DebianDEBIAN:DLA-2926-1:E1FE1[SECURITY] [DLA 2926-1] zsh security update
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
5.1 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:H/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
37.5%
Debian LTS Advisory DLA-2926-1 [email protected]
https://www.debian.org/lts/security/ Emilio Pozuelo Monfort
February 18, 2022 https://wiki.debian.org/LTS
Package : zsh
Version : 5.3.1-4+deb9u5
CVE ID : CVE-2021-45444
It was discovered that zsh, a powerful shell and scripting language,
did not prevent recursive prompt expansion. This would allow an
attacker to execute arbitrary commands into a user's shell, for
instance by tricking a vcs_info user into checking out a git branch
with a specially crafted name.
For Debian 9 stretch, this problem has been fixed in version
5.3.1-4+deb9u5.
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
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 10 | armel | zsh-static | < 5.7.1-1+deb10u1 | zsh-static_5.7.1-1+deb10u1_armel.deb |
| Debian | 11 | amd64 | zsh-dev | < 5.8-6+deb11u1 | zsh-dev_5.8-6+deb11u1_amd64.deb |
| Debian | 10 | i386 | zsh-dbgsym | < 5.7.1-1+deb10u1 | zsh-dbgsym_5.7.1-1+deb10u1_i386.deb |
| Debian | 9 | armel | zsh-static | < 5.3.1-4+deb9u5 | zsh-static_5.3.1-4+deb9u5_armel.deb |
| Debian | 11 | amd64 | zsh-static | < 5.8-6+deb11u1 | zsh-static_5.8-6+deb11u1_amd64.deb |
| Debian | 10 | mips64el | zsh-dev | < 5.7.1-1+deb10u1 | zsh-dev_5.7.1-1+deb10u1_mips64el.deb |
| Debian | 10 | armhf | zsh-dev | < 5.7.1-1+deb10u1 | zsh-dev_5.7.1-1+deb10u1_armhf.deb |
| Debian | 11 | armel | zsh | < 5.8-6+deb11u1 | zsh_5.8-6+deb11u1_armel.deb |
| Debian | 11 | all | zsh-doc | < 5.8-6+deb11u1 | zsh-doc_5.8-6+deb11u1_all.deb |
| Debian | 11 | ppc64el | zsh-dev | < 5.8-6+deb11u1 | zsh-dev_5.8-6+deb11u1_ppc64el.deb |
Related
7.8 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
5.1 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
HIGH
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:H/Au:N/C:P/I:P/A:P
0.001 Low
EPSS
Percentile
37.5%