buffer over-read in the EXIF extension (bsc#1159927).
• CVE-2019-20433: Fixed a buffer over-read when processing strings ending with a single '\0' byte with ucs-2 and ucs-4 encoding (bsc#1161982).

This update for php7 fixes the following issues:

• Version update to 7.2.34 [jsc#SLE-23639]

• CVE-2022-37454: Fixed SHA-3 buffer overflow (bsc#1204577).

• Fix integer overflow in PHP_SHA3##bits (bsc#1204577#c26).

It was discovered that PHP incorrectly handled certain scripts. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM and Ubuntu 16.04 LTS. (CVE-2015-9253)

It was discovered that PHP incorrectly handled certain inputs. An attacker could possibly use this issue to expose sensitive information. (CVE-2020-7059)

It was discovered that PHP incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 19.10. (CVE-2020-7060)