SUSE update for php7

1) Stack-based buffer overflow

EUVDB-ID: #VU54566

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21704

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

Multiple boundary errors exists within firebird_info_cb(), firebird_handle_doer(), firebird_stmt_execute(), and firebird_fetch_blob() function. A remote attacker can pass specially crafted input to the application, trigger a stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update the affected package php7 to the latest version.

Vulnerable software versions

SUSE Manager Proxy: 4.0

SUSE Manager Retail Branch Server: 4.0

SUSE Manager Server: 4.0

SUSE Linux Enterprise Server for SAP: 15 - 15-SP1

SUSE Linux Enterprise High Performance Computing: 15-ESPOS - 15-SP1-LTSS

SUSE Enterprise Storage: 6

SUSE CaaS Platform: 4.0

SUSE Linux Enterprise Server: 15-LTSS - 15-SP1-LTSS

php7-pear-Archive_Tar: before 7.2.5-4.79.1

php7-pear: before 7.2.5-4.79.1

php7-zlib-debuginfo: before 7.2.5-4.79.1

php7-zlib: before 7.2.5-4.79.1

php7-zip-debuginfo: before 7.2.5-4.79.1

php7-zip: before 7.2.5-4.79.1

php7-xsl-debuginfo: before 7.2.5-4.79.1

php7-xsl: before 7.2.5-4.79.1

php7-xmlwriter-debuginfo: before 7.2.5-4.79.1

php7-xmlwriter: before 7.2.5-4.79.1

php7-xmlrpc-debuginfo: before 7.2.5-4.79.1

php7-xmlrpc: before 7.2.5-4.79.1

php7-xmlreader-debuginfo: before 7.2.5-4.79.1

php7-xmlreader: before 7.2.5-4.79.1

php7-wddx-debuginfo: before 7.2.5-4.79.1

php7-wddx: before 7.2.5-4.79.1

php7-tokenizer-debuginfo: before 7.2.5-4.79.1

php7-tokenizer: before 7.2.5-4.79.1

php7-tidy-debuginfo: before 7.2.5-4.79.1

php7-tidy: before 7.2.5-4.79.1

php7-sysvshm-debuginfo: before 7.2.5-4.79.1

php7-sysvshm: before 7.2.5-4.79.1

php7-sysvsem-debuginfo: before 7.2.5-4.79.1

php7-sysvsem: before 7.2.5-4.79.1

php7-sysvmsg-debuginfo: before 7.2.5-4.79.1

php7-sysvmsg: before 7.2.5-4.79.1

php7-sqlite-debuginfo: before 7.2.5-4.79.1

php7-sqlite: before 7.2.5-4.79.1

php7-sodium-debuginfo: before 7.2.5-4.79.1

php7-sodium: before 7.2.5-4.79.1

php7-sockets-debuginfo: before 7.2.5-4.79.1

php7-sockets: before 7.2.5-4.79.1

php7-soap-debuginfo: before 7.2.5-4.79.1

php7-soap: before 7.2.5-4.79.1

php7-snmp-debuginfo: before 7.2.5-4.79.1

php7-snmp: before 7.2.5-4.79.1

php7-shmop-debuginfo: before 7.2.5-4.79.1

php7-shmop: before 7.2.5-4.79.1

php7-readline-debuginfo: before 7.2.5-4.79.1

php7-readline: before 7.2.5-4.79.1

php7-posix-debuginfo: before 7.2.5-4.79.1

php7-posix: before 7.2.5-4.79.1

php7-phar-debuginfo: before 7.2.5-4.79.1

php7-phar: before 7.2.5-4.79.1

php7-pgsql-debuginfo: before 7.2.5-4.79.1

php7-pgsql: before 7.2.5-4.79.1

php7-pdo-debuginfo: before 7.2.5-4.79.1

php7-pdo: before 7.2.5-4.79.1

php7-pcntl-debuginfo: before 7.2.5-4.79.1

php7-pcntl: before 7.2.5-4.79.1

php7-openssl-debuginfo: before 7.2.5-4.79.1

php7-openssl: before 7.2.5-4.79.1

php7-opcache-debuginfo: before 7.2.5-4.79.1

php7-opcache: before 7.2.5-4.79.1

php7-odbc-debuginfo: before 7.2.5-4.79.1

php7-odbc: before 7.2.5-4.79.1

php7-mysql-debuginfo: before 7.2.5-4.79.1

php7-mysql: before 7.2.5-4.79.1

php7-mbstring-debuginfo: before 7.2.5-4.79.1

php7-mbstring: before 7.2.5-4.79.1

php7-ldap-debuginfo: before 7.2.5-4.79.1

php7-ldap: before 7.2.5-4.79.1

php7-json-debuginfo: before 7.2.5-4.79.1

php7-json: before 7.2.5-4.79.1

php7-intl-debuginfo: before 7.2.5-4.79.1

php7-intl: before 7.2.5-4.79.1

php7-iconv-debuginfo: before 7.2.5-4.79.1

php7-iconv: before 7.2.5-4.79.1

php7-gmp-debuginfo: before 7.2.5-4.79.1

php7-gmp: before 7.2.5-4.79.1

php7-gettext-debuginfo: before 7.2.5-4.79.1

php7-gettext: before 7.2.5-4.79.1

php7-gd-debuginfo: before 7.2.5-4.79.1

php7-gd: before 7.2.5-4.79.1

php7-ftp-debuginfo: before 7.2.5-4.79.1

php7-ftp: before 7.2.5-4.79.1

php7-fpm-debuginfo: before 7.2.5-4.79.1

php7-fpm: before 7.2.5-4.79.1

php7-fileinfo-debuginfo: before 7.2.5-4.79.1

php7-fileinfo: before 7.2.5-4.79.1

php7-fastcgi-debuginfo: before 7.2.5-4.79.1

php7-fastcgi: before 7.2.5-4.79.1

php7-exif-debuginfo: before 7.2.5-4.79.1

php7-exif: before 7.2.5-4.79.1

php7-enchant-debuginfo: before 7.2.5-4.79.1

php7-enchant: before 7.2.5-4.79.1

php7-dom-debuginfo: before 7.2.5-4.79.1

php7-dom: before 7.2.5-4.79.1

php7-devel: before 7.2.5-4.79.1

php7-debugsource: before 7.2.5-4.79.1

php7-debuginfo: before 7.2.5-4.79.1

php7-dba-debuginfo: before 7.2.5-4.79.1

php7-dba: before 7.2.5-4.79.1

php7-curl-debuginfo: before 7.2.5-4.79.1

php7-curl: before 7.2.5-4.79.1

php7-ctype-debuginfo: before 7.2.5-4.79.1

php7-ctype: before 7.2.5-4.79.1

php7-calendar-debuginfo: before 7.2.5-4.79.1

php7-calendar: before 7.2.5-4.79.1

php7-bz2-debuginfo: before 7.2.5-4.79.1

php7-bz2: before 7.2.5-4.79.1

php7-bcmath-debuginfo: before 7.2.5-4.79.1

php7-bcmath: before 7.2.5-4.79.1

php7: before 7.2.5-4.79.1

apache2-mod_php7-debuginfo: before 7.2.5-4.79.1

apache2-mod_php7: before 7.2.5-4.79.1

External links

http://www.suse.com/support/update/announcement/2021/suse-su-20212795-1/

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.