CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
80.6%
Package : zsh
Version : 5.3.1-4+deb9u4
CVE ID : CVE-2017-18206 CVE-2018-0502 CVE-2018-1071 CVE-2018-1083
CVE-2018-1100 CVE-2018-13259 CVE-2019-20044
Debian Bug : 908000 894044 894043 895225 951458
Several security vulnerabilities were found and corrected in zsh, a powerful
shell and scripting language. Off-by-one errors, wrong parsing of shebang lines
and buffer overflows may lead to unexpected behavior. A local, unprivileged
user can create a specially crafted message file or directory path. If the
receiving user is privileged or traverses the aforementioned path, this leads
to privilege escalation.
For Debian 9 stretch, these problems have been fixed in version
5.3.1-4+deb9u4.
We recommend that you upgrade your zsh packages.
For the detailed security status of zsh please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/zsh
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
Attachment:
signature.asc
Description: This is a digitally signed message part
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 7 | amd64 | zsh-static | < 4.3.17-1+deb7u2 | zsh-static_4.3.17-1+deb7u2_amd64.deb |
Debian | 7 | armel | zsh-dev | < 4.3.17-1+deb7u2 | zsh-dev_4.3.17-1+deb7u2_armel.deb |
Debian | 7 | armhf | zsh-static | < 4.3.17-1+deb7u2 | zsh-static_4.3.17-1+deb7u2_armhf.deb |
Debian | 9 | all | zsh | < 5.3.1-4+deb9u1 | zsh_5.3.1-4+deb9u1_all.deb |
Debian | 7 | i386 | zsh | < 4.3.17-1+deb7u2 | zsh_4.3.17-1+deb7u2_i386.deb |
Debian | 7 | armel | zsh-static | < 4.3.17-1+deb7u2 | zsh-static_4.3.17-1+deb7u2_armel.deb |
Debian | 7 | amd64 | zsh-dbg | < 4.3.17-1+deb7u2 | zsh-dbg_4.3.17-1+deb7u2_amd64.deb |
Debian | 7 | armhf | zsh | < 4.3.17-1+deb7u2 | zsh_4.3.17-1+deb7u2_armhf.deb |
Debian | 7 | armel | zsh-dbg | < 4.3.17-1+deb7u2 | zsh-dbg_4.3.17-1+deb7u2_armel.deb |
Debian | 7 | all | zsh-doc | < 4.3.17-1+deb7u2 | zsh-doc_4.3.17-1+deb7u2_all.deb |
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
80.6%