CVE-2023-39323 (GCVE-0-2023-39323)

Vulnerability from cvelistv5 – Published: 2023-10-05 20:36 – Updated: 2025-06-12 15:15
VLAI?
Title
Arbitrary code execution during build via line directives in cmd/go
Summary
Line directives ("//line") can be used to bypass the restrictions on "//go:cgo_" directives, allowing blocked linker and compiler flags to be passed during compilation. This can result in unexpected execution of arbitrary code when running "go build". The line directive requires the absolute path of the file in which the directive lives, which makes exploiting this issue significantly more complex.
Severity ?
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE 94: Improper Control of Generation of Code ('Code Injection')
Assigner
Go
References
Impacted products
Vendor Product Version
Go toolchain cmd/go Affected: 0 , < 1.20.9 (semver)
Affected: 1.21.0-0 , < 1.21.2 (semver)
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.