Out-of-bounds read in Linux kernel - CVE-2017-5897

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Main Vulnerability Database Vulnerabilities #VU5675

Out-of-bounds read in Linux kernel - CVE-2017-5897

Published: February 9, 2017 / Updated: February 10, 2017


Vulnerability identifier: #VU5675
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2017-5897
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel

Detailed vulnerability description

The vulnerability allows a remote unauthenticated attacker to obtain potentially sensitive information.

The vulnerability exists due to boundary error when processing GRE packets in ip6gre_err() function in net/ipv6/ip6_gre.c. A remote attacker can send specially crafted GRE packets to IPv6 interface, trigger out-of-bounds read and obtain memory contents or cause denial of service.

Successful exploitation of the vulnerability may allow an attacker to gain access to potentially sensitive information, stored in RAM, such as passwords, encryption keys, etc.



How to mitigate CVE-2017-5897


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