Vulnerability · Published Jun 3, 2024 · Assigned by canonical
CVE-2021-3899
High 7.8
In plain English
A high-severity security flaw in Apport from Canonical Ltd.. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.4%top 67.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
There is a race condition in the 'replaced executable' detection that, with the correct local configuration, allow an attacker to execute arbitrary code as root.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | apport | 2.20.11-0ubuntu82.1 | USN-5427-1 |
| Ubuntu:22.04:LTS | apport | 2.20.11-0ubuntu82.1 | UBUNTU-CVE-2021-3899 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Canonical Ltd. | Apport | 0 – before 2.21.0 |
Weakness: CWE-367 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1948376 issue-tracking
- https://ubuntu.com/security/notices/USN-5427-1 vendor-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-3899 issue-tracking