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CVE-2023-41052

LOW
Published 2023-09-04T17:36:23.480Z
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Expert Analysis

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CVSS Score

V3.1
3.7
/10
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Base Score Metrics
Exploitability: N/A Impact: N/A

EPSS Score

v2023.03.01
0.001
probability
of exploitation in the wild

There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.

Updated: 2025-01-25
Exploit Probability
Percentile: 0.277
Higher than 27.7% of all CVEs

Attack Vector Metrics

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED

Impact Metrics

Confidentiality
NONE
Integrity
LOW
Availability
NONE

Description

Vyper is a Pythonic Smart Contract Language. In affected versions the order of evaluation of the arguments of the builtin functions `uint256_addmod`, `uint256_mulmod`, `ecadd` and `ecmul` does not follow source order. This behaviour is problematic when the evaluation of one of the arguments produces side effects that other arguments depend on. A patch is currently being developed on pull request #3583. When using builtins from the list above, users should make sure that the arguments of the expression do not produce side effects or, if one does, that no other argument is dependent on those side effects.

Available Exploits

No exploits available for this CVE.

Related News

No news articles found for this CVE.

Affected Products

vyperlang

vyper

Affected Versions:

<= 0.3.9

GitHub Security Advisories

Community-driven vulnerability intelligence from GitHub

✓ GitHub Reviewed MODERATE

incorrect order of evaluation of side effects for some builtins

GHSA-4hg4-9mf5-wxxq

Advisory Details

### Impact The order of evaluation of the arguments of the builtin functions `uint256_addmod`, `uint256_mulmod`, `ecadd` and `ecmul` does not follow source order. • For `uint256_addmod(a,b,c)` and `uint256_mulmod(a,b,c)`, the order is `c,a,b`. • For `ecadd(a,b)` and `ecmul(a,b)`, the order is `b,a`. Note that this behaviour is problematic when the evaluation of one of the arguments produces side effects that other arguments depend on. ### Patches https://github.com/vyperlang/vyper/pull/3583 ### Workarounds When using builtins from the list above, make sure that the arguments of the expression do not produce side effects or, if one does, that no other argument is dependent on those side effects. ### References _Are there any links users can visit to find out more?_

Affected Packages

PyPI vyper
ECOSYSTEM: ≥0 <0.3.10rc1

CVSS Scoring

CVSS Score

5.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

References

WEB https://github.com/vyperlang/vyper/security/advisories/GHSA-4hg4-9mf5-wxxq
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2023-41052
WEB https://github.com/vyperlang/vyper/pull/3583
WEB https://github.com/pypa/advisory-database/tree/main/vulns/vyper/PYSEC-2023-168.yaml
PACKAGE https://github.com/vyperlang/vyper

Advisory provided by GitHub Security Advisory Database. Published: September 4, 2023, Modified: November 19, 2024

References

https://github.com/vyperlang/vyper/security/advisories/GHSA-4hg4-9mf5-wxxq
https://github.com/vyperlang/vyper/pull/3583
Published: 2023-09-04T17:36:23.480Z
Last Modified: 2024-09-26T18:30:33.353Z
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