SB2017052613 - Fedora 25 update for kernel
Published: May 26, 2017 Updated: April 24, 2025
Security Bulletin ID
SB2017052613
Severity
Medium
Patch available
YES
Number of vulnerabilities
5
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Denial of service (CVE-ID: CVE-2017-9077)
The vulnerability allows a local attacker to cause DoS condition on the target system.The weakness exists due to an error in the tcp_v6_syn_recv_sock function in net/ipv6/tcp_ipv6.c. A local attacker can use specially crafted system calls to cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
2) Denial of service (CVE-ID: CVE-2017-9076)
The vulnerability allows a local attacker to cause DoS condition on the target system.The weakness exists due to an error in the dccp_v6_request_recv_sock function in net/dccp/ipv6.c.A local attacker can use specially crafted system calls and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
3) Denial of service (CVE-ID: CVE-2017-9075)
The vulnerability allows a local attacker to cause DoS condition on the target system.The weakness exists due to an error in sctp_v6_create_accept_sk function in net/sctp/ipv6.c.A local attacker can use specially crafted system calls and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
4) Out-of-bounds read (CVE-ID: CVE-2017-9074)
The vulnerability allows a local attacker to cause DoS condition on the target system.The weakness exists due to the the failure to consider that the nexthdr field may be associated with an invalid option by the IPv6 fragmentation implementation. A local attacker can use a specially-crafted socket or system call to trigger out-of-bounds read and cause the system to crash.
Successful exploitation of the vulnerability results in denial of service.
5) Double free error (CVE-ID: CVE-2017-8890)
The vulnerability allows a remote attacker to perform a denial of service attack.The inet_csk_clone_lock function in net/ipv4/inet_connection_sock.c in the Linux kernel through 4.10.15 allows attackers to cause a denial of service (double free) or possibly have unspecified other impact by leveraging use of the accept system call.
Remediation
Install update from vendor's website.