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CVE-2015-9253

Status Candidate

Overview

An issue was discovered in PHP 7.3.x before 7.3.0alpha3, 7.2.x before 7.2.8, and before 7.1.20. The php-fpm master process restarts a child process in an endless loop when using program execution functions (e.g., passthru, exec, shell_exec, or system) with a non-blocking STDIN stream, causing this master process to consume 100% of the CPU, and consume disk space with a large volume of error logs, as demonstrated by an attack by a customer of a shared-hosting facility.

Related Files

Ubuntu Security Notice USN-5300-1
Posted Feb 23, 2022
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 5300-1 - It was discovered that PHP incorrectly handled certain scripts. An attacker could possibly use this issue to cause a denial of service. It was discovered that PHP incorrectly handled certain inputs. An attacker could possibly use this issue to cause a denial of service, or possibly obtain sensitive information. It was discovered that PHP incorrectly handled certain scripts with XML parsing functions. An attacker could possibly use this issue to obtain sensitive information.

tags | advisory, denial of service, php
systems | linux, ubuntu
advisories | CVE-2015-9253, CVE-2017-9119, CVE-2017-9120, CVE-2021-21707
SHA-256 | a3c43189a77d959782469e503170048c773cfe62638b7e5096d7604ac94e195c
Ubuntu Security Notice USN-4279-2
Posted Feb 20, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4279-2 - USN-4279-1 fixed vulnerabilities in PHP. The updated packages caused a regression. This update fixes the problem. It was discovered that PHP incorrectly handled certain scripts. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM and Ubuntu 16.04 LTS. It was discovered that PHP incorrectly handled certain inputs. An attacker could possibly use this issue to expose sensitive information. It was discovered that PHP incorrectly handled certain inputs. An attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 14.04 ESM, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 19.10. Various other issues were also addressed.

tags | advisory, denial of service, arbitrary, php, vulnerability
systems | linux, ubuntu
advisories | CVE-2015-9253, CVE-2020-7059, CVE-2020-7060
SHA-256 | bf559775f614f7fb96bbd6401e194bbc53db3c87a22fe2b28e1265df3af4fd67
Ubuntu Security Notice USN-4279-1
Posted Feb 18, 2020
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4279-1 - It was discovered that PHP incorrectly handled certain scripts. An attacker could possibly use this issue to cause a denial of service. This issue only affected Ubuntu 12.04 ESM, Ubuntu 14.04 ESM and Ubuntu 16.04 LTS. It was discovered that PHP incorrectly handled certain inputs. An attacker could possibly use this issue to expose sensitive information. Various other issues were also addressed.

tags | advisory, denial of service, php
systems | linux, ubuntu
advisories | CVE-2015-9253, CVE-2020-7059, CVE-2020-7060
SHA-256 | 35c44b2639f51e3d5109181fec1017d9dad7dc903a468c990166ee3dc77f03da
Ubuntu Security Notice USN-3766-1
Posted Sep 19, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3766-1 - It was discovered that PHP incorrectly handled restarting certain child processes when php-fpm is used. A remote attacker could possibly use this issue to cause a denial of service. This issue was only addressed in Ubuntu 18.04 LTS. It was discovered that PHP incorrectly handled certain exif tags in JPEG images. A remote attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. Various other issues were also addressed.

tags | advisory, remote, denial of service, php
systems | linux, ubuntu
advisories | CVE-2015-9253
SHA-256 | a5c456a29b486c81739117fc6446669b41d6f3a191130112d47f694c7c58a599
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