Critical
giac — security advisory
A vulnerability was found in MicroPython up to 1.21.0. It has been classified as critical. Affected is the function slice_indices of the file objslice.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.22.0 is able to address this issue. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-249180.
- Products
- giac
- Affected versions
- 1.2.3.57+dfsg1-2build1, 1.2.3.57+dfsg1-2build2, 1.2.3.57+dfsg1-2build3, 1.4.9.69+dfsg1-2build1, 1.5.0.85+dfsg1-2, 1.5.0.85+dfsg1-3, 1.6.0.41+dfsg1-1, 1.7.0.39+dfsg2-1build1, 1.7.0.39+dfsg2-1build2, 1.9.0.35+dfsg2-1.1, 1.9.0.59+dfsg2-1, 1.9.0.69+dfsg2-1, 1.9.0.93+dfsg2-2, 1.9.0.93+dfsg2-3build1, 1.9.0.93+dfsg2-3build2, 1.9.0.93+dfsg2-4
- Fixed versions
- Not specified
- CVEs
- CVE-2023-7158
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 01:11 UTC · Revision 1
Source evidence
A vulnerability was found in MicroPython up to 1.21.0. It has been classified as critical. Affected is the function slice_indices of the file objslice.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.22.0 is able to address this issue. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-249180.
osv:UBUNTU-CVE-2023-7158
giac
Fixed versions: Not specified
giac
Fixed versions: Not specified
giac
Fixed versions: Not specified
giac
Fixed versions: Not specified
giac
Fixed versions: Not specified
giac
Fixed versions: Not specified
giac
Fixed versions: Not specified
Complete source record
{
"id": "00ba5e4b0f6fc859f6c5b87b466c07ff04de4d78332072268764396767e5e781",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2023-7158",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2023-7158",
"summary": "A vulnerability was found in MicroPython up to 1.21.0. It has been classified as critical. Affected is the function slice_indices of the file objslice.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.22.0 is able to address this issue. It is recommended to upgrade the affected component. The identifier of this vulnerability is VDB-249180.",
"evidence": "osv:UBUNTU-CVE-2023-7158",
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],
"severity": "critical",
"structured": {
"id": "UBUNTU-CVE-2023-7158",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
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"database_specific": {
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},
"ecosystem_specific": {
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{
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"ecosystem": "Ubuntu:20.04:LTS"
},
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"1.5.0.85+dfsg1-2",
"1.5.0.85+dfsg1-3"
],
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},
"ecosystem_specific": {
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"ecosystem": "Ubuntu:22.04:LTS"
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"ecosystem": "Ubuntu:25.10"
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},
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],
"modified": "2026-10-17T12:56:43.062412029Z",
"provider": "osv",
"upstream": [
"CVE-2023-7158"
],
"references": [
"https://ubuntu.com/security/CVE-2023-7158",
"https://github.com/micropython/micropython/issues/13007",
"https://github.com/micropython/micropython/pull/13039",
"https://github.com/micropython/micropython/pull/13039/commits/f397a3ec318f3ad05aa287764ae7cef32202380f",
"https://github.com/micropython/micropython/releases/tag/v1.22.0",
"https://www.cve.org/CVERecord?id=CVE-2023-7158"
]
},
"related_cves": [
{
"value": "CVE-2023-7158",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 356038,
"published_at": "2023-12-29T07:15:00+00:00"
}