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CVE-2021-20270

Status Candidate

Overview

An infinite loop in SMLLexer in Pygments versions 1.5 to 2.7.3 may lead to denial of service when performing syntax highlighting of a Standard ML (SML) source file, as demonstrated by input that only contains the "exception" keyword.

Related Files

Ubuntu Security Notice USN-4885-1
Posted Mar 22, 2021
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 4885-1 - It was discovered that Pygments incorrectly handled parsing SML files. If a user or automated system were tricked into parsing a specially crafted SML file, a remote attacker could cause Pygments to hang, resulting in a denial of service.

tags | advisory, remote, denial of service
systems | linux, ubuntu
advisories | CVE-2021-20270
MD5 | a3a85071b4f559e38a297f2f2c2cd26b
Red Hat Security Advisory 2021-0781-01
Posted Mar 9, 2021
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2021-0781-01 - Red Hat Ansible Automation Platform integrates Red Hat's automation suite consisting of Red Hat Ansible Tower, Red Hat Ansible Engine, Automation Hub and use-case specific capabilities for Microsoft Windows, network, security, and more, along with Software-as-a-Service -based capabilities and features for organization-wide effectiveness. This update fixes various bugs and adds enhancements. Documentation for these changes is available from the Release Notes document linked to in the References section. Issues addressed include code execution, denial of service, and traversal vulnerabilities.

tags | advisory, denial of service, vulnerability, code execution
systems | linux, redhat, windows
advisories | CVE-2020-15366, CVE-2020-7789, CVE-2021-20270, CVE-2021-3281
MD5 | 7ba66622f6268d926f6a082440c05ad4
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