CVE-2025-9300 (GCVE-0-2025-9300)
Vulnerability from cvelistv5 – Published: 2025-08-21 13:02 – Updated: 2025-08-21 14:46
VLAI
EPSS
VEX
Title
saitoha libsixel img2sixel encoder.c sixel_debug_print_palette stack-based overflow
Summary
A vulnerability was found in saitoha libsixel up to 1.10.3. Affected by this issue is the function sixel_debug_print_palette of the file src/encoder.c of the component img2sixel. The manipulation results in stack-based buffer overflow. The attack must be initiated from a local position. The exploit has been made public and could be used. The patch is identified as 316c086e79d66b62c0c4bc66229ee894e4fdb7d1. Applying a patch is advised to resolve this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-08-21 13:22 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.320905 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.320905 | signaturepermissions-required |
| https://vuldb.com/?submit.632366 | third-party-advisory |
| https://github.com/saitoha/libsixel/issues/200 | issue-tracking |
| https://github.com/saitoha/libsixel/issues/200#is… | issue-tracking |
| https://drive.google.com/file/d/1IIvvRFgUQZcySqeo… | exploit |
| https://github.com/saitoha/libsixel/commit/316c08… | patch |
Impacted products
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"vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 4.3,
"vectorString": "AV:L/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:OF/RC:C",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-121",
"description": "Stack-based Buffer Overflow",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-119",
"description": "Memory Corruption",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-08-21T13:02:08.108Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-320905 | saitoha libsixel img2sixel encoder.c sixel_debug_print_palette stack-based overflow",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/?id.320905"
},
{
"name": "VDB-320905 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.320905"
},
{
"name": "Submit #632366 | LibSixel img2sixel LibSixel version 1.10.3 (commit 6dd664c) compiled on Aug 2 2025 and the newest master version. Heap Buffer Overflow",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/?submit.632366"
},
{
"tags": [
"issue-tracking"
],
"url": "https://github.com/saitoha/libsixel/issues/200"
},
{
"tags": [
"issue-tracking"
],
"url": "https://github.com/saitoha/libsixel/issues/200#issuecomment-3178785635"
},
{
"tags": [
"exploit"
],
"url": "https://drive.google.com/file/d/1IIvvRFgUQZcySqeoqXXhsxd0HZCjClJ7/view?usp=sharing"
},
{
"tags": [
"patch"
],
"url": "https://github.com/saitoha/libsixel/commit/316c086e79d66b62c0c4bc66229ee894e4fdb7d1"
}
],
"timeline": [
{
"lang": "en",
"time": "2025-08-21T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2025-08-21T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2025-08-21T07:30:11.000Z",
"value": "VulDB entry last update"
}
],
"title": "saitoha libsixel img2sixel encoder.c sixel_debug_print_palette stack-based overflow"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2025-9300",
"datePublished": "2025-08-21T13:02:08.108Z",
"dateReserved": "2025-08-21T05:25:08.724Z",
"dateUpdated": "2025-08-21T14:46:37.782Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
}
}
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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.
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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.
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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.
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