CVE-2023-30629 (GCVE-0-2023-30629)
Vulnerability from cvelistv5 – Published: 2023-04-24 21:58 – Updated: 2025-02-12 16:35
VLAI
EPSS
VEX
Title
Vyper's raw_call with outsize=0 and revert_on_failure=False returns incorrect success value
Summary
Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize>0`.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-02-03 20:54 UTC
CWE
- CWE-670 - Always-Incorrect Control Flow Implementation
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/vyperlang/vyper/security/advis… | x_refsource_CONFIRM |
| https://github.com/lidofinance/gate-seals/pull/5/files | x_refsource_MISC |
| https://github.com/vyperlang/vyper/commit/851f7a1… | x_refsource_MISC |
| https://docs.vyperlang.org/en/v0.3.7/built-in-fun… | x_refsource_MISC |
| https://github.com/lidofinance/gate-seals/blob/05… | x_refsource_MISC |
Impacted products
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T14:28:52.121Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9",
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
},
{
"name": "https://github.com/lidofinance/gate-seals/pull/5/files",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/lidofinance/gate-seals/pull/5/files"
},
{
"name": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
},
{
"name": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call"
},
{
"name": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-30629",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-03T20:54:22.454011Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-02-12T16:35:42.775Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "vyper",
"vendor": "vyperlang",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.3.1, \u003c= 0.3.7"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize\u003e0`."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-670",
"description": "CWE-670: Always-Incorrect Control Flow Implementation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-04-24T21:58:00.227Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
},
{
"name": "https://github.com/lidofinance/gate-seals/pull/5/files",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/lidofinance/gate-seals/pull/5/files"
},
{
"name": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
},
{
"name": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call",
"tags": [
"x_refsource_MISC"
],
"url": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call"
},
{
"name": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164"
}
],
"source": {
"advisory": "GHSA-w9g2-3w7p-72g9",
"discovery": "UNKNOWN"
},
"title": "Vyper\u0027s raw_call with outsize=0 and revert_on_failure=False returns incorrect success value"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2023-30629",
"datePublished": "2023-04-24T21:58:00.227Z",
"dateReserved": "2023-04-13T13:25:18.834Z",
"dateUpdated": "2025-02-12T16:35:42.775Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2023-30629",
"date": "2026-10-10",
"epss": "0.00883",
"percentile": "0.58019"
},
"fkie_nvd": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:*:*:*",
"matchCriteriaId": "BA2EC8D5-7723-4112-B674-AB70975FDEEA",
"versionEndExcluding": "0.3.8",
"versionStartIncluding": "0.3.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize\u003e0`."
}
],
"id": "CVE-2023-30629",
"lastModified": "2024-11-21T08:00:32.820",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2023-04-24T22:15:10.030",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Product"
],
"url": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call"
},
{
"source": "security-advisories@github.com",
"tags": [
"Product"
],
"url": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164"
},
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/lidofinance/gate-seals/pull/5/files"
},
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
},
{
"source": "security-advisories@github.com",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Product"
],
"url": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Product"
],
"url": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://github.com/lidofinance/gate-seals/pull/5/files"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-670"
}
],
"source": "security-advisories@github.com",
"type": "Primary"
}
]
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"product": "vyper",
"vendor": "vyperlang",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.3.1, \u003c= 0.3.7"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:*:*:*",
"matchCriteriaId": "BA2EC8D5-7723-4112-B674-AB70975FDEEA",
"versionEndExcluding": "0.3.8",
"versionStartIncluding": "0.3.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize\u003e0`."
}
],
"id": "CVE-2023-30629",
"lastModified": "2026-06-17T05:55:11.670",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-30629",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-03T20:54:22.454011Z",
"version": "2.0.3"
}
}
]
},
"published": "2023-04-24T22:15:10.030",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Product"
],
"url": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call"
},
{
"source": "security-advisories@github.com",
"tags": [
"Product"
],
"url": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164"
},
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/lidofinance/gate-seals/pull/5/files"
},
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
},
{
"source": "security-advisories@github.com",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Product"
],
"url": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Product"
],
"url": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://github.com/lidofinance/gate-seals/pull/5/files"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-670"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2025-05-29T01:02:28+00:00",
"cve": "CVE-2023-30629",
"id": "CVE-2023-30629",
"initial_release_date": "2023-01-01T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Vyper\u0027s raw_call with outsize=0 and revert_on_failure=False returns incorrect success value",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-30629.json",
"version": "3"
},
"vulnrichment": {
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T14:28:52.121Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9",
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
},
{
"name": "https://github.com/lidofinance/gate-seals/pull/5/files",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/lidofinance/gate-seals/pull/5/files"
},
{
"name": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
},
{
"name": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call"
},
{
"name": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164",
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2023-30629",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-03T20:54:22.454011Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-02-12T16:35:39.357Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "vyper",
"vendor": "vyperlang",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.3.1, \u003c= 0.3.7"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize\u003e0`."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-670",
"description": "CWE-670: Always-Incorrect Control Flow Implementation",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-04-24T21:58:00.227Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
},
{
"name": "https://github.com/lidofinance/gate-seals/pull/5/files",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/lidofinance/gate-seals/pull/5/files"
},
{
"name": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
},
{
"name": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call",
"tags": [
"x_refsource_MISC"
],
"url": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call"
},
{
"name": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164"
}
],
"source": {
"advisory": "GHSA-w9g2-3w7p-72g9",
"discovery": "UNKNOWN"
},
"title": "Vyper\u0027s raw_call with outsize=0 and revert_on_failure=False returns incorrect success value"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2023-30629",
"datePublished": "2023-04-24T21:58:00.227Z",
"dateReserved": "2023-04-13T13:25:18.834Z",
"dateUpdated": "2025-02-12T16:35:42.775Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
FKIE_CVE-2023-30629
Vulnerability from fkie_nvd - Published: 2023-04-24 22:15 - Updated: 2026-06-17 05:55
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
7.5 (High) - CVSS:3.1/
Summary
Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize>0`.
References
{
"affected": [
{
"affectedData": [
{
"product": "vyper",
"vendor": "vyperlang",
"versions": [
{
"status": "affected",
"version": "\u003e= 0.3.1, \u003c= 0.3.7"
}
]
}
],
"source": "security-advisories@github.com"
}
],
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:*:*:*",
"matchCriteriaId": "BA2EC8D5-7723-4112-B674-AB70975FDEEA",
"versionEndExcluding": "0.3.8",
"versionStartIncluding": "0.3.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize\u003e0`."
}
],
"id": "CVE-2023-30629",
"lastModified": "2026-06-17T05:55:11.670",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2023-30629",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-02-03T20:54:22.454011Z",
"version": "2.0.3"
}
}
]
},
"published": "2023-04-24T22:15:10.030",
"references": [
{
"source": "security-advisories@github.com",
"tags": [
"Product"
],
"url": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call"
},
{
"source": "security-advisories@github.com",
"tags": [
"Product"
],
"url": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164"
},
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/lidofinance/gate-seals/pull/5/files"
},
{
"source": "security-advisories@github.com",
"tags": [
"Patch"
],
"url": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
},
{
"source": "security-advisories@github.com",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Product"
],
"url": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Product"
],
"url": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://github.com/lidofinance/gate-seals/pull/5/files"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch"
],
"url": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
}
],
"sourceIdentifier": "security-advisories@github.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-670"
}
],
"source": "security-advisories@github.com",
"type": "Secondary"
}
]
}
GHSA-W9G2-3W7P-72G9
Vulnerability from github – Published: 2023-04-24 22:33 – Updated: 2024-11-19 16:31
VLAI
Summary
Incorrect success value returned in vyper
Details
Background
During the audit of Lido's Gate Seals code statemind team identified a weird behavior of the code that uses raw_call: https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164 .
Construction like this:
success = raw_call(
sealable,
_abi_encode(SEAL_DURATION_SECONDS, method_id=method_id("pauseFor(uint256)")),
revert_on_failure=False
)
was not fully documented: https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call .
The documentation says that: if max_outsize=0 it should return nothing and then it says that if revert_on_failure=False it should return a success flag in the tuple of response, but what if max_outsize=0 and revert_on_failure=False.
So the team started researching what exactly happened in that case, after some research we found that the Vyper compiler generates the wrong bytecode in that case, it generates the sequence:
CALL // call
MLOAD // MLOAD is wrong since the CALL result is already stored in the stack
Impact
Example of buggy code:
@external
def returnSome(calling: address, a: uint256) -> bool:
success: bool = false
success = raw_call(
calling,
_abi_encode(a, method_id=method_id("a(uint256)")),
revert_on_failure=False
)
any contract that uses the raw_call with revert_on_failure=False and max_outsize=0 receives the wrong response from raw_call. Depending on the memory garbage, the result can be either True or False.
Patches
Fix by @charles-cooper https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae
Workarounds
The simple workaround is always to put max_outsize>0.
Workaround example https://github.com/lidofinance/gate-seals/pull/5/files
References
Lido's fix: https://github.com/lidofinance/gate-seals/pull/5/files
Severity
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "vyper"
},
"ranges": [
{
"events": [
{
"introduced": "0.3.1"
},
{
"fixed": "0.3.8"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-30629"
],
"database_specific": {
"cwe_ids": [
"CWE-670"
],
"github_reviewed": true,
"github_reviewed_at": "2023-04-24T22:33:52Z",
"nvd_published_at": "2023-04-24T22:15:10Z",
"severity": "HIGH"
},
"details": "### Background\nDuring the audit of [Lido\u0027s Gate Seals](https://github.com/lidofinance/gate-seals) code [statemind](https://statemind.io) team identified a weird behavior of the code that uses `raw_call`: https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164 .\n\nConstruction like this:\n```vyper\nsuccess = raw_call(\n sealable,\n _abi_encode(SEAL_DURATION_SECONDS, method_id=method_id(\"pauseFor(uint256)\")),\n revert_on_failure=False\n)\n```\nwas not fully documented: https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call .\n\nThe documentation says that: if `max_outsize=0` it should return nothing and then it says that if `revert_on_failure=False` it should return a `success` flag in the tuple of response, but what if `max_outsize=0` and `revert_on_failure=False`.\n\n\u003cimg width=\"715\" alt=\"image\" src=\"https://user-images.githubusercontent.com/22330612/232125364-d2b3bbac-0b4f-40cb-80ff-f55d8eafef44.png\"\u003e\n\n So the team started researching what exactly happened in that case, after some research we found that the Vyper compiler generates the wrong bytecode in that case, it generates the sequence:\n```\nCALL // call\nMLOAD // MLOAD is wrong since the CALL result is already stored in the stack\n```\n\n### Impact\nExample of buggy code:\n```vyper\n@external\ndef returnSome(calling: address, a: uint256) -\u003e bool:\n success: bool = false\n success = raw_call(\n calling,\n _abi_encode(a, method_id=method_id(\"a(uint256)\")),\n revert_on_failure=False\n )\n```\n\nany contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`.\n\n### Patches\nFix by @charles-cooper https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae\n\n### Workarounds\nThe simple workaround is always to put `max_outsize\u003e0`.\nWorkaround example https://github.com/lidofinance/gate-seals/pull/5/files\n\n### References\nLido\u0027s fix: https://github.com/lidofinance/gate-seals/pull/5/files\n",
"id": "GHSA-w9g2-3w7p-72g9",
"modified": "2024-11-19T16:31:34Z",
"published": "2023-04-24T22:33:52Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-30629"
},
{
"type": "WEB",
"url": "https://github.com/lidofinance/gate-seals/pull/5/files"
},
{
"type": "WEB",
"url": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
},
{
"type": "WEB",
"url": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call"
},
{
"type": "WEB",
"url": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/vyper/PYSEC-2023-131.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/vyperlang/vyper"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Incorrect success value returned in vyper"
}
GSD-2023-30629
Vulnerability from gsd - Updated: 2023-12-13 01:20Details
Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize>0`.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2023-30629",
"id": "GSD-2023-30629"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2023-30629"
],
"details": "Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize\u003e0`.",
"id": "GSD-2023-30629",
"modified": "2023-12-13T01:20:52.499795Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2023-30629",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "vyper",
"version": {
"version_data": [
{
"version_affected": "=",
"version_value": "\u003e= 0.3.1, \u003c= 0.3.7"
}
]
}
}
]
},
"vendor_name": "vyperlang"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize\u003e0`."
}
]
},
"impact": {
"cvss": [
{
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"cweId": "CWE-670",
"lang": "eng",
"value": "CWE-670: Always-Incorrect Control Flow Implementation"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9",
"refsource": "MISC",
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
},
{
"name": "https://github.com/lidofinance/gate-seals/pull/5/files",
"refsource": "MISC",
"url": "https://github.com/lidofinance/gate-seals/pull/5/files"
},
{
"name": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae",
"refsource": "MISC",
"url": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
},
{
"name": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call",
"refsource": "MISC",
"url": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call"
},
{
"name": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164",
"refsource": "MISC",
"url": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164"
}
]
},
"source": {
"advisory": "GHSA-w9g2-3w7p-72g9",
"discovery": "UNKNOWN"
}
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003e=0.3.1,\u003c0.3.8",
"affected_versions": "All versions starting from 0.3.1 before 0.3.8",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-670",
"CWE-937"
],
"date": "2023-08-02",
"description": "Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize\u003e0`.",
"fixed_versions": [
"0.3.8"
],
"identifier": "CVE-2023-30629",
"identifiers": [
"CVE-2023-30629",
"GHSA-w9g2-3w7p-72g9"
],
"not_impacted": "All versions before 0.3.1, all versions starting from 0.3.8",
"package_slug": "pypi/vyper",
"pubdate": "2023-04-24",
"solution": "Upgrade to version 0.3.8 or above.",
"title": "Always-Incorrect Control Flow Implementation",
"urls": [
"https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9",
"https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae",
"https://github.com/advisories/GHSA-w9g2-3w7p-72g9"
],
"uuid": "9919accf-126e-490c-b16d-c6d1d6d17ff3"
}
]
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:vyperlang:vyper:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "0.3.8",
"versionStartIncluding": "0.3.1",
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2023-30629"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize\u003e0`."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-670"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call",
"refsource": "MISC",
"tags": [
"Product"
],
"url": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call"
},
{
"name": "https://github.com/lidofinance/gate-seals/pull/5/files",
"refsource": "MISC",
"tags": [
"Patch"
],
"url": "https://github.com/lidofinance/gate-seals/pull/5/files"
},
{
"name": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164",
"refsource": "MISC",
"tags": [
"Product"
],
"url": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164"
},
{
"name": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9",
"refsource": "MISC",
"tags": [
"Exploit",
"Vendor Advisory"
],
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
},
{
"name": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae",
"refsource": "MISC",
"tags": [
"Patch"
],
"url": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
}
]
}
},
"impact": {
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6
}
},
"lastModifiedDate": "2023-08-02T16:22Z",
"publishedDate": "2023-04-24T22:15Z"
}
}
}
PYSEC-2023-131
Vulnerability from pysec - Published: 2023-04-24 22:15 - Updated: 2023-08-02 18:28
VLAI
Details
Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the raw_call with revert_on_failure=False and max_outsize=0 receives the wrong response from raw_call. Depending on the memory garbage, the result can be either True or False. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put max_outsize>0.
Severity
7.5 (High)
Impacted products
| Name | purl | vyper | pkg:pypi/vyper |
|---|
Aliases
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "vyper",
"purl": "pkg:pypi/vyper"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
}
],
"repo": "https://github.com/vyperlang/vyper",
"type": "GIT"
},
{
"events": [
{
"introduced": "0.3.1"
},
{
"fixed": "0.3.8"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.3.1",
"0.3.2",
"0.3.3",
"0.3.4",
"0.3.5",
"0.3.6",
"0.3.7"
]
}
],
"aliases": [
"CVE-2023-30629",
"GHSA-w9g2-3w7p-72g9"
],
"details": "Vyper is a Pythonic Smart Contract Language for the ethereum virtual machine. In versions 0.3.1 through 0.3.7, the Vyper compiler generates the wrong bytecode. Any contract that uses the `raw_call` with `revert_on_failure=False` and `max_outsize=0` receives the wrong response from `raw_call`. Depending on the memory garbage, the result can be either `True` or `False`. A patch is available and, as of time of publication, anticipated to be part of Vyper 0.3.8. As a workaround, one may always put `max_outsize\u003e0`.",
"id": "PYSEC-2023-131",
"modified": "2023-08-02T18:28:00.492615+00:00",
"published": "2023-04-24T22:15:00+00:00",
"references": [
{
"type": "WEB",
"url": "https://docs.vyperlang.org/en/v0.3.7/built-in-functions.html#raw_call"
},
{
"type": "FIX",
"url": "https://github.com/lidofinance/gate-seals/pull/5/files"
},
{
"type": "WEB",
"url": "https://github.com/lidofinance/gate-seals/blob/051593e74df01a4131c485b4fda52e691cd4b7d8/contracts/GateSeal.vy#L164"
},
{
"type": "EVIDENCE",
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
},
{
"type": "ADVISORY",
"url": "https://github.com/vyperlang/vyper/security/advisories/GHSA-w9g2-3w7p-72g9"
},
{
"type": "FIX",
"url": "https://github.com/vyperlang/vyper/commit/851f7a1b3aa2a36fd041e3d0ed38f9355a58c8ae"
}
],
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…