Information disclosure in Linux kernel - CVE-2019-16714

Vulnerability identifier: #VU21314

CSH Severity: Medium

CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2019-16714

CWE-ID: CWE-200

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to "tos" and "flags" fields are not initialized in "rds6_inc_info_copy" in the "net/rds/recv.c" file. A remote attacker can gain unauthorized access to sensitive information from kernel stack memory.

Linux kernel
Ubuntu
linux (Ubuntu package)
linux-aws (Ubuntu package)
linux-gcp (Ubuntu package)
linux-azure (Ubuntu package)
linux-kvm (Ubuntu package)
linux-snapdragon (Ubuntu package)

Install updates from vendor's website.

Linux kernel - update to 5.2.14
linux (Ubuntu package) - update to 5.0.0-32.34
linux-aws (Ubuntu package) - update to 5.0.0-1019.21
linux-gcp (Ubuntu package) - update to 5.0.0-1021.21
linux-azure (Ubuntu package) - update to 5.0.0-1023.24
linux-kvm (Ubuntu package) - update to 5.0.0-1020.21
linux-snapdragon (Ubuntu package) - update to 5.0.0-1024.25

• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.14
• https://github.com/torvalds/linux/commit/7d0a06586b2686ba80c4a2da5f91cb10ffbea736

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