apport read_file() function could follow maliciously constructed symbolic links
Published Jun 12, 2021
7.3
HIGHCVSS 3.1
EPSS 0.29%
Description
It was discovered that read_file() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the openjdk-14 package apport hooks, it could expose private data to other local users.
Affected products
-
- Version 2.14.1-0ubuntu3StatusaffectedConstraints<2.14.1-0ubuntu3.29+esm7
- Version 2.20.1StatusaffectedConstraints<2.20.1-0ubuntu2.30+esm1
- Version 2.20.11-0ubuntu27StatusaffectedConstraints<2.20.11-0ubuntu27.18
- Version 2.20.11-0ubuntu50StatusaffectedConstraints<2.20.11-0ubuntu50.7
- Version 2.20.11-0ubuntu65StatusaffectedConstraints<2.20.11-0ubuntu65.1
- Version 2.20.9StatusaffectedConstraints<2.20.9-0ubuntu7.24
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Canonical | Apport | n/a |
|
- 18.04
- 20.04
- 20.10
- 21.04
- 21.10
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
1 other source (CVE.org) ▾
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.29% (0.00289) | 19.51th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.29% (0.00289) | 20.39th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.04% (0.00043) | 10.15th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.40% (0.01404) | 49.02th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.98% (0.00985) | 27.20th | v5 (v2026.06.15) |
| Jun 12, 2021 | 0.22% (0.00221) | 0.00th | v1 |
References (1)
- https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1917904 x_refsource_MISCIssue TrackingVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://bugs.launchpad.net/ubuntu/+source/apport/+bug/1917904 | x_refsource_MISCIssue TrackingVendor Advisory |
Change history (0)
No recorded changes yet.