Vulnerability Name:

CVE-2017-5549 (CCN-121665)

Assigned:2017-02-06
Published:2017-02-06
Updated:2018-08-24
Summary:The klsi_105_get_line_state function in drivers/usb/serial/kl5kusb105.c in the Linux kernel before 4.9.5 places uninitialized heap-memory contents into a log entry upon a failure to read the line status, which allows local users to obtain sensitive information by reading the log.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
6.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
5.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): None
Availibility (A): None
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): None
Availibility (A): None
4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:C/I:N/A:N)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): Complete
Integrity (I): None
Availibility (A): None
Vulnerability Type:CWE-532
Vulnerability Consequences:Obtain Information
References:Source: MITRE
Type: CNA
CVE-2017-5549

Source: CCN
Type: Linux Kernel GIT Repository
USB: serial: kl5kusb105: fix line-state error handling

Source: CONFIRM
Type: Issue Tracking, Patch, Third Party Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=146cc8a17a3b4996f6805ee5c080e7101277c410

Source: DEBIAN
Type: UNKNOWN
DSA-3791

Source: CONFIRM
Type: Release Notes, Vendor Advisory
http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.5

Source: CCN
Type: oss-sec Mailing List, Fri, 20 Jan 2017 22:24:00 -0500
Re: CVE REQUEST: linux kernel: process with pgid zero able to crash kernel

Source: MLIST
Type: Mailing List, Patch, Third Party Advisory
[oss-security] 20170120 Re: CVE REQUEST: linux kernel: process with pgid zero able to crash kernel

Source: BID
Type: Third Party Advisory, VDB Entry
95715

Source: CCN
Type: BID-95715
Linux Kernel CVE-2017-5549 Local Denial of Service Vulnerability

Source: CONFIRM
Type: Issue Tracking, Patch
https://bugzilla.redhat.com/show_bug.cgi?id=1416114

Source: XF
Type: UNKNOWN
linux-kernel-cve20175549-info-disc(121665)

Source: CONFIRM
Type: Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/146cc8a17a3b4996f6805ee5c080e7101277c410

Source: UBUNTU
Type: UNKNOWN
USN-3754-1

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version <= 4.9.4)

    • Configuration CCN 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.cisecurity:def:1938
    P
    		DSA-3791-1 -- linux -- security update
    2017-03-10
    oval:com.ubuntu.cosmic:def:201755490000000
    V
    		CVE-2017-5549 on Ubuntu 18.10 (cosmic) - low.
    2017-02-06
    oval:com.ubuntu.artful:def:20175549000
    V
    		CVE-2017-5549 on Ubuntu 17.10 (artful) - low.
    2017-02-06
    oval:com.ubuntu.trusty:def:20175549000
    V
    		CVE-2017-5549 on Ubuntu 14.04 LTS (trusty) - low.
    2017-02-06
    oval:com.ubuntu.bionic:def:201755490000000
    V
    		CVE-2017-5549 on Ubuntu 18.04 LTS (bionic) - low.
    2017-02-06
    oval:com.ubuntu.bionic:def:20175549000
    V
    		CVE-2017-5549 on Ubuntu 18.04 LTS (bionic) - low.
    2017-02-06
    oval:com.ubuntu.xenial:def:20175549000
    V
    		CVE-2017-5549 on Ubuntu 16.04 LTS (xenial) - low.
    2017-02-06
    oval:com.ubuntu.xenial:def:201755490000000
    V
    		CVE-2017-5549 on Ubuntu 16.04 LTS (xenial) - low.
    2017-02-06
    oval:com.ubuntu.cosmic:def:20175549000
    V
    		CVE-2017-5549 on Ubuntu 18.10 (cosmic) - low.
    2017-02-06
    oval:com.ubuntu.precise:def:20175549000
    V
    		CVE-2017-5549 on Ubuntu 12.04 LTS (precise) - low.
    2017-02-06
    BACK
    linux linux kernel *
    linux linux kernel *