PT-2023-28342 · Vyper · Vyper

Charles-Cooper + 1 · Published 2023-09-18 · Updated 2023-09-21 · CVE-2023-42441

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Vyper versions 0.2.9 through 0.3.9

Description The issue concerns locks of the type @nonreentrant("") or @nonreentrant('') that do not produce reentrancy checks at runtime. This can be mitigated by ensuring the lock name is a non-empty string.

Recommendations For versions 0.2.9 through 0.3.9, ensure the lock name is a non-empty string as a workaround until the issue is resolved by updating to version 0.3.10 or later. For version 0.3.10 and later, no additional action is required as the issue is fixed in this version.

Exploit

Fix

Improper Locking

Weakness Enumeration

CWE-667

CWE-833

Related Identifiers

CVE-2023-42441

GHSA-3HG2-R75X-G69M

PYSEC-2023-305

Affected Products

Vyper

References · 13

• 🔥 https://github.com/vyperlang/vyper/security/advisories/GHSA-3hg2-r75x-g69m · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/42xxx/CVE-2023-42441.json · Exploit
• https://github.com/vyperlang/vyper/commit/0b740280c1e3c5528a20d47b29831948ddcc6d83 · Patch
• https://github.com/vyperlang/vyper/pull/3605 · Patch
• https://osv.dev/vulnerability/PYSEC-2023-305 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-42441 · Security Note
• https://osv.dev/vulnerability/CVE-2023-42441 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-3hg2-r75x-g69m · Vendor Advisory
• https://github.com/vyperlang/vyper · Note
• https://github.com/pypa/advisory-database/tree/main/vulns/vyper/PYSEC-2023-305.yaml · Note
• https://t.me/cvenotify/58056 · Telegram Post
• https://t.me/cibsecurity/70677 · Telegram Post
• https://twitter.com/CVEnew/status/1703868346775622018 · Twitter Post