CVE-2021-20285
Published: 26 March 2021
A flaw was found in upx canPack in p_lx_elf.cpp in UPX 3.96. This flaw allows attackers to cause a denial of service (SEGV or buffer overflow and application crash) or possibly have unspecified other impacts via a crafted ELF. The highest threat from this vulnerability is to system availability.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
upx-ucl Launchpad, Ubuntu, Debian |
bionic |
Needed
|
| focal |
Needed
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Ignored
(end of life)
|
|
| jammy |
Needed
|
|
| kinetic |
Ignored
(end of life, was needed)
|
|
| lunar |
Ignored
(end of life, was needed)
|
|
| mantic |
Needed
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Needed
|
|
|
Patches: upstream: https://github.com/upx/upx/commit/3781df9da23840e596d5e9e8493f22666802fe6c |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.6 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | Low |
| Integrity impact | Low |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:H |