Home/CVE/In the standard library in Rust before 1.49.0, String::retain() function has a panic safety problem. It allows creation
CVE

CVE-2020-36317

In the standard library in Rust before 1.49.0, String::retain() function has a panic safety problem. It allows creation

In the standard library in Rust before 1.49.0, String::retain() function has a panic safety problem. It allows creation of a non-UTF-8 Rust string when the provided closure panics. This bug could result in a memory safety violation when other string APIs assume that UTF-8 encoding is used on the same string.

HIGH · CVSS 7.5 EPSS 0.00192
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-787Out-of-bounds Write
▤

Affected Products & Versions

1
rust-lang rust< 1.49.0
⚠

Public Exploits & PoCs

1
pocgithub.com · 78498github.com
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD11 Apr 2021 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

3
msrcCVE-2020-36317
rhsaRHSA-2021:1935Moderate
rhsaRHSA-2021:2243Moderate
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/rust-lang/rust/pull/78499PatchThird Party Advisory
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