CVE-2023-29403

Unsafe behavior in setuid/setgid binaries in runtime

HIGH
7.8
CVSS Score
Published: June 8, 2023 at 08:19 PM UTC
Updated: June 17, 2026 at 05:49 AM UTC
3 products affected across 3 vendorsFedoraGoRuntime

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Severity
HIGH7.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

On Unix platforms, the Go runtime does not behave differently when a binary is run with the setuid/setgid bits. This can be dangerous in certain cases, such as when dumping memory state, or assuming the status of standard i/o file descriptors. If a setuid/setgid binary is executed with standard I/O file descriptors closed, opening any files can result in unexpected content being read or written with elevated privileges. Similarly, if a setuid/setgid program is terminated, either via panic or signal, it may leak the contents of its registers.

Affected

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

v < 1.19.101.20.0 ≤ v < 1.20.5
Affected range stops below 1.19.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.20.5, so it looks safe — our inference, not a vendor statement
v < 1.19.101.20.0-0 ≤ v < 1.20.51.20.0-0
Affected range stops below 1.19.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 1.20.5, 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:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-668

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