CVE-2019-14868

HIGH
7.8
CVSS Score
Published: April 2, 2020 at 04:48 PM UTC
Updated: June 17, 2026 at 02:19 AM UTC
4 products affected across 4 vendorsmacOSDebian LinuxKsh

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Severity
HIGH7.8
Exploit prediction
EPSS 1%

Description

In ksh version 20120801, a flaw was found in the way it evaluates certain environment variables. An attacker could use this flaw to override or bypass environment restrictions to execute shell commands. Services and applications that allow remote unauthenticated attackers to provide one of those environment variables could allow them to exploit this issue remotely.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 10.15.5
Affected range stops below 10.15.5, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (5)

Mailing Listx_refsource_FULLDISCThird Party Advisory
http://seclists.org/fulldisclosure/2020/May/53
x_refsource_CONFIRMIssue TrackingThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14868
Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00015.html
x_refsource_CONFIRMThird Party Advisory
https://support.apple.com/kb/HT211170

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-77

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