HIGH
slock allows attackers to bypass the screen lock via vectors involving an invalid password hash, which triggers a NULL pointer dereference and crash
Published Feb 15, 2017
7.5
HIGHCVSS 3.0
EPSS 2.89%
Description
slock allows attackers to bypass the screen lock via vectors involving an invalid password hash, which triggers a NULL pointer dereference and crash.
Affected products
No data.
Configuration 2
OR
- 24
- 25
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.
No CVSS v3.1 score for this CVE.
7.5 HIGH NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
5.0 MEDIUM NVD
AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
2.89% 0.02893
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.02893
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 | 2.89% (0.02893) | 86.42th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.84% (0.02838) | 84.76th | v5 (v2026.06.15) |
| May 27, 2026 | 1.70% (0.01695) | 82.52th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.47% (0.00473) | 62.65th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.81% (0.00808) | 82.44th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.81% (0.00808) | 81.18th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.81% (0.00808) | 79.09th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
Weaknesses (1)
References (7)
- http://git.suckless.org/slock/commit/?id=d8bec0f6fdc8a246d78cb488a0068954b46fcb29 x_refsource_CONFIRMPatchVendor Advisory
- http://s1m0n.dft-labs.eu/files/slock/slock.txt x_refsource_MISCThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/08/18/22 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2016/08/18/24 mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/92546 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2FYPV6QQPPYBL3Z2BYNYEJB67FSC55OR/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RZPEJQNVODYSI4WQXM5GQKXRO7TPK2VG/ vendor-advisoryx_refsource_FEDORA
| Link | Providers | Tags |
|---|---|---|
| http://git.suckless.org/slock/commit/?id=d8bec0f6fdc8a246d78cb488a0068954b46fcb29 | x_refsource_CONFIRMPatchVendor Advisory | |
| http://s1m0n.dft-labs.eu/files/slock/slock.txt | x_refsource_MISCThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2016/08/18/22 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2016/08/18/24 | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/92546 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2FYPV6QQPPYBL3Z2BYNYEJB67FSC55OR/ | vendor-advisoryx_refsource_FEDORA | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RZPEJQNVODYSI4WQXM5GQKXRO7TPK2VG/ | vendor-advisoryx_refsource_FEDORA |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Feb 15, 2017
Updated Aug 6, 2024
Reserved Aug 18, 2016
Link CVE-2016-6866
CISA Vulnrichment
Updated n/a