Vulnerabilities > CVE-2018-1071 - Stack-based Buffer Overflow vulnerability in multiple products
Attack vector
LOCAL Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
NONE Availability impact
HIGH Summary
zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd() function. A local attacker could exploit this to cause a denial of service.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Nessus
NASL family Fedora Local Security Checks NASL id FEDORA_2018-A5E9A619F6.NASL description update to latest upstream release, which fixes the following vulnerabilities : - CVE-2018-1100 - stack-based buffer overflow in utils.c:checkmailpath() - CVE-2018-1083 - stack-based buffer overflow in compctl.c:gen_matches_files() - CVE-2018-1071 - stack-based buffer overflow in exec.c:hashcmd() Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2019-01-03 plugin id 120679 published 2019-01-03 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/120679 title Fedora 28 : zsh (2018-a5e9a619f6) NASL family Fedora Local Security Checks NASL id FEDORA_2018-AC1D9C2777.NASL description - fix stack-based buffer overflow in utils.c:checkmailpath() (CVE-2018-1100) - fix stack-based buffer overflow in gen_matches_files() (CVE-2018-1083) - fix stack-based buffer overflow in exec.c:hashcmd() (CVE-2018-1071) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-05 modified 2018-05-07 plugin id 109591 published 2018-05-07 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109591 title Fedora 27 : zsh (2018-ac1d9c2777) NASL family SuSE Local Security Checks NASL id OPENSUSE-2018-1094.NASL description This update for zsh to version 5.6.2 fixes the following issues : These security issues were fixed : - CVE-2018-0502: The beginning of a #! script file was mishandled, potentially leading to an execve call to a program named on the second line (bsc#1107296) - CVE-2018-13259: Shebang lines exceeding 64 characters were truncated, potentially leading to an execve call to a program name that is a substring of the intended one (bsc#1107294) - CVE-2018-1100: Prevent stack-based buffer overflow in the utils.c:checkmailpath function that allowed local attackers to execute arbitrary code in the context of another user (bsc#1089030). - CVE-2018-1071: Prevent stack-based buffer overflow in the exec.c:hashcmd() function that allowed local attackers to cause a denial of service (bsc#1084656). - CVE-2018-1083: Prevent buffer overflow in the shell autocomplete functionality that allowed local unprivileged users to create a specially crafted directory path which lead to code execution in the context of the user who tries to use autocomplete to traverse the mentioned path (bsc#1087026). - Disallow evaluation of the initial values of integer variables imported from the environment These non-security issues were fixed : - Fixed that the signal SIGWINCH was being ignored when zsh is not in the foreground. - Fixed two regressions with pipelines getting backgrounded and emitting the signal SIGTTOU - The effect of the NO_INTERACTIVE_COMMENTS option extends into $(...) and `...` command substitutions when used on the command line. - The last seen 2020-06-05 modified 2018-10-03 plugin id 117898 published 2018-10-03 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/117898 title openSUSE Security Update : zsh (openSUSE-2018-1094) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201805-10.NASL description The remote host is affected by the vulnerability described in GLSA-201805-10 (Zsh: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Zsh. Please review the CVE identifiers referenced below for details. Impact : A local attacker could execute arbitrary code, escalate privileges, or cause a Denial of Service condition. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 110174 published 2018-05-29 reporter This script is Copyright (C) 2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/110174 title GLSA-201805-10 : Zsh: Multiple vulnerabilities NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-1072-1.NASL description This update for zsh fixes the following issues : - CVE-2014-10070: environment variable injection could lead to local privilege escalation (bnc#1082885) - CVE-2014-10071: buffer overflow in exec.c could lead to denial of service. (bnc#1082977) - CVE-2014-10072: buffer overflow In utils.c when scanning very long directory paths for symbolic links. (bnc#1082975) - CVE-2016-10714: In zsh before 5.3, an off-by-one error resulted in undersized buffers that were intended to support PATH_MAX characters. (bnc#1083250) - CVE-2017-18205: In builtin.c when sh compatibility mode is used, a NULL pointer dereference could lead to denial of service (bnc#1082998) - CVE-2018-1071: exec.c:hashcmd() function vulnerability could lead to denial of service. (bnc#1084656) - CVE-2018-1083: Autocomplete vulnerability could lead to privilege escalation. (bnc#1087026) - CVE-2018-7549: In params.c in zsh through 5.4.2, there is a crash during a copy of an empty hash table, as demonstrated by typeset -p. (bnc#1082991) - CVE-2017-18206: buffer overrun in xsymlinks could lead to denial of service (bnc#1083002) - Autocomplete and REPORTTIME broken (bsc#896914) Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 109355 published 2018-04-26 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109355 title SUSE SLED12 / SLES12 Security Update : zsh (SUSE-SU-2018:1072-1) NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2018-1107.NASL description A buffer overflow flaw was found in the zsh shell symbolic link resolver. A local, unprivileged user can create a specially crafted directory path which leads to a buffer overflow in the context of the user trying to do a symbolic link resolution in the aforementioned path. If the user affected is privileged, this leads to privilege escalation.(CVE-2017-18206) A buffer overflow flaw was found in the zsh shell auto-complete functionality. A local, unprivileged user can create a specially crafted directory path which leads to code execution in the context of the user who tries to use auto-complete to traverse the before mentioned path. If the user affected is privileged, this leads to privilege escalation.(CVE-2018-1083) A NULL pointer dereference flaw was found in the code responsible for saving hashtables of the zsh package. An attacker could use this flaw to cause a denial of service by crashing the user shell.(CVE-2018-7549) A NULL pointer dereference flaw was found in the code responsible for the cd builtin command of the zsh package. An attacker could use this flaw to cause a denial of service by crashing the user shell.(CVE-2017-18205) A buffer overflow flaw was found in the zsh shell symbolic link resolver. A local, unprivileged user can create a specially crafted directory path which leads to a buffer overflow in the context of the user trying to do symbolic link resolution in the aforementioned path. An attacker could exploit this vulnerability to cause a denial of service condition on the target.(CVE-2014-10072) A buffer overflow flaw was found in the zsh shell check path functionality. A local, unprivileged user can create a specially crafted message file, which, if used to set a custom last seen 2020-06-10 modified 2018-12-07 plugin id 119466 published 2018-12-07 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119466 title Amazon Linux AMI : zsh (ALAS-2018-1107) NASL family Debian Local Security Checks NASL id DEBIAN_DLA-1335.NASL description Two security vulnerabilities were discovered in the Z shell. CVE-2018-1071 Stack-based buffer overflow in the exec.c:hashcmd() function. A local attacker could exploit this to cause a denial of service. CVE-2018-1083 Buffer overflow in the shell autocomplete functionality. A local unprivileged user can create a specially crafted directory path which leads to code execution in the context of the user who tries to use autocomplete to traverse the before mentioned path. If the user affected is privileged, this leads to privilege escalation. For Debian 7 last seen 2020-03-17 modified 2018-04-02 plugin id 108769 published 2018-04-02 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/108769 title Debian DLA-1335-1 : zsh security update NASL family Scientific Linux Local Security Checks NASL id SL_20181030_ZSH_ON_SL7_X.NASL description Security Fix(es) : - zsh: Stack-based buffer overflow in gen_matches_files() at compctl.c (CVE-2018-1083) - zsh: buffer overflow for very long fds in >& fd syntax (CVE-2014-10071) - zsh: buffer overflow when scanning very long directory paths for symbolic links (CVE-2014-10072) - zsh: NULL dereference in cd in sh compatibility mode under given circumstances (CVE-2017-18205) - zsh: buffer overrun in symlinks (CVE-2017-18206) - zsh: Stack-based buffer overflow in exec.c:hashcmd() (CVE-2018-1071) - zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution (CVE-2018-1100) - zsh: crash on copying empty hash table (CVE-2018-7549) last seen 2020-03-18 modified 2018-11-27 plugin id 119204 published 2018-11-27 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119204 title Scientific Linux Security Update : zsh on SL7.x x86_64 (20181030) NASL family SuSE Local Security Checks NASL id OPENSUSE-2018-399.NASL description This update for zsh fixes the following issues : - CVE-2014-10070: environment variable injection could lead to local privilege escalation (bnc#1082885) - CVE-2014-10071: buffer overflow in exec.c could lead to denial of service. (bnc#1082977) - CVE-2014-10072: buffer overflow In utils.c when scanning very long directory paths for symbolic links. (bnc#1082975) - CVE-2016-10714: In zsh before 5.3, an off-by-one error resulted in undersized buffers that were intended to support PATH_MAX characters. (bnc#1083250) - CVE-2017-18205: In builtin.c when sh compatibility mode is used, a NULL pointer dereference could lead to denial of service (bnc#1082998) - CVE-2018-1071: exec.c:hashcmd() function vulnerability could lead to denial of service. (bnc#1084656) - CVE-2018-1083: Autocomplete vulnerability could lead to privilege escalation. (bnc#1087026) - CVE-2018-7549: In params.c in zsh through 5.4.2, there is a crash during a copy of an empty hash table, as demonstrated by typeset -p. (bnc#1082991) - CVE-2017-18206: buffer overrun in xsymlinks could lead to denial of service (bnc#1083002) - Autocomplete and REPORTTIME broken (bsc#896914) This update was imported from the SUSE:SLE-12:Update update project. last seen 2020-06-05 modified 2018-04-27 plugin id 109384 published 2018-04-27 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109384 title openSUSE Security Update : zsh (openSUSE-2018-399) NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3608-1.NASL description Richard Maciel Costa discovered that Zsh incorrectly handled certain inputs. An attacker could possibly use this to cause a denial of service. (CVE-2018-1071) It was discovered that Zsh incorrectly handled certain files. An attacker could possibly use this to execute arbitrary code. (CVE-2018-1083). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 108706 published 2018-03-29 reporter Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/108706 title Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : zsh vulnerabilities (USN-3608-1) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2235.NASL description According to the versions of the zsh package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd() function. A local attacker could exploit this to cause a denial of service.(CVE-2018-1071) - zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the utils.c:checkmailpath function. A local attacker could exploit this to execute arbitrary code in the context of another user.(CVE-2018-1100) - An issue was discovered in zsh before 5.6. The beginning of a #! script file was mishandled, potentially leading to an execve call to a program named on the second line.(CVE-2018-0502) - An issue was discovered in zsh before 5.6. Shebang lines exceeding 64 characters were truncated, potentially leading to an execve call to a program name that is a substring of the intended one.(CVE-2018-13259) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-08 modified 2019-11-08 plugin id 130697 published 2019-11-08 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/130697 title EulerOS 2.0 SP5 : zsh (EulerOS-SA-2019-2235) NASL family SuSE Local Security Checks NASL id OPENSUSE-2018-699.NASL description This update for zsh to version 5.5 fixes the following issues : Security issues fixed : - CVE-2018-1100: Fixes a buffer overflow in utils.c:checkmailpath() that can lead to local arbitrary code execution (bsc#1089030) - CVE-2018-1071: Fixed a stack-based buffer overflow in exec.c:hashcmd() (bsc#1084656) - CVE-2018-1083: Fixed a stack-based buffer overflow in gen_matches_files() at compctl.c (bsc#1087026) Non-security issues fixed : - The effect of the NO_INTERACTIVE_COMMENTS option extends into $(...) and `...` command substitutions when used on the command line. - The last seen 2020-06-05 modified 2018-07-09 plugin id 110957 published 2018-07-09 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/110957 title openSUSE Security Update : zsh (openSUSE-2018-699) NASL family Amazon Linux Local Security Checks NASL id AL2_ALAS-2018-1013.NASL description 1553531 : Stack-based buffer overflow in exec.c:hashcmd() zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd() function. A local attacker could exploit this to cause a denial of service.(CVE-2018-1071) Stack-based buffer overflow in gen_matches_files() at compctl.c A buffer overflow flaw was found in the zsh shell auto-complete functionality. A local, unprivileged user can create a specially crafted directory path which leads to code execution in the context of the user who tries to use auto-complete to traverse the before mentioned path. If the user affected is privileged, this leads to privilege escalation.(CVE-2018-1083) Buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution A buffer overflow flaw was found in the zsh shell check path functionality. A local, unprivileged user can create a specially crafted message file, which, if used to set a custom last seen 2020-06-01 modified 2020-06-02 plugin id 109692 published 2018-05-11 reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/109692 title Amazon Linux 2 : zsh (ALAS-2018-1013) NASL family NewStart CGSL Local Security Checks NASL id NEWSTART_CGSL_NS-SA-2019-0070_ZSH.NASL description The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has zsh packages installed that are affected by multiple vulnerabilities: - A buffer overflow flaw was found in the zsh shell file descriptor redirection functionality. An attacker could use this flaw to cause a denial of service by crashing the user shell. (CVE-2014-10071) - A NULL pointer dereference flaw was found in the code responsible for the cd builtin command of the zsh package. An attacker could use this flaw to cause a denial of service by crashing the user shell. (CVE-2017-18205) - A buffer overflow flaw was found in the zsh shell check path functionality. A local, unprivileged user can create a specially crafted message file, which, if used to set a custom you have new mail message, leads to code execution in the context of the user who receives the message. If the user affected is privileged, this leads to privilege escalation. (CVE-2018-1100) - A buffer overflow flaw was found in the zsh shell auto- complete functionality. A local, unprivileged user can create a specially crafted directory path which leads to code execution in the context of the user who tries to use auto-complete to traverse the before mentioned path. If the user affected is privileged, this leads to privilege escalation. (CVE-2018-1083) - zsh through version 5.4.2 is vulnerable to a stack-based buffer overflow in the exec.c:hashcmd() function. A local attacker could exploit this to cause a denial of service. (CVE-2018-1071) - A NULL pointer dereference flaw was found in the code responsible for saving hashtables of the zsh package. An attacker could use this flaw to cause a denial of service by crashing the user shell. (CVE-2018-7549) - A buffer overflow flaw was found in the zsh shell symbolic link resolver. A local, unprivileged user can create a specially crafted directory path which leads to a buffer overflow in the context of the user trying to do a symbolic link resolution in the aforementioned path. If the user affected is privileged, this leads to privilege escalation. (CVE-2017-18206) - A buffer overflow flaw was found in the zsh shell symbolic link resolver. A local, unprivileged user can create a specially crafted directory path which leads to a buffer overflow in the context of the user trying to do symbolic link resolution in the aforementioned path. An attacker could exploit this vulnerability to cause a denial of service condition on the target. (CVE-2014-10072) Note that Nessus has not tested for this issue but has instead relied only on the application last seen 2020-06-01 modified 2020-06-02 plugin id 127273 published 2019-08-12 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/127273 title NewStart CGSL CORE 5.04 / MAIN 5.04 : zsh Multiple Vulnerabilities (NS-SA-2019-0070) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2018-3073.NASL description An update for zsh is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 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 (the Korn shell), but includes many enhancements. Zsh supports command-line editing, built-in spelling correction, programmable command completion, shell functions (with autoloading), a history mechanism, and more. Security Fix(es) : * zsh: Stack-based buffer overflow in gen_matches_files() at compctl.c (CVE-2018-1083) * zsh: buffer overflow for very long fds in >& fd syntax (CVE-2014-10071) * zsh: buffer overflow when scanning very long directory paths for symbolic links (CVE-2014-10072) * zsh: NULL dereference in cd in sh compatibility mode under given circumstances (CVE-2017-18205) * zsh: buffer overrun in symlinks (CVE-2017-18206) * zsh: Stack-based buffer overflow in exec.c:hashcmd() (CVE-2018-1071) * zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution (CVE-2018-1100) * zsh: crash on copying empty hash table (CVE-2018-7549) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. The CVE-2018-1083, CVE-2018-1071, and CVE-2018-1100 issues were discovered by Richard Maciel Costa (Red Hat). Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.6 Release Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 118989 published 2018-11-16 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118989 title CentOS 7 : zsh (CESA-2018:3073) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2018-1424.NASL description According to the versions of the zsh package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - zsh: buffer overflow when scanning very long directory paths for symbolic links (CVE-2014-10072) - zsh: Stack-based buffer overflow in exec.c:hashcmd() (CVE-2018-1071) - zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution (CVE-2018-1100) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-06 modified 2018-12-28 plugin id 119913 published 2018-12-28 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119913 title EulerOS 2.0 SP2 : zsh (EulerOS-SA-2018-1424) NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-501.NASL description This update for zsh to version 5.5 fixes the following issues : Security issues fixed : - CVE-2018-1100: Fixes a buffer overflow in utils.c:checkmailpath() that can lead to local arbitrary code execution (bsc#1089030) - CVE-2018-1071: Fixed a stack-based buffer overflow in exec.c:hashcmd() (bsc#1084656) - CVE-2018-1083: Fixed a stack-based buffer overflow in gen_matches_files() at compctl.c (bsc#1087026) Non-security issues fixed : - The effect of the NO_INTERACTIVE_COMMENTS option extends into $(...) and `...` command substitutions when used on the command line. - The last seen 2020-06-01 modified 2020-06-02 plugin id 123207 published 2019-03-27 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/123207 title openSUSE Security Update : zsh (openSUSE-2019-501) NASL family Slackware Local Security Checks NASL id SLACKWARE_SSA_2019-013-01.NASL description New zsh packages are available for Slackware 14.0, 14.1, and 14.2 to fix security issues. last seen 2020-03-17 modified 2019-01-14 plugin id 121145 published 2019-01-14 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/121145 title Slackware 14.0 / 14.1 / 14.2 : zsh (SSA:2019-013-01) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-1874-1.NASL description This update for zsh to version 5.5 fixes the following issues: Security issues fixed : - CVE-2018-1100: Fixes a buffer overflow in utils.c:checkmailpath() that can lead to local arbitrary code execution (bsc#1089030) - CVE-2018-1071: Fixed a stack-based buffer overflow in exec.c:hashcmd() (bsc#1084656) - CVE-2018-1083: Fixed a stack-based buffer overflow in gen_matches_files() at compctl.c (bsc#1087026) Non-security issues fixed : - The effect of the NO_INTERACTIVE_COMMENTS option extends into $(...) and `...` command substitutions when used on the command line. - The last seen 2020-03-21 modified 2019-01-02 plugin id 120028 published 2019-01-02 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/120028 title SUSE SLED15 / SLES15 Security Update : zsh (SUSE-SU-2018:1874-1) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2018-3073.NASL description From Red Hat Security Advisory 2018:3073 : An update for zsh is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 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 (the Korn shell), but includes many enhancements. Zsh supports command-line editing, built-in spelling correction, programmable command completion, shell functions (with autoloading), a history mechanism, and more. Security Fix(es) : * zsh: Stack-based buffer overflow in gen_matches_files() at compctl.c (CVE-2018-1083) * zsh: buffer overflow for very long fds in >& fd syntax (CVE-2014-10071) * zsh: buffer overflow when scanning very long directory paths for symbolic links (CVE-2014-10072) * zsh: NULL dereference in cd in sh compatibility mode under given circumstances (CVE-2017-18205) * zsh: buffer overrun in symlinks (CVE-2017-18206) * zsh: Stack-based buffer overflow in exec.c:hashcmd() (CVE-2018-1071) * zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution (CVE-2018-1100) * zsh: crash on copying empty hash table (CVE-2018-7549) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. The CVE-2018-1083, CVE-2018-1071, and CVE-2018-1100 issues were discovered by Richard Maciel Costa (Red Hat). Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.6 Release Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 118769 published 2018-11-07 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118769 title Oracle Linux 7 : zsh (ELSA-2018-3073) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2018-3073.NASL description An update for zsh is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 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 (the Korn shell), but includes many enhancements. Zsh supports command-line editing, built-in spelling correction, programmable command completion, shell functions (with autoloading), a history mechanism, and more. Security Fix(es) : * zsh: Stack-based buffer overflow in gen_matches_files() at compctl.c (CVE-2018-1083) * zsh: buffer overflow for very long fds in >& fd syntax (CVE-2014-10071) * zsh: buffer overflow when scanning very long directory paths for symbolic links (CVE-2014-10072) * zsh: NULL dereference in cd in sh compatibility mode under given circumstances (CVE-2017-18205) * zsh: buffer overrun in symlinks (CVE-2017-18206) * zsh: Stack-based buffer overflow in exec.c:hashcmd() (CVE-2018-1071) * zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution (CVE-2018-1100) * zsh: crash on copying empty hash table (CVE-2018-7549) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section. The CVE-2018-1083, CVE-2018-1071, and CVE-2018-1100 issues were discovered by Richard Maciel Costa (Red Hat). Additional Changes : For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.6 Release Notes linked from the References section. last seen 2020-06-01 modified 2020-06-02 plugin id 118524 published 2018-10-31 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118524 title RHEL 7 : zsh (RHSA-2018:3073) NASL family Huawei Local Security Checks NASL id EULEROS_SA-2018-1396.NASL description According to the versions of the zsh package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - zsh: buffer overflow for very long fds in i1/4zi1/4+ fd syntax (CVE-2014-10071) - zsh: buffer overflow when scanning very long directory paths for symbolic links (CVE-2014-10072) - zsh: NULL dereference in cd in sh compatibility mode under given circumstances (CVE-2017-18205) - zsh: buffer overrun in symlinks (CVE-2017-18206) - zsh: Stack-based buffer overflow in exec.c:hashcmd() (CVE-2018-1071) - zsh: buffer overflow in utils.c:checkmailpath() can lead to local arbitrary code execution (CVE-2018-1100) - zsh: crash on copying empty hash table (CVE-2018-7549) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-15 modified 2018-12-10 plugin id 119524 published 2018-12-10 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119524 title EulerOS 2.0 SP3 : zsh (EulerOS-SA-2018-1396)
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References
- https://bugzilla.redhat.com/show_bug.cgi?id=1553531
- http://www.securityfocus.com/bid/103359
- https://usn.ubuntu.com/3608-1/
- https://lists.debian.org/debian-lts-announce/2018/03/msg00038.html
- https://security.gentoo.org/glsa/201805-10
- https://access.redhat.com/errata/RHSA-2018:3073
- https://lists.debian.org/debian-lts-announce/2020/12/msg00000.html