MGASA-2018-0296

Advisory lineage Upstream: 3 Downstream: 0
Published: 24 Jun 2018, 22:02
Last modified:16 Apr 2026, 06:24

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

24 Jun 2018, 22:02
Published
Vulnerability first disclosed
16 Apr 2026, 06:24
Last Modified
Vulnerability information updated

Description

Updated kernel packages fix security vulnerabilities This kernel update is based on the upstream 4.14.50 and fixes at least the following security issues: In the function sbusfb_ioctl_helper() in drivers/video/fbdev/sbuslib.c in the Linux kernel through 4.15, an integer signedness error allows arbitrary information leakage for the FBIOPUTCMAP_SPARC and FBIOGETCMAP_SPARC commands (CVE-2018-6412). The kvm functions that were used in the emulation of fxrstor, fxsave, sgdt and sidt were originally meant for task switching, and as such they did not check privilege levels. This allowed guest userspace to guest kernel write (CVE-2018-10853). In arch/x86/kvm/vmx.c in the Linux kernel before 4.17.2, when nested virtualization is used, local attackers could cause L1 KVM guests to VMEXIT, potentially allowing privilege escalations and denial of service attacks due to lack of checking of CPL (CVE-2018-12904). WireGuard has been updated to 0.0.20180613. For other fixes in this update, see the referenced changelogs.

Affected Systems

  • mageia•kernel

    < 4.14.50-2.mga6

  • mageia•kernel-userspace-headers

    < 4.14.50-2.mga6

  • mageia•kmod-vboxadditions

    < 5.2.12-6.mga6

  • mageia•kmod-virtualbox

    < 5.2.12-6.mga6

  • mageia•kmod-xtables-addons

    < 2.13-42.mga6

  • mageia•wireguard-tools

    < 0.0.20180613-1.mga6

References (8)