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 user configuration API) do not fully initialize structures that are copied to userspace, potentially leaking…
Does this matter?
Lower severity and a low EPSS score (0.45%). Track it; it rarely justifies an emergency change on its own.
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).
- CVSS 3.0
- 4.7 MEDIUMCVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.45% probability · 39th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- linux/linux kernel · canonical/ubuntu linux
- Source
- cve@mitre.org
EPSS 0.4% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f43f39958beb206b53292801e216d9b8a660f087Patch, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2019:3309
- https://access.redhat.com/errata/RHSA-2019:3517
- https://github.com/torvalds/linux/commit/f43f39958beb206b53292801e216d9b8a660f087Patch, Third Party Advisory
- https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.3Vendor Advisory
- https://usn.ubuntu.com/3872-1/Third Party Advisory
- https://usn.ubuntu.com/3878-1/Third Party Advisory
- https://usn.ubuntu.com/3878-2/Third Party Advisory
- https://usn.ubuntu.com/3901-1/Third Party Advisory
- https://usn.ubuntu.com/3901-2/Third Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f43f39958beb206b53292801e216d9b8a660f087Patch, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2019:3309
- https://access.redhat.com/errata/RHSA-2019:3517
- https://github.com/torvalds/linux/commit/f43f39958beb206b53292801e216d9b8a660f087Patch, Third Party Advisory
- https://kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.3Vendor Advisory
- https://usn.ubuntu.com/3872-1/Third Party Advisory
- https://usn.ubuntu.com/3878-1/Third Party Advisory
- https://usn.ubuntu.com/3878-2/Third Party Advisory
- https://usn.ubuntu.com/3901-1/Third Party Advisory
- https://usn.ubuntu.com/3901-2/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.