CVE-2018-15572
N/A
Published: August 20, 2018 at 02:00 AM UTC
Updated: June 17, 2026 at 01:42 AM UTC
3 products affected across 3 vendorsLinux KernelDebian LinuxUbuntu Linux
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Severity
N/A
Exploit prediction
EPSS 0.5%
Description
The spectre_v2_select_mitigation function in arch/x86/kernel/cpu/bugs.c in the Linux kernel before 4.18.1 does not always fill RSB upon a context switch, which makes it easier for attackers to conduct userspace-userspace spectreRSB attacks.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Ubuntu Linux· Canonicalrubygems
95%Debian Linux· Debiandrupal
95%v < 4.18.1
Affected range stops below 4.18.1, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdf82a7856b32d905c39afc85e34364491e46346
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1
- https://github.com/torvalds/linux/commit/fdf82a7856b32d905c39afc85e34364491e46346
- https://usn.ubuntu.com/3775-1/
- https://usn.ubuntu.com/3775-2/
References (12)
x_refsource_MISCMitigationPatchVendor Advisory
Source: [email protected]
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdf82a7856b32d905c39afc85e34364491e46346x_refsource_MISCMitigationPatchVendor Advisory
Source: [email protected]
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1x_refsource_MISCMitigationPatchThird Party Advisory
Source: [email protected]
https://github.com/torvalds/linux/commit/fdf82a7856b32d905c39afc85e34364491e46346Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2018/10/msg00003.htmlVendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/3775-1/Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/3775-2/Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/3776-1/Vendor Advisoryx_refsource_UBUNTUThird Party Advisory
Source: [email protected]
https://usn.ubuntu.com/3776-2/Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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