SUSE update for php53

1) NULL pointer dereference

EUVDB-ID: #VU50403

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21702

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to a NULL pointer dereference error within the SoapClient in PHP. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation

Update the affected package php53 to the latest version.

Vulnerable software versions

SUSE Linux Enterprise Server: 11-SP4-LTSS-EXTREME-CORE

SUSE Linux Enterprise Point of Sale: 11-SP3

SUSE Linux Enterprise Debuginfo: 11-SP3 - 11-SP4

php53-debugsource: before 5.3.17-112.99.2

php53-debuginfo: before 5.3.17-112.99.2

php53-zlib: before 5.3.17-112.99.2

php53-zip: before 5.3.17-112.99.2

php53-xsl: before 5.3.17-112.99.2

php53-xmlwriter: before 5.3.17-112.99.2

php53-xmlrpc: before 5.3.17-112.99.2

php53-xmlreader: before 5.3.17-112.99.2

php53-wddx: before 5.3.17-112.99.2

php53-tokenizer: before 5.3.17-112.99.2

php53-sysvshm: before 5.3.17-112.99.2

php53-sysvsem: before 5.3.17-112.99.2

php53-sysvmsg: before 5.3.17-112.99.2

php53-suhosin: before 5.3.17-112.99.2

php53-soap: before 5.3.17-112.99.2

php53-snmp: before 5.3.17-112.99.2

php53-shmop: before 5.3.17-112.99.2

php53-pspell: before 5.3.17-112.99.2

php53-pgsql: before 5.3.17-112.99.2

php53-pear: before 5.3.17-112.99.2

php53-pdo: before 5.3.17-112.99.2

php53-pcntl: before 5.3.17-112.99.2

php53-openssl: before 5.3.17-112.99.2

php53-odbc: before 5.3.17-112.99.2

php53-mysql: before 5.3.17-112.99.2

php53-mcrypt: before 5.3.17-112.99.2

php53-mbstring: before 5.3.17-112.99.2

php53-ldap: before 5.3.17-112.99.2

php53-json: before 5.3.17-112.99.2

php53-intl: before 5.3.17-112.99.2

php53-iconv: before 5.3.17-112.99.2

php53-gmp: before 5.3.17-112.99.2

php53-gettext: before 5.3.17-112.99.2

php53-gd: before 5.3.17-112.99.2

php53-ftp: before 5.3.17-112.99.2

php53-fileinfo: before 5.3.17-112.99.2

php53-fastcgi: before 5.3.17-112.99.2

php53-exif: before 5.3.17-112.99.2

php53-dom: before 5.3.17-112.99.2

php53-dba: before 5.3.17-112.99.2

php53-curl: before 5.3.17-112.99.2

php53-ctype: before 5.3.17-112.99.2

php53-calendar: before 5.3.17-112.99.2

php53-bz2: before 5.3.17-112.99.2

php53-bcmath: before 5.3.17-112.99.2

php53: before 5.3.17-112.99.2

apache2-mod_php53: before 5.3.17-112.99.2

External links

http://www.suse.com/support/update/announcement/2021/suse-su-202114668-1/

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.