Vulnerability Name:

CVE-2017-11608 (CCN-129313)

Assigned:2017-07-24
Published:2017-07-24
Updated:2019-10-03
Summary:There is a heap-based buffer over-read in the Sass::Prelexer::re_linebreak function in lexer.cpp in LibSass 3.4.5. A crafted input will lead to a remote denial of service attack.
CVSS v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
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): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-125
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2017-11608

Source: CCN
Type: LibSass Web site
Sass: LibSass

Source: CCN
Type: Red Hat Bugzilla – Bug 1474276
There is a heap based buffer overflow in libsass

Source: MISC
Type: Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1474276

Source: XF
Type: UNKNOWN
libsass-cve201711608-dos(129313)

Source: CCN
Type: libsass GIT Repository
Fix heap-buffer-overflow in re_linebreak (#3057)

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2017-11608

Source: CCN
Type: WhiteSource Vulnerability Database
WS-2019-0605

Vulnerable Configuration:Configuration 1:
  • cpe:/a:libsass:libsass:3.4.5:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:libsass:libsass:3.4.5:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:201711608
    V
    		CVE-2017-11608
    2019-09-27
    oval:com.ubuntu.xenial:def:2017116080000000
    V
    		CVE-2017-11608 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-07-24
    oval:com.ubuntu.artful:def:201711608000
    V
    		CVE-2017-11608 on Ubuntu 17.10 (artful) - medium.
    2017-07-24
    oval:com.ubuntu.disco:def:2017116080000000
    V
    		CVE-2017-11608 on Ubuntu 19.04 (disco) - medium.
    2017-07-24
    oval:com.ubuntu.bionic:def:201711608000
    V
    		CVE-2017-11608 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-07-24
    oval:com.ubuntu.cosmic:def:2017116080000000
    V
    		CVE-2017-11608 on Ubuntu 18.10 (cosmic) - medium.
    2017-07-24
    oval:com.ubuntu.cosmic:def:201711608000
    V
    		CVE-2017-11608 on Ubuntu 18.10 (cosmic) - medium.
    2017-07-24
    oval:com.ubuntu.bionic:def:2017116080000000
    V
    		CVE-2017-11608 on Ubuntu 18.04 LTS (bionic) - medium.
    2017-07-24
    oval:com.ubuntu.xenial:def:201711608000
    V
    		CVE-2017-11608 on Ubuntu 16.04 LTS (xenial) - medium.
    2017-07-24
    BACK
    libsass libsass 3.4.5
    libsass libsass 3.4.5