CVE-2025-15514

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Source
https://cve.org/CVERecord?id=CVE-2025-15514
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-15514.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-15514
Downstream
Published
2026-01-12T23:03:52.922Z
Modified
2026-07-08T07:57:57.603847422Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Ollama Multi-Modal Model Image Processing NULL Pointer Dereference
Details

Ollama 0.11.5-rc0 through current version 0.13.5 contain a null pointer dereference vulnerability in the multi-modal model image processing functionality. When processing base64-encoded image data via the /api/chat endpoint, the application fails to validate that the decoded data represents valid media before passing it to the mtmdhelperbitmapinitfrom_buf function. This function can return NULL for malformed input, but the code does not check this return value before dereferencing the pointer in subsequent operations. A remote attacker can exploit this by sending specially crafted base64 image data that decodes to invalid media, causing a segmentation fault and crashing the runner process. This results in a denial of service condition where the model becomes unavailable to all users until the service is restarted.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "unresolved_ranges": [
        {
            "source": "AFFECTED_FIELD",
            "extracted_events": [
                {
                    "introduced": "v0.11.5-rc0"
                },
                {
                    "last_affected": "0.13.5"
                }
            ]
        },
        {
            "source": "CPE_FIELD",
            "extracted_events": [
                {
                    "introduced": "0.11.5"
                },
                {
                    "last_affected": "0.13.5"
                }
            ]
        },
        {
            "source": "DESCRIPTION",
            "extracted_events": [
                {
                    "introduced": "0.11.5-rc0"
                }
            ]
        }
    ],
    "cwe_ids": [
        "CWE-395"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/15xxx/CVE-2025-15514.json"
}
References

Affected packages

Git / github.com/ollama/ollama

Affected ranges

Type
GIT
Repo
https://github.com/ollama/ollama
Events
Introduced
6de62664d957a9b6606b39330af701b5f4a24035
Last affected
7325791599409de52534429897481918717a9e85
Introduced
f804e8a46005b36e6f14577f4226cf2046abce12
Last affected
d925b5350c75a66e7830e00f53b243084395821f
Database specific 
{
    "source": [
        "CPE_RANGE",
        "CPE_STRING"
    ],
    "extracted_events": [
        {
            "introduced": "0.11.6"
        },
        {
            "last_affected": "0.13.5"
        },
        {
            "introduced": "0.11.5-NA"
        },
        {
            "last_affected": "0.11.5-NA"
        },
        {
            "introduced": "0.11.5-rc3"
        },
        {
            "last_affected": "0.11.5-rc3"
        },
        {
            "introduced": "0.11.5-rc4"
        },
        {
            "last_affected": "0.11.5-rc4"
        },
        {
            "introduced": "0.11.5-rc5"
        },
        {
            "last_affected": "0.11.5-rc5"
        },
        {
            "introduced": "0.11.5-rc0"
        },
        {
            "last_affected": "0.11.5-rc0"
        },
        {
            "introduced": "0.11.5-rc1"
        },
        {
            "last_affected": "0.11.5-rc1"
        },
        {
            "introduced": "0.11.5-rc2"
        },
        {
            "last_affected": "0.11.5-rc2"
        }
    ],
    "cpe": [
        "cpe:2.3:a:ollama:ollama:*:-:*:*:*:*:*:*",
        "cpe:2.3:a:ollama:ollama:0.11.5:-:*:*:*:*:*:*",
        "cpe:2.3:a:ollama:ollama:0.11.5:rc3:*:*:*:*:*:*",
        "cpe:2.3:a:ollama:ollama:0.11.5:rc4:*:*:*:*:*:*",
        "cpe:2.3:a:ollama:ollama:0.11.5:rc5:*:*:*:*:*:*",
        "cpe:2.3:a:ollama:ollama:0.11.5:rc0:*:*:*:*:*:*",
        "cpe:2.3:a:ollama:ollama:0.11.5:rc1:*:*:*:*:*:*",
        "cpe:2.3:a:ollama:ollama:0.11.5:rc2:*:*:*:*:*:*"
    ]
}

Affected versions

0.*
0.11.5-NA
0.11.5-rc0
0.11.5-rc1
0.11.5-rc2
v0.*
v0.11.10
v0.11.11
v0.11.11-rc0
v0.11.11-rc1
v0.11.11-rc2
v0.11.11-rc3
v0.11.6
v0.11.6-rc0
v0.11.7
v0.11.7-rc0
v0.11.7-rc1
v0.11.8
v0.11.8-rc0
v0.11.9
v0.11.9-rc0
v0.12.0
v0.12.0-rc0
v0.12.0-rc1
v0.12.1
v0.12.1-rc0
v0.12.1-rc1
v0.12.1-rc2
v0.12.10
v0.12.10-rc0
v0.12.10-rc1
v0.12.11
v0.12.11-rc0
v0.12.11-rc1
v0.12.2
v0.12.2-rc0
v0.12.3
v0.12.4
v0.12.4-rc0
v0.12.4-rc1
v0.12.4-rc2
v0.12.4-rc3
v0.12.4-rc4
v0.12.4-rc5
v0.12.4-rc6
v0.12.4-rc7
v0.12.5
v0.12.5-rc0
v0.12.6
v0.12.6-rc0
v0.12.6-rc1
v0.12.7
v0.12.7-rc0
v0.12.7-rc1
v0.12.8
v0.12.8-rc0
v0.12.9
v0.12.9-rc0
v0.13.0
v0.13.0-rc0
v0.13.1
v0.13.1-rc0
v0.13.1-rc1
v0.13.1-rc2
v0.13.2
v0.13.2-rc0
v0.13.2-rc1
v0.13.2-rc2
v0.13.3
v0.13.3-rc0
v0.13.3-rc1
v0.13.4
v0.13.4-rc0
v0.13.4-rc1
v0.13.4-rc2
v0.13.5
v0.13.5-rc0
v0.13.5-rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-15514.json"