Vulnerability Details : CVE-2018-15594
arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests.
Vulnerability category: Information leak
Products affected by CVE-2018-15594
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-15594
0.02%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 3 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-15594
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
2.1
|
LOW | AV:L/AC:L/Au:N/C:P/I:N/A:N |
3.9
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2018-15594
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-15594
-
https://www.debian.org/security/2018/dsa-4308
Debian -- Security Information -- DSA-4308-1 linuxThird Party Advisory
-
https://usn.ubuntu.com/3775-1/
USN-3775-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://usn.ubuntu.com/3777-3/
USN-3777-3: Linux kernel (Azure) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00043.html
[security-announce] openSUSE-SU-2019:1407-1: important: Security update
-
https://usn.ubuntu.com/3777-2/
USN-3777-2: Linux kernel (HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html
[SECURITY] [DLA 1531-1] linux-4.9 security updateMailing List;Third Party Advisory
-
http://www.securitytracker.com/id/1041601
Linux Kernel paravirt_patch_call Indirect Call Processing Lets Local Users View Portions of System Memory for Paravirtualized Guests - SecurityTrackerThird Party Advisory;VDB Entry
-
https://github.com/torvalds/linux/commit/5800dc5c19f34e6e03b5adab1282535cb102fafd
x86/paravirt: Fix spectre-v2 mitigations for paravirt guests · torvalds/linux@5800dc5 · GitHubMitigation;Patch;Third Party Advisory
-
https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.1
Release Notes;Vendor Advisory
-
http://www.securityfocus.com/bid/105120
Linux Kernel 'arch/x86/kernel/paravirt.c' Local Security Bypass VulnerabilityThird Party Advisory;VDB Entry
-
https://usn.ubuntu.com/3776-1/
USN-3776-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
-
https://usn.ubuntu.com/3777-1/
USN-3777-1: Linux kernel vulnerabilities | Ubuntu security noticesThird Party Advisory
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https://access.redhat.com/errata/RHSA-2019:2029
RHSA-2019:2029 - Security Advisory - Red Hat Customer Portal
-
https://usn.ubuntu.com/3776-2/
USN-3776-2: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
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http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5800dc5c19f34e6e03b5adab1282535cb102fafd
kernel/git/torvalds/linux.git - Linux kernel source treeMitigation;Patch;Vendor Advisory
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https://twitter.com/grsecurity/status/1029324426142199808
grsecurity on Twitter: "This should get a CVE: https://t.co/xr3icM7K2n"Third Party Advisory
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https://access.redhat.com/errata/RHSA-2019:2043
RHSA-2019:2043 - Security Advisory - Red Hat Customer Portal
-
https://usn.ubuntu.com/3775-2/
USN-3775-2: Linux kernel (Trusty HWE) vulnerabilities | Ubuntu security noticesThird Party Advisory
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