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CVE-2017-18205

Status Candidate

Overview

In builtin.c in zsh before 5.4, when sh compatibility mode is used, there is a NULL pointer dereference during processing of the cd command with no argument if HOME is not set.

Related Files

Slackware Security Advisory - zsh Updates
Posted Jan 14, 2019
Authored by Slackware Security Team | Site slackware.com

Slackware Security Advisory - New zsh packages are available for Slackware 14.0, 14.1, and 14.2 to fix security issues.

tags | advisory
systems | linux, slackware
advisories | CVE-2017-18205, CVE-2017-18206, CVE-2018-1071, CVE-2018-1083, CVE-2018-1100, CVE-2018-7548, CVE-2018-7549
MD5 | 002e6a9a93373c1f12e71b5f2b2ead7c
Red Hat Security Advisory 2018-3073-01
Posted Oct 31, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-3073-01 - The zsh shell is a command interpreter usable as an interactive login shell and as a shell script command processor. Zsh resembles the ksh shell, but includes many enhancements. Zsh supports command-line editing, built-in spelling correction, programmable command completion, shell functions, a history mechanism, and more. Issues addressed include buffer overflow and code execution vulnerabilities.

tags | advisory, overflow, shell, vulnerability, code execution
systems | linux, redhat
advisories | CVE-2014-10071, CVE-2014-10072, CVE-2017-18205, CVE-2017-18206, CVE-2018-1071, CVE-2018-1083, CVE-2018-1100, CVE-2018-7549
MD5 | 2b606b1995f31012262e1e16c496dc3d
Gentoo Linux Security Advisory 201805-10
Posted May 26, 2018
Authored by Gentoo | Site security.gentoo.org

Gentoo Linux Security Advisory 201805-10 - Multiple vulnerabilities have been found in Zsh, the worst of which could allow local attackers to execute arbitrary code. Versions less than 5.5 are affected.

tags | advisory, arbitrary, local, vulnerability
systems | linux, gentoo
advisories | CVE-2017-18205, CVE-2017-18206, CVE-2018-1071, CVE-2018-1083, CVE-2018-1100, CVE-2018-7548, CVE-2018-7549
MD5 | 54ba950c21714a4e2cb2d0c8b4983b27
Ubuntu Security Notice USN-3593-1
Posted Mar 8, 2018
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3593-1 - It was discovered that Zsh incorrectly handled certain environment variables. An attacker could possibly use this issue to gain privileged access to the system. This issue only affected Ubuntu 14.04 LTS. It was discovered that Zsh incorrectly handled certain inputs. An attacker could possibly use this to execute arbitrary code. This issue only affected Ubuntu 14.04 LTS. Various other issues were also addressed.

tags | advisory, arbitrary
systems | linux, ubuntu
advisories | CVE-2014-10070, CVE-2014-10071, CVE-2014-10072, CVE-2016-10714, CVE-2017-18205, CVE-2017-18206, CVE-2018-7548, CVE-2018-7549
MD5 | b62f97e56b4f341636c084ad6eaa13f5
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