| id: GO-2020-0015 |
| modules: |
| - module: golang.org/x/text |
| versions: |
| - fixed: 0.3.3 |
| vulnerable_at: 0.3.2 |
| packages: |
| - package: golang.org/x/text/encoding/unicode |
| symbols: |
| - utf16Decoder.Transform |
| derived_symbols: |
| - bomOverride.Transform |
| - package: golang.org/x/text/transform |
| symbols: |
| - String |
| summary: Infinite loop when decoding some inputs in golang.org/x/text |
| description: |- |
| An attacker could provide a single byte to a UTF16 decoder instantiated with |
| UseBOM or ExpectBOM to trigger an infinite loop if the String function on the |
| Decoder is called, or the Decoder is passed to transform.String. If used to |
| parse user supplied input, this may be used as a denial of service vector. |
| published: 2021-04-14T20:04:52Z |
| cves: |
| - CVE-2020-14040 |
| ghsas: |
| - GHSA-5rcv-m4m3-hfh7 |
| credits: |
| - '@abacabadabacaba' |
| - Anton Gyllenberg |
| references: |
| - fix: https://go.dev/cl/238238 |
| - fix: https://go.googlesource.com/text/+/23ae387dee1f90d29a23c0e87ee0b46038fbed0e |
| - report: https://go.dev/issue/39491 |
| - web: https://groups.google.com/g/golang-announce/c/bXVeAmGOqz0 |
| review_status: REVIEWED |
