SB2019072614 - Buffer overflow in Linux kernel
Published: July 26, 2019 Updated: July 31, 2019
Security Bulletin ID
SB2019072614
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Buffer overflow (CVE-ID: CVE-2018-20854)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: 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]
The vulnerability allows a local attacker to access sensitive information on a targeted system.
The vulnerability exists due to improper memory operations performed by the "phy-ocelot-serdes.c" file. A local authenticated attacker can make a malicious request, cause an off-by-one out-of-bounds read condition and access sensitive information on the targeted system.
Remediation
Install update from vendor's website.