SUSE update for php7

1) Improper input validation

EUVDB-ID: #VU10335

Risk: Low

CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-8923

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform denial of service (DoS) attack.

The vulnerability exists due to insufficient input validation in zend_string_extend() function in Zend/zend_string.h when leveraging a script's use of ".=" with a long. The application does not prevent changes to string objects that can result in a negative length. A remote attacker can pass an overly long string to script, which uses ".=" operand on the supplied data and trigger application crash.

Mitigation

Update the affected package php7 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 15-SP3-LTSS

SUSE Linux Enterprise High Performance Computing: 15-SP3-LTSS

SUSE Linux Enterprise Module for Web Scripting: 15-SP3

SUSE Manager Server: 4.2

SUSE Manager Proxy: 4.2

SUSE Linux Enterprise Server for SAP Applications: 15-SP3

SUSE Linux Enterprise Module for Packagehub Subpackages: 15-SP3

php7-embed-debuginfo: before 7.4.6-3.32.1

php7-embed: before 7.4.6-3.32.1

php7-zlib-debuginfo: before 7.4.6-3.32.1

php7-zlib: before 7.4.6-3.32.1

php7-zip-debuginfo: before 7.4.6-3.32.1

php7-zip: before 7.4.6-3.32.1

php7-xsl-debuginfo: before 7.4.6-3.32.1

php7-xsl: before 7.4.6-3.32.1

php7-xmlwriter-debuginfo: before 7.4.6-3.32.1

php7-xmlwriter: before 7.4.6-3.32.1

php7-xmlrpc-debuginfo: before 7.4.6-3.32.1

php7-xmlrpc: before 7.4.6-3.32.1

php7-xmlreader-debuginfo: before 7.4.6-3.32.1

php7-xmlreader: before 7.4.6-3.32.1

php7-tokenizer-debuginfo: before 7.4.6-3.32.1

php7-tokenizer: before 7.4.6-3.32.1

php7-tidy-debuginfo: before 7.4.6-3.32.1

php7-tidy: before 7.4.6-3.32.1

php7-sysvshm-debuginfo: before 7.4.6-3.32.1

php7-sysvshm: before 7.4.6-3.32.1

php7-sysvsem-debuginfo: before 7.4.6-3.32.1

php7-sysvsem: before 7.4.6-3.32.1

php7-sysvmsg-debuginfo: before 7.4.6-3.32.1

php7-sysvmsg: before 7.4.6-3.32.1

php7-sqlite-debuginfo: before 7.4.6-3.32.1

php7-sqlite: before 7.4.6-3.32.1

php7-sodium-debuginfo: before 7.4.6-3.32.1

php7-sodium: before 7.4.6-3.32.1

php7-sockets-debuginfo: before 7.4.6-3.32.1

php7-sockets: before 7.4.6-3.32.1

php7-soap-debuginfo: before 7.4.6-3.32.1

php7-soap: before 7.4.6-3.32.1

php7-snmp-debuginfo: before 7.4.6-3.32.1

php7-snmp: before 7.4.6-3.32.1

php7-shmop-debuginfo: before 7.4.6-3.32.1

php7-shmop: before 7.4.6-3.32.1

php7-readline-debuginfo: before 7.4.6-3.32.1

php7-readline: before 7.4.6-3.32.1

php7-posix-debuginfo: before 7.4.6-3.32.1

php7-posix: before 7.4.6-3.32.1

php7-phar-debuginfo: before 7.4.6-3.32.1

php7-phar: before 7.4.6-3.32.1

php7-pgsql-debuginfo: before 7.4.6-3.32.1

php7-pgsql: before 7.4.6-3.32.1

php7-pdo-debuginfo: before 7.4.6-3.32.1

php7-pdo: before 7.4.6-3.32.1

php7-pcntl-debuginfo: before 7.4.6-3.32.1

php7-pcntl: before 7.4.6-3.32.1

php7-openssl-debuginfo: before 7.4.6-3.32.1

php7-openssl: before 7.4.6-3.32.1

php7-opcache-debuginfo: before 7.4.6-3.32.1

php7-opcache: before 7.4.6-3.32.1

php7-odbc-debuginfo: before 7.4.6-3.32.1

php7-odbc: before 7.4.6-3.32.1

php7-mysql-debuginfo: before 7.4.6-3.32.1

php7-mysql: before 7.4.6-3.32.1

php7-mbstring-debuginfo: before 7.4.6-3.32.1

php7-mbstring: before 7.4.6-3.32.1

php7-ldap-debuginfo: before 7.4.6-3.32.1

php7-ldap: before 7.4.6-3.32.1

php7-json-debuginfo: before 7.4.6-3.32.1

php7-json: before 7.4.6-3.32.1

php7-intl-debuginfo: before 7.4.6-3.32.1

php7-intl: before 7.4.6-3.32.1

php7-iconv-debuginfo: before 7.4.6-3.32.1

php7-iconv: before 7.4.6-3.32.1

php7-gmp-debuginfo: before 7.4.6-3.32.1

php7-gmp: before 7.4.6-3.32.1

php7-gettext-debuginfo: before 7.4.6-3.32.1

php7-gettext: before 7.4.6-3.32.1

php7-gd-debuginfo: before 7.4.6-3.32.1

php7-gd: before 7.4.6-3.32.1

php7-ftp-debuginfo: before 7.4.6-3.32.1

php7-ftp: before 7.4.6-3.32.1

php7-fpm-debuginfo: before 7.4.6-3.32.1

php7-fpm: before 7.4.6-3.32.1

php7-fileinfo-debuginfo: before 7.4.6-3.32.1

php7-fileinfo: before 7.4.6-3.32.1

php7-fastcgi-debuginfo: before 7.4.6-3.32.1

php7-fastcgi: before 7.4.6-3.32.1

php7-exif-debuginfo: before 7.4.6-3.32.1

php7-exif: before 7.4.6-3.32.1

php7-enchant-debuginfo: before 7.4.6-3.32.1

php7-enchant: before 7.4.6-3.32.1

php7-dom-debuginfo: before 7.4.6-3.32.1

php7-dom: before 7.4.6-3.32.1

php7-devel: before 7.4.6-3.32.1

php7-debugsource: before 7.4.6-3.32.1

php7-debuginfo: before 7.4.6-3.32.1

php7-dba-debuginfo: before 7.4.6-3.32.1

php7-dba: before 7.4.6-3.32.1

php7-curl-debuginfo: before 7.4.6-3.32.1

php7-curl: before 7.4.6-3.32.1

php7-ctype-debuginfo: before 7.4.6-3.32.1

php7-ctype: before 7.4.6-3.32.1

php7-calendar-debuginfo: before 7.4.6-3.32.1

php7-calendar: before 7.4.6-3.32.1

php7-bz2-debuginfo: before 7.4.6-3.32.1

php7-bz2: before 7.4.6-3.32.1

php7-bcmath-debuginfo: before 7.4.6-3.32.1

php7-bcmath: before 7.4.6-3.32.1

php7: before 7.4.6-3.32.1

apache2-mod_php7-debuginfo: before 7.4.6-3.32.1

apache2-mod_php7: before 7.4.6-3.32.1

External links

http://www.suse.com/support/update/announcement/2022/suse-su-20220699-1/

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.