CVE-2021-32556: canonical apport OS Command Injection
CVSS: 3.8v3.1LowModified
AliasesUBUNTU-CVE-2021-32556
Published 12-06-2021Last modified 16-09-2024
Vulnerability summary
CVE-2021-32556 is a low (CVSS 3.8) OS Command Injection vulnerability in canonical apport. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 25% of scored vulnerabilities.
CVSS score
3.8/10
010
Low · v3.1 (CVE.org)EPSS score
0.33%
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
- 12-06-2021PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
It was discovered that the get_modified_conffiles() function in backends/packaging-apt-dpkg.py allowed injecting modified package names in a manner that would confuse the dpkg(1) call.
CVSS metrics
4 scores · 3 sources · 2 versionsLow 3.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:NSources3 sources · 3.3–3.8
- OSV · UbuntuEcosystem advisory · calculated3.8LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
- NVDNIST3.3LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:NDiffers
Low 2.1Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.33%
Chance of exploitation in the next 30 days
Percentile
25%
Versus all other CVEs
30-day change
0.00 pp
From 0.33% on 20-09-2026
20-09-202620-10-2026
EPSS score0.33%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Canonical1 product
- apport≥ 2.14.1-0ubuntu3, < 2.14.1-0ubuntu3.29\+esm7 | ≥ 2.20.1, < 2.20.1-0ubuntu2.30\+esm1 | ≥ 2.20.9, < 2.20.9-0ubuntu7.24 | ≥ 2.20.11-0ubuntu27, < 2.20.11-0ubuntu27.18 | ≥ 2.20.11-0ubuntu50, < 2.20.11-0ubuntu50.7 | ≥ 2.20.11-0ubuntu65, < 2.20.11-0ubuntu65.1
Ubuntu1 product
- apport< 2.14.1-0ubuntu3.29+esm7 | < 2.20.1-0ubuntu2.30+esm1 | < 2.20.9-0ubuntu7.24 | < 2.20.11-0ubuntu27.18
2 vendors · 2 products