A PHP security update has been released for Ubuntu Linux 16.04 ESM.
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Ubuntu Security Notice USN-5905-1
March 02, 2023
php7.0 vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 16.04 ESM
Summary:
Several security issues were fixed in PHP.
Software Description:
- php7.0: HTML-embedded scripting language interpreter
Details:
It was discovered that PHP incorrectly handled certain gzip files.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2022-31628)
It was discovered that PHP incorrectly handled certain cookies.
An attacker could possibly use this issue to compromise data integrity.
(CVE-2022-31629)
It was discovered that PHP incorrectly handled certain inputs.
An attacker could possibly use this issue to cause a crash or
execute arbitrary code. (CVE-2022-31631)
It was discovered that PHP incorrectly handled resolving long paths. A
remote attacker could possibly use this issue to obtain or modify sensitive
information. (CVE-2023-0568)
It was discovered that PHP incorrectly handled a large number of field and file
parts in HTTP form uploads. A remote attacker could possibly use this issue to
cause PHP to consume resources, leading to a denial of service. (CVE-2023-0662)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 16.04 ESM:
libapache2-mod-php7.0 7.0.33-0ubuntu0.16.04.16+esm5
php7.0 7.0.33-0ubuntu0.16.04.16+esm5
php7.0-cgi 7.0.33-0ubuntu0.16.04.16+esm5
php7.0-cli 7.0.33-0ubuntu0.16.04.16+esm5
php7.0-fpm 7.0.33-0ubuntu0.16.04.16+esm5
php7.0-sqlite3 7.0.33-0ubuntu0.16.04.16+esm5
php7.0-zip 7.0.33-0ubuntu0.16.04.16+esm5
In general, a standard system update will make all the necessary changes.
References:
https://ubuntu.com/security/notices/USN-5905-1
CVE-2022-31628, CVE-2022-31629, CVE-2022-31631, CVE-2023-0568,
CVE-2023-0662
