CVE-2020-21047

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Source
https://cve.org/CVERecord?id=CVE-2020-21047
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-21047.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-21047
Downstream
Published
2023-08-22T19:16:09.657Z
Modified
2026-04-11T20:35:25.787901Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

The libcpu component which is used by libasm of elfutils version 0.177 (git 47780c9e), suffers from denial-of-service vulnerability caused by application crashes due to out-of-bounds write (CWE-787), off-by-one error (CWE-193) and reachable assertion (CWE-617); to exploit the vulnerability, the attackers need to craft certain ELF files which bypass the missing bound checks.

References

Affected packages

Git / sourceware.org/git/elfutils.git

Affected ranges

Type
GIT
Repo
https://sourceware.org/git/elfutils.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
5643e037cb7a38ed5d52f50421be706ea8014e3d
Database specific 
{
    "source": "CPE_FIELD",
    "cpe": "cpe:2.3:a:elfutils_project:elfutils:0.177:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "0.177"
        }
    ]
}

Affected versions

elfutils-0.*
elfutils-0.120
elfutils-0.121
elfutils-0.122
elfutils-0.123
elfutils-0.124
elfutils-0.125
elfutils-0.126
elfutils-0.127
elfutils-0.128
elfutils-0.129
elfutils-0.130
elfutils-0.131
elfutils-0.132
elfutils-0.133
elfutils-0.134
elfutils-0.135
elfutils-0.136
elfutils-0.137
elfutils-0.138
elfutils-0.142
elfutils-0.143
elfutils-0.144
elfutils-0.145
elfutils-0.146
elfutils-0.147
elfutils-0.148
elfutils-0.149
elfutils-0.150
elfutils-0.151
elfutils-0.152
elfutils-0.153
elfutils-0.154
elfutils-0.155
elfutils-0.156
elfutils-0.157
elfutils-0.158
elfutils-0.159
elfutils-0.160
elfutils-0.161
elfutils-0.162
elfutils-0.163
elfutils-0.164
elfutils-0.165
elfutils-0.166
elfutils-0.167
elfutils-0.168
elfutils-0.169
elfutils-0.170
elfutils-0.171
elfutils-0.172
elfutils-0.173
elfutils-0.174
elfutils-0.175
elfutils-0.176
elfutils-0.177

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-21047.json"