Information disclosure in Linux kernel - CVE-2018-20511

Vulnerability identifier: #VU16746

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-20511

CWE-ID: CWE-200

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local attacker to obtain potentially sensitive information.

The vulnerability exists due to an error in ipddp_ioctl function in drivers/net/appletalk/ipddp.c. A remote attacker can leverage CAP_NET_ADMIN to read the ipddp_route dev and next fields via an SIOCFINDIPDDPRT ioctl call.

Linux kernel
Ubuntu
linux-kvm (Ubuntu package)
linux-snapdragon (Ubuntu package)
linux-hwe (Ubuntu package)
linux-gcp (Ubuntu package)
linux-azure (Ubuntu package)
linux (Ubuntu package)
linux-raspi2 (Ubuntu package)
linux-oem (Ubuntu package)
linux-oracle (Ubuntu package)
linux-gke-4.15 (Ubuntu package)

Update tp version 4.18.11.

Linux kernel - update to 4.18.11
linux-kvm (Ubuntu package) - update to 4.15.0-1042.42
linux-snapdragon (Ubuntu package) - update to 4.15.0-1060.66
linux-hwe (Ubuntu package) - update to 4.15.0-58.64~16.04.1
linux-gcp (Ubuntu package) - addressed in versions 4.15.0-1040.42~16.04.1, 4.15.0-1040.42
linux-azure (Ubuntu package) - update to 4.15.0-1055.60
linux (Ubuntu package) - update to 4.15.0-58.64
linux-raspi2 (Ubuntu package) - update to 4.15.0-1043.46
linux-oem (Ubuntu package) - update to 4.15.0-1050.57
linux-oracle (Ubuntu package) - addressed in versions 4.15.0-1021.23~16.04.1, 4.15.0-1021.23
linux-gke-4.15 (Ubuntu package) - update to 4.15.0-1040.42

• https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.18.11

• Information disclosure in Linux kernel
• Ubuntu update for linux, linux-azure, linux-gcp and more