CVEvulnerability
CVE-2018-15572
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2018-08-20
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 6.5 MEDIUM — CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 2.1 LOW — AV:L/AC:L/Au:N/C:P/I:N/A:N
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 configurations
• debian debian linux 8.0
• debian debian linux 9.0
• canonical ubuntu linux 12.04
• canonical ubuntu linux 14.04
• canonical ubuntu linux 16.04
• canonical ubuntu linux 18.04
• linux linux kernel (< 4.18.1)
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdf82a7856b32d905c39afc85e34364491e46346 Mitigation, Patch, Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1 Mitigation, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/fdf82a7856b32d905c39afc85e34364491e46346 Mitigation, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html Mailing List, Third Party Advisory
- https://usn.ubuntu.com/3775-1/ Third Party Advisory
- https://usn.ubuntu.com/3775-2/ Third Party Advisory
- https://usn.ubuntu.com/3776-1/ Third Party Advisory
- https://usn.ubuntu.com/3776-2/ Third Party Advisory
- https://usn.ubuntu.com/3777-1/ Third Party Advisory
- https://usn.ubuntu.com/3777-2/ Third Party Advisory
- https://usn.ubuntu.com/3777-3/ Third Party Advisory
- https://www.debian.org/security/2018/dsa-4308 Third Party Advisory
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fdf82a7856b32d905c39afc85e34364491e46346 Mitigation, Patch, Vendor Advisory
- https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1 Mitigation, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/fdf82a7856b32d905c39afc85e34364491e46346 Mitigation, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html Mailing List, Third Party Advisory
- https://usn.ubuntu.com/3775-1/ Third Party Advisory
- https://usn.ubuntu.com/3775-2/ Third Party Advisory
- https://usn.ubuntu.com/3776-1/ Third Party Advisory
- https://usn.ubuntu.com/3776-2/ Third Party Advisory
- https://usn.ubuntu.com/3777-1/ Third Party Advisory
- https://usn.ubuntu.com/3777-2/ Third Party Advisory
- https://usn.ubuntu.com/3777-3/ Third Party Advisory
- https://www.debian.org/security/2018/dsa-4308 Third Party Advisory