CVE-2023-24537
golang: go/parser: Infinite loop in parsing
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 4, 2023
Updated · November 1, 2026
Description
A flaw was found in Golang Go, where it is vulnerable to a denial of service caused by an infinite loop due to integer overflow when calling any of the Parse functions. By sending a specially crafted input, a remote attacker can cause a denial of service.
Statement
This vulnerability has been rated Moderate because it allows denial of service condition in Go’s source code parser when processing specially crafted input containing //line directives with excessively large line numbers. Exploitation can cause the parser to enter an infinite loop, consuming CPU resources and rendering services unresponsive. While this issue does not permit code execution or data access, it poses a significant availability impact for systems processing untrusted Go source input.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
To mitigate this issue, upgrade Go to version 1.19.8, 1.20.3, or later, where the vulnerability has been addressed.
CVSS / CWE
CVSS 3.1 · 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-835 · Loop with Unreachable Exit Condition