The apt package in Debian jessie before 1.0.9.8.4, in Debian unstable before 1.4~beta2, in Ubuntu 14.04 LTS before 1.0.1ubuntu2.17, in Ubuntu 16.04 LTS before 1.2.15ubuntu0.2, and in Ubuntu 16.10 before 1.3.2ubuntu0.1 allows man-in-the-middle attackers to bypass a repository-signing protection mechanism by leveraging improper error handling when validating InRelease file signatures
Published Dec 5, 2017
5.9
MEDIUMCVSS 3.1
EPSS 7.25%
Description
The apt package in Debian jessie before 1.0.9.8.4, in Debian unstable before 1.4~beta2, in Ubuntu 14.04 LTS before 1.0.1ubuntu2.17, in Ubuntu 16.04 LTS before 1.2.15ubuntu0.2, and in Ubuntu 16.10 before 1.3.2ubuntu0.1 allows man-in-the-middle attackers to bypass a repository-signing protection mechanism by leveraging improper error handling when validating InRelease file signatures.
Affected products
No data.
Configuration 1
- < 1.0.9.8.4
Running on/with
- 8.0
Configuration 2
- 14.04
- 16.04
- 16.10
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:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 7.25% (0.07248) | 94.15th | v5 (v2026.06.15) |
| Jun 15, 2026 | 7.25% (0.07248) | 93.52th | v5 (v2026.06.15) |
| Mar 30, 2025 | 5.96% (0.05955) | 89.70th | v4 (v2025.03.14) |
| Mar 29, 2025 | 11.73% (0.11731) | 89.44th | v4 (v2025.03.14) |
| Mar 17, 2025 | 5.96% (0.05955) | 89.96th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.36% (0.01357) | 86.77th | v3 (v2023.03.01) |
| May 22, 2024 | 1.36% (0.01357) | 86.20th | v3 (v2023.03.01) |
| Apr 28, 2023 | 1.36% (0.01357) | 84.19th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.40% (0.01396) | 84.30th | v3 (v2023.03.01) |
| Mar 6, 2023 | 10.21% (0.10212) | 94.60th | v2 (v2022.01.01) |
| Apr 1, 2022 | 10.21% (0.10212) | 94.14th | v2 (v2022.01.01) |
| Feb 4, 2022 | 10.21% (0.10212) | 87.64th | v2 (v2022.01.01) |
References (6)
- http://packetstormsecurity.com/files/140145/apt-Repository-Signing-Bypass.html x_refsource_MISCIssue TrackingThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-3156-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1020 x_refsource_MISCExploitIssue TrackingThird Party Advisory
- https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1647467 x_refsource_CONFIRMExploitIssue TrackingThird Party Advisory
- https://www.debian.org/security/2016/dsa-3733 vendor-advisoryx_refsource_DEBIANIssue TrackingVendor Advisory
- https://www.exploit-db.com/exploits/40916/ exploitx_refsource_EXPLOIT-DBIssue TrackingThird Party AdvisoryVDB Entry
| Link | Providers | Tags |
|---|---|---|
| http://packetstormsecurity.com/files/140145/apt-Repository-Signing-Bypass.html | x_refsource_MISCIssue TrackingThird Party AdvisoryVDB Entry | |
| http://www.ubuntu.com/usn/USN-3156-1 | vendor-advisoryx_refsource_UBUNTUThird Party Advisory | |
| https://bugs.chromium.org/p/project-zero/issues/detail?id=1020 | x_refsource_MISCExploitIssue TrackingThird Party Advisory | |
| https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1647467 | x_refsource_CONFIRMExploitIssue TrackingThird Party Advisory | |
| https://www.debian.org/security/2016/dsa-3733 | vendor-advisoryx_refsource_DEBIANIssue TrackingVendor Advisory | |
| https://www.exploit-db.com/exploits/40916/ | exploitx_refsource_EXPLOIT-DBIssue TrackingThird Party AdvisoryVDB Entry |
Change history (0)
No recorded changes yet.