software-properties incorrectly validated TLS certificates
Published Dec 2, 2020
7.4
HIGHCVSS 3.1
EPSS 0.61%
Description
software-properties was vulnerable to a person-in-the-middle attack due to incorrect TLS certificate validation in softwareproperties/ppa.py. software-properties didn't check TLS certificates under python2 and only checked certificates under python3 if a valid certificate bundle was provided. Fixed in software-properties version 0.92.
Affected products
-
- Version 0.92StatusaffectedConstraints<0.92
- 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 | Software-Properties | n/a |
|
- < 0.92
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:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
1 other source (CVE.org) ▾
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:P/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 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.61% (0.00615) | 47.52th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.61% (0.00607) | 44.19th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.12% (0.00123) | 28.98th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.21% (0.00215) | 60.45th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.14% (0.00136) | 47.75th | v3 (v2023.03.01) |
| Aug 17, 2023 | 0.14% (0.00142) | 49.26th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.13% (0.00131) | 46.27th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
References (2)
- https://code.launchpad.net/~cyphermox/software-properties/lp1036839/+merge/119753 vendor-advisoryx_refsource_UBUNTUPatchVendor Advisory
- https://launchpad.net/bugs/1036839 vendor-advisoryx_refsource_UBUNTUExploitVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://code.launchpad.net/~cyphermox/software-properties/lp1036839/+merge/119753 | vendor-advisoryx_refsource_UBUNTUPatchVendor Advisory | |
| https://launchpad.net/bugs/1036839 | vendor-advisoryx_refsource_UBUNTUExploitVendor Advisory |
Change history (0)
No recorded changes yet.