Out-of-bounds Write Affecting php7-zlib package, versions <7.4.6-3.32.1
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Test your applications- Snyk ID SNYK-SLES153-PHP7ZLIB-2641958
- published 14 Apr 2022
- disclosed 3 Mar 2022
Introduced: 3 Mar 2022
CVE-2017-8923 Open this link in a new tabHow to fix?
Upgrade SLES:15.3 php7-zlib to version 7.4.6-3.32.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream php7-zlib package and not the php7-zlib package as distributed by SLES.
See How to fix? for SLES:15.3 relevant fixed versions and status.
The zend_string_extend function in Zend/zend_string.h in PHP through 7.1.5 does not prevent changes to string objects that result in a negative length, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact by leveraging a script's use of .= with a long string.