CVE-2023-29420

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Source
https://cve.org/CVERecord?id=CVE-2023-29420
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-29420.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2023-29420
Downstream
Published
2023-04-06T00:00:00Z
Modified
2026-08-27T10:10:43Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An issue was discovered in libbzip3.a in bzip3 before 1.2.3. There is a crash caused by an invalid memmove in bz3_decode_block.

Database specific 
{
    "cna_assigner": "mitre",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/29xxx/CVE-2023-29420.json"
}
References

Affected packages

Git / github.com/iczelia/bzip3

Affected ranges

Type
GIT
Repo
https://github.com/iczelia/bzip3
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
3bf1483853b7d3371b4a6beb186cbddcaf45d25e
Fixed
bb06deb85f1c249838eb938e0dab271d4194f8fa
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:bzip3_project:bzip3:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.2.3"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

1.*
1.0.0
1.0.1
1.1.0
1.1.1
1.1.2
1.1.3
1.1.4
1.1.5
1.1.6
1.1.7
1.1.8
1.2.0
1.2.1
1.2.2
Other
corpus

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-29420.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "78927651910423473054068276738405572694",
            "length": 2428
        },
        "id": "CVE-2023-29420-c1508cb8",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/iczelia/bzip3/commit/bb06deb85f1c249838eb938e0dab271d4194f8fa",
        "target": {
            "file": "src/libbz3.c",
            "function": "bz3_decode_block"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "176151160024430871228388812718175632404",
                "148928673947002201083747821524943350945",
                "305471874631366783360112357820524980417",
                "90638596750532673362592108567729244609"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2023-29420-f8920d99",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/iczelia/bzip3/commit/bb06deb85f1c249838eb938e0dab271d4194f8fa",
        "target": {
            "file": "src/libbz3.c"
        }
    }
]
vanir_signatures_modified 
"2026-08-27T10:10:43Z"