SB2015110514 - Ubuntu update for linux-lts-utopic
Published: November 5, 2015 Updated: October 31, 2026
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 vulnerabilities.
1) Input validation error (CVE-ID: CVE-2015-0272)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
GNOME NetworkManager allows remote attackers to cause a denial of service (IPv6 traffic disruption) via a crafted MTU value in an IPv6 Router Advertisement (RA) message, a different vulnerability than CVE-2015-8215.
2) Path traversal (CVE-ID: CVE-2015-2925)
CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVSSv4: 8.5 [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]
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) NULL pointer dereference (CVE-ID: CVE-2015-5257)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
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.
4) Buffer overflow (CVE-ID: CVE-2015-5283)
CWE-ID: CWE-119 - Memory corruption
CVSSv4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the sctp_v4_del_protocol(), sctp_net_init(), sctp_net_exit(), sctp_init() and sctp_exit() functions in net/sctp/protocol.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.