Vulnerability Name:

CVE-2017-18187 (CCN-139180)

Assigned:2017-06-26
Published:2017-06-26
Updated:2020-02-10
Summary:In ARM mbed TLS before 2.7.0, there is a bounds-check bypass through an integer overflow in PSK identity parsing in the ssl_parse_client_psk_identity() function in library/ssl_srv.c.
CVSS v3 Severity:9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): High
Integrity (I): High
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:L/A:N)
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:L/A:N/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): Low
Availibility (A): None
CVSS v2 Severity:7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-190
Vulnerability Consequences:Bypass Security
References:Source: MITRE
Type: CNA
CVE-2017-18187

Source: BID
Type: Third Party Advisory, VDB Entry
103055

Source: CCN
Type: BID-103055
ARM mbed TLS CVE-2017-18187 Integer Overflow Vulnerability

Source: XF
Type: UNKNOWN
arm-cve201718187-sec-bypass(139180)

Source: CONFIRM
Type: Third Party Advisory
https://github.com/ARMmbed/mbedtls/blob/master/ChangeLog

Source: CCN
Type: mbedtls GIT Repository
Prevent bounds check bypass through overflow in PSK identity parsing

Source: CONFIRM
Type: Patch, Third Party Advisory
https://github.com/ARMmbed/mbedtls/commit/83c9f495ffe70c7dd280b41fdfd4881485a3bc28

Source: GENTOO
Type: Third Party Advisory
GLSA-201804-19

Source: UBUNTU
Type: UNKNOWN
USN-4267-1

Source: DEBIAN
Type: Third Party Advisory
DSA-4138

Source: DEBIAN
Type: Third Party Advisory
DSA-4147

Vulnerable Configuration:Configuration 1:
  • cpe:/a:arm:mbed_tls:*:*:*:*:*:*:*:* (Version < 2.7.0)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*
  • OR cpe:/o:debian:debian_linux:9.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:arm:mbed_tls:2.6.1:-:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:201718187
    V
    		CVE-2017-18187
    2021-10-24
    oval:org.opensuse.security:def:25733
    P
    		Security update for mgetty (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:25243
    P
    		Security update for java-1_8_0-ibm (Important)
    2020-12-01
    oval:org.opensuse.security:def:25587
    P
    		Security update for perl-PlRPC (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:24971
    P
    		Security update for expat (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:26371
    P
    		Security update for Chromium (Important)
    2020-12-01
    oval:org.opensuse.security:def:25300
    P
    		Security update for dovecot22 (Important)
    2020-12-01
    oval:org.opensuse.security:def:25675
    P
    		Security update for MozillaFirefox (Important)
    2020-12-01
    oval:org.opensuse.security:def:25035
    P
    		Security update for jasper (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:26406
    P
    		Security update for mbedtls (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:25384
    P
    		Security update for java-1_7_1-ibm (Moderate)
    2020-12-01
    oval:org.opensuse.security:def:25689
    P
    		Security update for MozillaFirefox (Important)
    2020-12-01
    oval:org.opensuse.security:def:25162
    P
    		Security update for webkit2gtk3 (Important)
    2020-12-01
    oval:org.opensuse.security:def:25534
    P
    		Security update for adns (Important)
    2020-12-01
    oval:org.opensuse.security:def:24960
    P
    		Security update for MozillaFirefox (Important)
    2020-12-01
    oval:com.ubuntu.bionic:def:2017181870000000
    V
    		CVE-2017-18187 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-02-14
    oval:com.ubuntu.artful:def:201718187000
    V
    		CVE-2017-18187 on Ubuntu 17.10 (artful) - untriaged.
    2018-02-14
    oval:com.ubuntu.xenial:def:201718187000
    V
    		CVE-2017-18187 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-02-14
    oval:com.ubuntu.xenial:def:2017181870000000
    V
    		CVE-2017-18187 on Ubuntu 16.04 LTS (xenial) - medium.
    2018-02-14
    oval:com.ubuntu.bionic:def:201718187000
    V
    		CVE-2017-18187 on Ubuntu 18.04 LTS (bionic) - medium.
    2018-02-14
    oval:com.ubuntu.disco:def:2017181870000000
    V
    		CVE-2017-18187 on Ubuntu 19.04 (disco) - medium.
    2018-02-14
    oval:com.ubuntu.cosmic:def:201718187000
    V
    		CVE-2017-18187 on Ubuntu 18.10 (cosmic) - medium.
    2018-02-14
    oval:com.ubuntu.cosmic:def:2017181870000000
    V
    		CVE-2017-18187 on Ubuntu 18.10 (cosmic) - medium.
    2018-02-14
    oval:com.ubuntu.trusty:def:201718187000
    V
    		CVE-2017-18187 on Ubuntu 14.04 LTS (trusty) - medium.
    2018-02-14
    BACK
    arm mbed tls *
    debian debian linux 8.0
    debian debian linux 9.0
    arm mbed tls 2.6.1