CVE-2021-3899: canonical ltd. apport
CVSS: 7.8v3.1HighAnalyzed
AliasesUBUNTU-CVE-2021-3899
Published 03-06-2024Last modified 19-08-2024
Vulnerability summary
CVE-2021-3899 is a high (CVSS 7.8) vulnerability in canonical ltd. apport. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.8% of scored vulnerabilities.
CVSS score
7.8/10
010
High · v3.1 (CVE.org)EPSS score
0.38%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 2 · Related 2Timeline
- 03-06-2024PublishedVulnerability first disclosed.
- 19-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 7.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.38%
Chance of exploitation in the next 30 days
Percentile
31%
Versus all other CVEs
30-day change
0.00 pp
From 0.38% on 18-09-2026
18-09-202618-10-2026
EPSS score0.38%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Canonical2 products
- apport< 2.21.0
- ubuntu_linuxEOL18.04 | 20.04 | 21.10 | 22.04
Canonical ltd.1 product
- apport< 2.21.0
Ubuntu1 product
- apportAll versions (No fix recorded) | < 2.20.1-0ubuntu2.30+esm4 | < 2.20.9-0ubuntu7.28 | < 2.20.11-0ubuntu27.24 | < 2.20.11-0ubuntu82.1
3 vendors · 4 products