CVE-2019-18660
What it is
The Linux kernel before 5.4.1 on powerpc allows Information Exposure because the Spectre-RSB mitigation is not in place for all applicable CPUs, aka CID-39e72bf96f58. This is related to arch/powerpc/kernel/entry_64.S and arch/powerpc/kernel/security.c.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure.
- Exploit odds
- 0.7% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.7% in the next 30 days (EPSS).
- Severity: 4.7 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.7% · EPSS, next 30 days
- Weakness
- CWE-200 · Information exposure
- Record status
- Modified
Affected
- Linux Kernel < 5.4.1
- Canonical Ubuntu Linux 14.04
- Canonical Ubuntu Linux 16.04
- Canonical Ubuntu Linux 18.04
- Canonical Ubuntu Linux 19.04
- Canonical Ubuntu Linux 19.10
- Fedoraproject Fedora 30
- Fedoraproject Fedora 31
Attack profile CVSS 3.1 · 4.7
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Raw vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2019-18660.md and follow it. Check whether this project is affected by CVE-2019-18660. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://www.openwall.com/lists/oss-security/2019/11/27/1
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.1
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=39e72bf96f5847ba87cc5bd7a3ce0fed813dc9ad
- https://www.openwall.com/lists/oss-security/2019/11/27/1
- http://www.openwall.com/lists/oss-security/2019/11/27/1
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.1
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=39e72bf96f5847ba87cc5bd7a3ce0fed813dc9ad
- https://www.openwall.com/lists/oss-security/2019/11/27/1
References
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
- http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- http://www.openwall.com/lists/oss-security/2019/11/27/1
- https://access.redhat.com/errata/RHSA-2020:0174
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.1
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=39e72bf96f5847ba87cc5bd7a3ce0fed813dc9ad
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYIFGYEDQXP5DVJQQUARQRK2PXKBKQGY/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YWWOOJKZ4NQYN4RMFIVJ3ZIXKJJI3MKP/
- https://seclists.org/bugtraq/2020/Jan/10
- https://security.netapp.com/advisory/ntap-20200103-0001/
- https://usn.ubuntu.com/4225-1/
- https://usn.ubuntu.com/4225-2/
- https://usn.ubuntu.com/4226-1/
- https://usn.ubuntu.com/4227-1/
- https://usn.ubuntu.com/4227-2/
- https://usn.ubuntu.com/4228-1/
- https://usn.ubuntu.com/4228-2/
- https://www.openwall.com/lists/oss-security/2019/11/27/1
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00029.html
- http://packetstormsecurity.com/files/155890/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html
- http://www.openwall.com/lists/oss-security/2019/11/27/1
- https://access.redhat.com/errata/RHSA-2020:0174
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.1
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=39e72bf96f5847ba87cc5bd7a3ce0fed813dc9ad
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LYIFGYEDQXP5DVJQQUARQRK2PXKBKQGY/