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CVE-2018-19854
An issue was discovered in the Linux kernel before 4.19.3. crypto_report_one() and related functions in crypto/crypto_user.c (the crypto…
Medium4.7EPSS 0.45%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
An issue was discovered in the Linux kernel before 4.19.3. crypto_report_one() and related functions in crypto/crypto_user.c (the crypto user configuration API) do not fully initialize structures that are copied to userspace, potentially leaking sensitive memory to user programs. NOTE: this is a CVE-2013-2547 regression but with easier exploitability because the attacker does not need a capability (however, the system must have the CONFIG_CRYPTO_USER kconfig option).
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium4.7 | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |
- EPSS (exploitation in 30 days)
- 0.45% · top 61% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.7.
Weakness
Affected products
n/a
- affected n/a
References (10)
- https://github.com/torvalds/linux/commit/f43f39958beb206b53292801e216d9b8a660f087 (opens in a new tab)x_refsource_MISCx_transferred
- USN-3872-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3901-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3878-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- USN-3878-2 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f43f39958beb206b53292801e216d9b8a660f087 (opens in a new tab)x_refsource_MISCx_transferred
- https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.3 (opens in a new tab)x_refsource_MISCx_transferred
- USN-3901-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- RHSA-2019:3309 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_transferred
- RHSA-2019:3517 (opens in a new tab)vendor-advisoryx_refsource_REDHATx_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)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2018-19854)Record last updated .