CVE-2021-43312

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-43312
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-43312.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-43312
Downstream
Related
Published
2023-03-24T20:15:08Z
Modified
2025-07-29T10:10:07.320467Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A heap-based buffer overflow was discovered in upx, during the variable 'bucket' points to an inaccessible address. The issue is being triggered in the function PackLinuxElf64::invertptdynamic at plxelf.cpp:5239.

References

Affected packages

Debian:11 / upx-ucl

Package

Name
upx-ucl
Purl
pkg:deb/debian/upx-ucl?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.96-2
3.96-2+deb11u1
3.96-3

4.*

4.2.2-1
4.2.2-2
4.2.2-3~bpo12+1
4.2.2-3
4.2.4-1
4.2.4-1.1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Debian:13 / upx-ucl

Package

Name
upx-ucl
Purl
pkg:deb/debian/upx-ucl?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.2.2-1

Ecosystem specific 

{
    "urgency": "unimportant"
}

Git / github.com/upx/upx

Affected ranges

Type
GIT
Repo
https://github.com/upx/upx
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
69ca635c4c0ba474e9ca583dbb42e3d028c4533a

Affected versions

v1.*

v1.10
v1.11
v1.90
v1.91
v1.92
v1.93
v1.94
v1.95
v1.96

v2.*

v2.00
v2.01
v2.90
v2.91
v2.92
v2.93

v3.*

v3.00
v3.01
v3.02
v3.03
v3.04
v3.05
v3.06
v3.07
v3.08
v3.09
v3.91
v3.92
v3.93
v3.94
v3.95
v3.96
v3.99