Vulnerability Name:

CVE-2015-0856 (CCN-109316)

Assigned:2015-01-07
Published:2015-01-07
Updated:2016-11-17
Summary:daemon/Greeter.cpp in sddm before 0.13.0 does not properly disable the KDE crash handler, which allows local users to gain privileges by crashing a greeter when using certain themes, as demonstrated by the plasma-workspace breeze theme.
CVSS v3 Severity:7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
6.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/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): High
Availibility (A): High
CVSS v2 Severity:4.6 Medium (CVSS v2 Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
6.8 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:C/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): Complete
Integrity (I): Complete
Availibility (A): Complete
Vulnerability Type:CWE-264
Vulnerability Consequences:Gain Privileges
References:Source: MITRE
Type: CNA
CVE-2015-0856

Source: FEDORA
Type: Third Party Advisory
FEDORA-2015-9f996ea146

Source: MLIST
Type: Mailing List, Third Party Advisory
[oss-security] 20151014 CVE-2015-0856: sddm does not prevent access to the KDE crash handler

Source: BID
Type: Third Party Advisory, VDB Entry
77099

Source: XF
Type: UNKNOWN
sddm-cve20150856-priv-esc(109316)

Source: CONFIRM
Type: Vendor Advisory
https://github.com/sddm/sddm/commit/4cfed6b0a625593fb43876f04badc4dd99799d86

Source: CONFIRM
Type: Vendor Advisory
https://github.com/sddm/sddm/wiki/0.13.0-Release-Announcement

Source: CCN
Type: Fedora Project Mailing List, Fri Nov 13 01:55:32 UTC 2015
[SECURITY] Fedora 22 Update: sddm-0.12.0-5.fc22

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2015-0856

Vulnerable Configuration:Configuration 1:
  • cpe:/o:fedoraproject:fedora:22:*:*:*:*:*:*:*

    • Configuration 2:
  • cpe:/a:sddm_project:sddm:*:*:*:*:*:*:*:* (Version <= 0.12.0)

    • Configuration CCN 1:
  • cpe:/a:sddm:sddm:0.12.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:20150856
    V
    		CVE-2015-0856
    2022-06-30
    oval:org.opensuse.security:def:360
    P
    		sddm-0.19.0-lp154.3.6 on GA media (Moderate)
    2022-06-10
    oval:org.opensuse.security:def:113431
    P
    		sddm-0.14.0-2.1 on GA media (Moderate)
    2022-01-17
    oval:org.opensuse.security:def:106832
    P
    		sddm-0.14.0-2.1 on GA media (Moderate)
    2021-10-01
    oval:com.ubuntu.artful:def:20150856000
    V
    		CVE-2015-0856 on Ubuntu 17.10 (artful) - low.
    2015-11-24
    oval:com.ubuntu.bionic:def:201508560000000
    V
    		CVE-2015-0856 on Ubuntu 18.04 LTS (bionic) - low.
    2015-11-24
    oval:com.ubuntu.bionic:def:20150856000
    V
    		CVE-2015-0856 on Ubuntu 18.04 LTS (bionic) - low.
    2015-11-24
    oval:com.ubuntu.xenial:def:201508560000000
    V
    		CVE-2015-0856 on Ubuntu 16.04 LTS (xenial) - low.
    2015-11-24
    oval:com.ubuntu.xenial:def:20150856000
    V
    		CVE-2015-0856 on Ubuntu 16.04 LTS (xenial) - low.
    2015-11-24
    BACK
    fedoraproject fedora 22
    sddm_project sddm *
    sddm sddm 0.12.0