SB2016120912 - Fedora 23 update for kernel

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Main Vulnerability Database SB2016120912

SB2016120912 - Fedora 23 update for kernel

Published: December 9, 2016 Updated: April 24, 2025

Security Bulletin ID SB2016120912
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2016-8655)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear


The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to a use-after-free error within the packet_setsockopt() and packet_set_ring() functions in net/packet/af_packet.c. A local user can execute arbitrary code.


2) Buffer overflow (CVE-ID: CVE-2016-9793)

CWE-ID: CWE-119 - Memory corruption

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear


The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to memory corruption within the sock_setsockopt() and max_t() functions in net/core/sock.c. A local user can execute arbitrary code.


3) Use-after-free (CVE-ID: CVE-2016-9576)

CWE-ID: CWE-416 - Use After Free

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a local user to execute arbitrary code.

The vulnerability exists due to a use-after-free error within the blk_rq_map_user_iov() function in block/blk-map.c. A local user can execute arbitrary code.


Remediation

Install update from vendor's website.

References