VDB
CVE-2021-30500
CVE-2021-30500
PUBLISHED
CVSS 7.800000190734863 HIGH
Null pointer dereference was found in upx PackLinuxElf::canUnpack() in p_lx_elf.cpp,in version UPX 4.0.0. That allow attackers to execute arbitrary code and cause a denial of service via a crafted file.
EPSS 1.23% · 66.8th percentile
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
1.23%
66.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | upx-ucl | 0, 3.91-1 |
| Ubuntu:24.04:LTS | upx-ucl | 0, 3.96-3, 4.2.2-3 |
| Ubuntu:18.04:LTS | upx-ucl | 0, 3.94-4, 3.94-3 |
| Ubuntu:22.04:LTS | upx-ucl | 3.96-3, 0, 3.96-2 |
| Ubuntu:25.10 | upx-ucl | 4.2.4-1, 4.2.4-1.1, 0 |
| Ubuntu:20.04:LTS | upx-ucl | 0, 3.95-2, 3.95-2build1 |
Timeline
- May 26, 2021 CVE Published
- May 27, 2021 EPSS Score
- Jul 29, 2021 EPSS Score
- Sep 29, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Jan 30, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Jun 1, 2022 EPSS Score
- Oct 3, 2022 EPSS Score
- Dec 4, 2022 EPSS Score
- Feb 3, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-30500 third-party-advisory
- https://github.com/upx/upx/issues/485 third-party-advisory
- https://github.com/upx/upx/commit/90279abdfcd235172eab99651043051188938dcc third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-30500 third-party-advisory