Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU57656
Risk: Low
CVSSv3.1: 7.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2021-21703
CWE-ID:
CWE-787 - Out-of-bounds write
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists in the way PHP handles shared memory access, when using PHP FPM SAPI with main FPM daemon process running as root and child worker processes running as lower-privileged users. A child process can access shared memory with the main process and write to it. As a result, it is possible to cause the root process to conduct invalid memory reads and writes with root privileges. A local user can trigger an out-of-bounds write error and execute arbitrary code on the system with root privileges.
Update the affected package Recommended update for php7 to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Web Scripting: 15-SP2 - 15-SP3
SUSE Linux Enterprise Module for Packagehub Subpackages: 15-SP2 - 15-SP3
php7-embed-debuginfo: before 7.4.6-3.29.1
php7-embed: before 7.4.6-3.29.1
php7-zlib-debuginfo: before 7.4.6-3.29.1
php7-zlib: before 7.4.6-3.29.1
php7-zip-debuginfo: before 7.4.6-3.29.1
php7-zip: before 7.4.6-3.29.1
php7-xsl-debuginfo: before 7.4.6-3.29.1
php7-xsl: before 7.4.6-3.29.1
php7-xmlwriter-debuginfo: before 7.4.6-3.29.1
php7-xmlwriter: before 7.4.6-3.29.1
php7-xmlrpc-debuginfo: before 7.4.6-3.29.1
php7-xmlrpc: before 7.4.6-3.29.1
php7-xmlreader-debuginfo: before 7.4.6-3.29.1
php7-xmlreader: before 7.4.6-3.29.1
php7-tokenizer-debuginfo: before 7.4.6-3.29.1
php7-tokenizer: before 7.4.6-3.29.1
php7-tidy-debuginfo: before 7.4.6-3.29.1
php7-tidy: before 7.4.6-3.29.1
php7-sysvshm-debuginfo: before 7.4.6-3.29.1
php7-sysvshm: before 7.4.6-3.29.1
php7-sysvsem-debuginfo: before 7.4.6-3.29.1
php7-sysvsem: before 7.4.6-3.29.1
php7-sysvmsg-debuginfo: before 7.4.6-3.29.1
php7-sysvmsg: before 7.4.6-3.29.1
php7-sqlite-debuginfo: before 7.4.6-3.29.1
php7-sqlite: before 7.4.6-3.29.1
php7-sodium-debuginfo: before 7.4.6-3.29.1
php7-sodium: before 7.4.6-3.29.1
php7-sockets-debuginfo: before 7.4.6-3.29.1
php7-sockets: before 7.4.6-3.29.1
php7-soap-debuginfo: before 7.4.6-3.29.1
php7-soap: before 7.4.6-3.29.1
php7-snmp-debuginfo: before 7.4.6-3.29.1
php7-snmp: before 7.4.6-3.29.1
php7-shmop-debuginfo: before 7.4.6-3.29.1
php7-shmop: before 7.4.6-3.29.1
php7-readline-debuginfo: before 7.4.6-3.29.1
php7-readline: before 7.4.6-3.29.1
php7-posix-debuginfo: before 7.4.6-3.29.1
php7-posix: before 7.4.6-3.29.1
php7-phar-debuginfo: before 7.4.6-3.29.1
php7-phar: before 7.4.6-3.29.1
php7-pgsql-debuginfo: before 7.4.6-3.29.1
php7-pgsql: before 7.4.6-3.29.1
php7-pdo-debuginfo: before 7.4.6-3.29.1
php7-pdo: before 7.4.6-3.29.1
php7-pcntl-debuginfo: before 7.4.6-3.29.1
php7-pcntl: before 7.4.6-3.29.1
php7-openssl-debuginfo: before 7.4.6-3.29.1
php7-openssl: before 7.4.6-3.29.1
php7-opcache-debuginfo: before 7.4.6-3.29.1
php7-opcache: before 7.4.6-3.29.1
php7-odbc-debuginfo: before 7.4.6-3.29.1
php7-odbc: before 7.4.6-3.29.1
php7-mysql-debuginfo: before 7.4.6-3.29.1
php7-mysql: before 7.4.6-3.29.1
php7-mbstring-debuginfo: before 7.4.6-3.29.1
php7-mbstring: before 7.4.6-3.29.1
php7-ldap-debuginfo: before 7.4.6-3.29.1
php7-ldap: before 7.4.6-3.29.1
php7-json-debuginfo: before 7.4.6-3.29.1
php7-json: before 7.4.6-3.29.1
php7-intl-debuginfo: before 7.4.6-3.29.1
php7-intl: before 7.4.6-3.29.1
php7-iconv-debuginfo: before 7.4.6-3.29.1
php7-iconv: before 7.4.6-3.29.1
php7-gmp-debuginfo: before 7.4.6-3.29.1
php7-gmp: before 7.4.6-3.29.1
php7-gettext-debuginfo: before 7.4.6-3.29.1
php7-gettext: before 7.4.6-3.29.1
php7-gd-debuginfo: before 7.4.6-3.29.1
php7-gd: before 7.4.6-3.29.1
php7-ftp-debuginfo: before 7.4.6-3.29.1
php7-ftp: before 7.4.6-3.29.1
php7-fpm-debuginfo: before 7.4.6-3.29.1
php7-fpm: before 7.4.6-3.29.1
php7-fileinfo-debuginfo: before 7.4.6-3.29.1
php7-fileinfo: before 7.4.6-3.29.1
php7-fastcgi-debuginfo: before 7.4.6-3.29.1
php7-fastcgi: before 7.4.6-3.29.1
php7-exif-debuginfo: before 7.4.6-3.29.1
php7-exif: before 7.4.6-3.29.1
php7-enchant-debuginfo: before 7.4.6-3.29.1
php7-enchant: before 7.4.6-3.29.1
php7-dom-debuginfo: before 7.4.6-3.29.1
php7-dom: before 7.4.6-3.29.1
php7-devel: before 7.4.6-3.29.1
php7-debugsource: before 7.4.6-3.29.1
php7-debuginfo: before 7.4.6-3.29.1
php7-dba-debuginfo: before 7.4.6-3.29.1
php7-dba: before 7.4.6-3.29.1
php7-curl-debuginfo: before 7.4.6-3.29.1
php7-curl: before 7.4.6-3.29.1
php7-ctype-debuginfo: before 7.4.6-3.29.1
php7-ctype: before 7.4.6-3.29.1
php7-calendar-debuginfo: before 7.4.6-3.29.1
php7-calendar: before 7.4.6-3.29.1
php7-bz2-debuginfo: before 7.4.6-3.29.1
php7-bz2: before 7.4.6-3.29.1
php7-bcmath-debuginfo: before 7.4.6-3.29.1
php7-bcmath: before 7.4.6-3.29.1
php7: before 7.4.6-3.29.1
apache2-mod_php7-debuginfo: before 7.4.6-3.29.1
apache2-mod_php7: before 7.4.6-3.29.1
External linkshttp://www.suse.com/support/update/announcement/2021/suse-su-20213943-1/
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
EUVDB-ID: #VU58331
Risk: Medium
CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-21707
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to inject arbitrary XML code.
The vulnerability exists due to insufficient validation of user-supplied input within the simplexml_load_file() PHP function when processing NULL byte character (e.g. %00). A remote attacker can pass specially crafted URL to the application and bypass implemented security restrictions.
MitigationUpdate the affected package Recommended update for php7 to the latest version.
Vulnerable software versionsSUSE Linux Enterprise Module for Web Scripting: 15-SP2 - 15-SP3
SUSE Linux Enterprise Module for Packagehub Subpackages: 15-SP2 - 15-SP3
php7-embed-debuginfo: before 7.4.6-3.29.1
php7-embed: before 7.4.6-3.29.1
php7-zlib-debuginfo: before 7.4.6-3.29.1
php7-zlib: before 7.4.6-3.29.1
php7-zip-debuginfo: before 7.4.6-3.29.1
php7-zip: before 7.4.6-3.29.1
php7-xsl-debuginfo: before 7.4.6-3.29.1
php7-xsl: before 7.4.6-3.29.1
php7-xmlwriter-debuginfo: before 7.4.6-3.29.1
php7-xmlwriter: before 7.4.6-3.29.1
php7-xmlrpc-debuginfo: before 7.4.6-3.29.1
php7-xmlrpc: before 7.4.6-3.29.1
php7-xmlreader-debuginfo: before 7.4.6-3.29.1
php7-xmlreader: before 7.4.6-3.29.1
php7-tokenizer-debuginfo: before 7.4.6-3.29.1
php7-tokenizer: before 7.4.6-3.29.1
php7-tidy-debuginfo: before 7.4.6-3.29.1
php7-tidy: before 7.4.6-3.29.1
php7-sysvshm-debuginfo: before 7.4.6-3.29.1
php7-sysvshm: before 7.4.6-3.29.1
php7-sysvsem-debuginfo: before 7.4.6-3.29.1
php7-sysvsem: before 7.4.6-3.29.1
php7-sysvmsg-debuginfo: before 7.4.6-3.29.1
php7-sysvmsg: before 7.4.6-3.29.1
php7-sqlite-debuginfo: before 7.4.6-3.29.1
php7-sqlite: before 7.4.6-3.29.1
php7-sodium-debuginfo: before 7.4.6-3.29.1
php7-sodium: before 7.4.6-3.29.1
php7-sockets-debuginfo: before 7.4.6-3.29.1
php7-sockets: before 7.4.6-3.29.1
php7-soap-debuginfo: before 7.4.6-3.29.1
php7-soap: before 7.4.6-3.29.1
php7-snmp-debuginfo: before 7.4.6-3.29.1
php7-snmp: before 7.4.6-3.29.1
php7-shmop-debuginfo: before 7.4.6-3.29.1
php7-shmop: before 7.4.6-3.29.1
php7-readline-debuginfo: before 7.4.6-3.29.1
php7-readline: before 7.4.6-3.29.1
php7-posix-debuginfo: before 7.4.6-3.29.1
php7-posix: before 7.4.6-3.29.1
php7-phar-debuginfo: before 7.4.6-3.29.1
php7-phar: before 7.4.6-3.29.1
php7-pgsql-debuginfo: before 7.4.6-3.29.1
php7-pgsql: before 7.4.6-3.29.1
php7-pdo-debuginfo: before 7.4.6-3.29.1
php7-pdo: before 7.4.6-3.29.1
php7-pcntl-debuginfo: before 7.4.6-3.29.1
php7-pcntl: before 7.4.6-3.29.1
php7-openssl-debuginfo: before 7.4.6-3.29.1
php7-openssl: before 7.4.6-3.29.1
php7-opcache-debuginfo: before 7.4.6-3.29.1
php7-opcache: before 7.4.6-3.29.1
php7-odbc-debuginfo: before 7.4.6-3.29.1
php7-odbc: before 7.4.6-3.29.1
php7-mysql-debuginfo: before 7.4.6-3.29.1
php7-mysql: before 7.4.6-3.29.1
php7-mbstring-debuginfo: before 7.4.6-3.29.1
php7-mbstring: before 7.4.6-3.29.1
php7-ldap-debuginfo: before 7.4.6-3.29.1
php7-ldap: before 7.4.6-3.29.1
php7-json-debuginfo: before 7.4.6-3.29.1
php7-json: before 7.4.6-3.29.1
php7-intl-debuginfo: before 7.4.6-3.29.1
php7-intl: before 7.4.6-3.29.1
php7-iconv-debuginfo: before 7.4.6-3.29.1
php7-iconv: before 7.4.6-3.29.1
php7-gmp-debuginfo: before 7.4.6-3.29.1
php7-gmp: before 7.4.6-3.29.1
php7-gettext-debuginfo: before 7.4.6-3.29.1
php7-gettext: before 7.4.6-3.29.1
php7-gd-debuginfo: before 7.4.6-3.29.1
php7-gd: before 7.4.6-3.29.1
php7-ftp-debuginfo: before 7.4.6-3.29.1
php7-ftp: before 7.4.6-3.29.1
php7-fpm-debuginfo: before 7.4.6-3.29.1
php7-fpm: before 7.4.6-3.29.1
php7-fileinfo-debuginfo: before 7.4.6-3.29.1
php7-fileinfo: before 7.4.6-3.29.1
php7-fastcgi-debuginfo: before 7.4.6-3.29.1
php7-fastcgi: before 7.4.6-3.29.1
php7-exif-debuginfo: before 7.4.6-3.29.1
php7-exif: before 7.4.6-3.29.1
php7-enchant-debuginfo: before 7.4.6-3.29.1
php7-enchant: before 7.4.6-3.29.1
php7-dom-debuginfo: before 7.4.6-3.29.1
php7-dom: before 7.4.6-3.29.1
php7-devel: before 7.4.6-3.29.1
php7-debugsource: before 7.4.6-3.29.1
php7-debuginfo: before 7.4.6-3.29.1
php7-dba-debuginfo: before 7.4.6-3.29.1
php7-dba: before 7.4.6-3.29.1
php7-curl-debuginfo: before 7.4.6-3.29.1
php7-curl: before 7.4.6-3.29.1
php7-ctype-debuginfo: before 7.4.6-3.29.1
php7-ctype: before 7.4.6-3.29.1
php7-calendar-debuginfo: before 7.4.6-3.29.1
php7-calendar: before 7.4.6-3.29.1
php7-bz2-debuginfo: before 7.4.6-3.29.1
php7-bz2: before 7.4.6-3.29.1
php7-bcmath-debuginfo: before 7.4.6-3.29.1
php7-bcmath: before 7.4.6-3.29.1
php7: before 7.4.6-3.29.1
apache2-mod_php7-debuginfo: before 7.4.6-3.29.1
apache2-mod_php7: before 7.4.6-3.29.1
External linkshttp://www.suse.com/support/update/announcement/2021/suse-su-20213943-1/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.