Vulnerability Name:

CVE-2011-5321 (CCN-101588)

Assigned:2011-10-12
Published:2011-10-12
Updated:2018-01-05
Summary:The tty_open function in drivers/tty/tty_io.c in the Linux kernel before 3.1.1 mishandles a driver-lookup failure, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via crafted access to a device file under the /dev/pts directory.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
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): None
Integrity (I): None
Availibility (A): High
6.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
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): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:4.9 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
3.7 Low (Temporal CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
4.7 Medium (CCN CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C)
3.5 Low (CCN Temporal CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
4.7 Medium (REDHAT CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C)
3.5 Low (REDHAT Temporal CVSS v2 Vector: AV:L/AC:M/Au:N/C:N/I:N/A:C/E:U/RL:OF/RC:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-Other
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2011-5321

Source: CONFIRM
Type: Vendor Advisory
http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c290f8358acaeffd8e0c551ddcc24d1206143376

Source: REDHAT
Type: UNKNOWN
RHSA-2015:1221

Source: CCN
Type: oss-security Mailing List, Fri, 13 Mar 2015 19:24:20 -0400 (EDT)
Re: CVE request: Linux kernel: tty: kobject reference leakage in tty_open

Source: CONFIRM
Type: UNKNOWN
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1.1

Source: MLIST
Type: UNKNOWN
[oss-security] 20150313 Re: CVE request: Linux kernel: tty: kobject reference leakage in tty_open

Source: CONFIRM
Type: UNKNOWN
https://bugzilla.redhat.com/show_bug.cgi?id=1201887

Source: XF
Type: UNKNOWN
linux-kernel-cve20115321-dos(101588)

Source: CCN
Type: Linux Kernel GIT Repository
TTY: drop driver reference in tty_open fail path

Source: CONFIRM
Type: Vendor Advisory
https://github.com/torvalds/linux/commit/c290f8358acaeffd8e0c551ddcc24d1206143376

Vulnerable Configuration:Configuration 1:
  • cpe:/o:linux:linux_kernel:*:*:*:*:*:*:*:* (Version <= 3.1)

    • Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:6:*:*:*:*:*:*:*

    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:6::client:*:*:*:*:*

    • Configuration RedHat 3:
  • cpe:/o:redhat:enterprise_linux:6::computenode:*:*:*:*:*

    • Configuration RedHat 4:
  • cpe:/o:redhat:enterprise_linux:6::server:*:*:*:*:*

    • Configuration RedHat 5:
  • cpe:/o:redhat:enterprise_linux:6::workstation:*:*:*:*:*

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

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20115321
    V
    		CVE-2011-5321
    2022-05-20
    oval:org.opensuse.security:def:33110
    P
    		Security update for MozillaFirefox (Important) (in QA)
    2022-01-14
    oval:org.opensuse.security:def:33061
    P
    		Security update for glib-networking (Important)
    2021-12-13
    oval:org.opensuse.security:def:33004
    P
    		Security update for transfig (Moderate)
    2021-09-16
    oval:org.opensuse.security:def:33893
    P
    		Security update for qemu (Important)
    2021-04-16
    oval:org.opensuse.security:def:28964
    P
    		Security update for MozillaFirefox (Important)
    2021-03-31
    oval:org.opensuse.security:def:28671
    P
    		Security update for Mozilla Firefox
    2020-12-01
    oval:org.opensuse.security:def:32386
    P
    		Security update for tomcat6 (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:29805
    P
    		Security update for ipsec-tools (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:28812
    P
    		Security update for postgresql91 (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:32475
    P
    		Security update for xscreensaver (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:28375
    P
    		Security update for quagga (Low)
    2020-12-01
    oval:org.opensuse.security:def:33172
    P
    		libpng12-0 on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:29018
    P
    		Security update for lighttpd (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:32704
    P
    		libapr1 on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:28387
    P
    		Security update for rubygem-rack-1_4 (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:33854
    P
    		Security update for inn
    2020-12-01
    oval:org.opensuse.security:def:29106
    P
    		Security update for java-1_6_0-ibm (Important)
    2020-12-01
    oval:org.opensuse.security:def:32848
    P
    		dhcp on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:28586
    P
    		Security update for libxml2
    2020-12-01
    oval:org.opensuse.security:def:32385
    P
    		Security update for tightvnc (Important)
    2020-12-01
    oval:org.opensuse.security:def:29167
    P
    		Security update for mailman (Important)
    2020-12-01
    oval:org.opensuse.security:def:28728
    P
    		Security update for krb5 (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:32397
    P
    		Security update for unzip (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:29841
    P
    		Security update for Linux kernel
    2020-12-01
    oval:org.opensuse.security:def:33149
    P
    		libfreebl3 on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:32610
    P
    		unrar on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:28376
    P
    		Security update for quagga (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:33216
    P
    		openCryptoki on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:29067
    P
    		Security update for clamav (Important)
    2020-12-01
    oval:org.opensuse.security:def:32761
    P
    		pam on GA media (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:28455
    P
    		Security update for xen (Important)
    2020-12-01
    oval:org.opensuse.security:def:29123
    P
    		Security update for java-1_7_0-ibm (Important)
    2020-12-01
    oval:com.ubuntu.precise:def:20115321000
    V
    		CVE-2011-5321 on Ubuntu 12.04 LTS (precise) - medium.
    2016-05-02
    oval:com.ubuntu.trusty:def:20115321000
    V
    		CVE-2011-5321 on Ubuntu 14.04 LTS (trusty) - medium.
    2016-05-02
    oval:com.redhat.rhsa:def:20151221
    P
    		RHSA-2015:1221: kernel security, bug fix, and enhancement update (Moderate)
    2015-07-14
    BACK
    linux linux kernel *
    linux linux kernel *