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CVE-2017-17807
The KEYS subsystem in the Linux kernel before 4.14.6 omitted an access-control check when adding a key to the current task's "default…
Low3.3EPSS 0.44%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
The KEYS subsystem in the Linux kernel before 4.14.6 omitted an access-control check when adding a key to the current task's "default request-key keyring" via the request_key() system call, allowing a local user to use a sequence of crafted system calls to add keys to a keyring with only Search permission (not Write permission) to that keyring, related to construct_get_dest_keyring() in security/keys/request_key.c.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Low3.3 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
- EPSS (exploitation in 30 days)
- 0.44% · top 62% of all CVEs (4 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.3.
Weakness
Affected products
n/a
- affected n/a
References (15)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=4dca6ea1d9432052afb06baf2e3ae78188a4410b (opens in a new tab)x_refsource_CONFIRMx_transferred
- 102301 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- USN-3617-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3619-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- DSA-4082 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- USN-3617-3 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- [debian-lts-announce] 20180107 [SECURITY] [DLA 1232-1] linux security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- USN-3632-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3620-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://github.com/torvalds/linux/commit/4dca6ea1d9432052afb06baf2e3ae78188a4410b (opens in a new tab)x_refsource_CONFIRMx_transferred
- DSA-4073 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- USN-3617-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.6 (opens in a new tab)x_refsource_CONFIRMx_transferred
- USN-3620-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3619-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2017-17807)Record last updated .