CVE-2018-20456

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Source
https://cve.org/CVERecord?id=CVE-2018-20456
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20456.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2018-20456
Downstream
Published
2018-12-25T19:29:00.290Z
Modified
2026-02-22T08:17:29.359853Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In radare2 prior to 3.1.1, the parseOperand function inside libr/asm/p/asmx86nz.c may allow attackers to cause a denial of service (application crash in libr/util/strbuf.c via a stack-based buffer over-read) by crafting an input file, a related issue to CVE-2018-20455.

References

Affected packages

Git / github.com/radare/radare2

Affected ranges

Type
GIT
Repo
https://github.com/radare/radare2
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
b143e1b1b5622ef2f41a90f4c0f7ed4c477caf40

Affected versions

0.*
0.10.0
0.10.1
0.10.2
0.10.3
0.10.4
0.10.4-termux4
0.10.5
0.10.6
0.8.6
0.8.8
0.9
0.9.2
0.9.4
0.9.6
0.9.7
0.9.8
0.9.8-rc1
0.9.8-rc2
0.9.8-rc3
0.9.8-rc4
0.9.9
1.*
1.0
1.0.0
1.0.1
1.0.2
1.1.0
1.2.0
1.2.0-git
1.3.0
1.3.0-git
1.4.0
1.5.0
1.6.0
2.*
2.0.0
2.0.1
2.1.0
2.2.0
2.4.0
2.5.0
2.6.0
2.6.9
2.7.0
2.8.0
2.9.0
3.*
3.0.0
3.0.1
3.1.0
Other
radare2-windows-nightly
termux

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-20456.json"
vanir_signatures 
[
    {
        "signature_version": "v1",
        "id": "CVE-2018-20456-c708ff72",
        "source": "https://github.com/radare/radare2/commit/b143e1b1b5622ef2f41a90f4c0f7ed4c477caf40",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "91826688001801390993882391060580842390",
                "153573451393114912523381648709776456045",
                "76273051819025290594568241401172330628",
                "223983239877208572709103316397190836729",
                "182546693358306982969485629985754146842"
            ]
        },
        "target": {
            "file": "libr/bin/format/mach0/dyldcache.c"
        },
        "signature_type": "Line",
        "deprecated": false
    },
    {
        "signature_version": "v1",
        "id": "CVE-2018-20456-f5af8262",
        "source": "https://github.com/radare/radare2/commit/b143e1b1b5622ef2f41a90f4c0f7ed4c477caf40",
        "digest": {
            "function_hash": "161720472885181522724332432472867243711",
            "length": 217.0
        },
        "target": {
            "file": "libr/bin/format/mach0/dyldcache.c",
            "function": "r_buf_read_string"
        },
        "signature_type": "Function",
        "deprecated": false
    }
]