| id: GO-2021-0347 |
| modules: |
| - module: std |
| versions: |
| - fixed: 1.16.15 |
| - introduced: 1.17.0-0 |
| fixed: 1.17.8 |
| vulnerable_at: 1.17.7 |
| packages: |
| - package: regexp |
| symbols: |
| - regexp.Compile |
| skip_fix: 'TODO: revisit this reason (fix appears to not work with Go <1.18)' |
| summary: Stack exhaustion when compiling deeply nested expressions in regexp |
| description: |- |
| On 64-bit platforms, an extremely deeply nested expression can cause |
| regexp.Compile to cause goroutine stack exhaustion, forcing the program to exit. |
| Note this applies to very large expressions, on the order of 2MB. |
| published: 2022-05-23T22:15:47Z |
| cves: |
| - CVE-2022-24921 |
| credits: |
| - Juho Nurminen |
| references: |
| - fix: https://go.dev/cl/384616 |
| - fix: https://go.googlesource.com/go/+/452f24ae94f38afa3704d4361d91d51218405c0a |
| - report: https://go.dev/issue/51112 |
| - web: https://groups.google.com/g/golang-announce/c/RP1hfrBYVuk |
