Gentoo FoundationGLSA-202407-01Zsh: Prompt Expansion Vulnerability
5.1 Medium
CVSS2
Attack Vector
NETWORK
Attack 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
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
7.7 High
AI Score
Confidence
Low
0.001 Low
EPSS
Percentile
38.7%
Background
A shell designed for interactive use, although it is also a powerful scripting language.
Description
Multiple vulnerabilities have been discovered in Zsh. Please review the CVE identifiers referenced below for details.
Impact
A vulnerability in prompt expansion could be exploited through e.g. VCS_Info to execute arbitrary shell commands without a user’s knowledge.
Workaround
There is no known workaround at this time.
Resolution
All Zsh users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=app-shells/zsh-5.8.1"
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Gentoo | any | all | app-shells/zsh | < 5.8.1 | UNKNOWN |
Related
5.1 Medium
CVSS2
Attack Vector
NETWORK
Attack 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
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
7.7 High
AI Score
Confidence
Low
0.001 Low
EPSS
Percentile
38.7%