SB2015100512 - Fedora 21 update for kernel
Published: October 5, 2015 Updated: April 24, 2025
Security Bulletin ID
SB2015100512
Severity
Low
Patch available
YES
Number of vulnerabilities
3
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) NULL pointer dereference (CVE-ID: CVE-2015-5257)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the whiteheat_firmware_download() and whiteheat_firmware_attach() functions in drivers/usb/serial/whiteheat.c. A local user can perform a denial of service (DoS) attack.
2) Path traversal (CVE-ID: CVE-2015-2925)
The vulnerability allows a local attacker to gain elevated privileges on the target system.The weakness exists in the prepend_path function in fs/dcache.c due to improper handling of rename actions inside a bind mount. A local attacker can bypass an intended container protection mechanism by renaming a directory, related to a "double-chroot attack" and gain root privileges.
3) Race condition (CVE-ID: CVE-2015-7613)
The vulnerability allows a local attacker to gain elevated privileges on the target system.The weakness exists in the IPC object implementation due to race condition. A local attacker can trigger an ipc_addid call that leads to uid and gid comparisons against uninitialized data, related to msg.c, shm.c, and util.c and gain root privileges.
Remediation
Install update from vendor's website.