Vulnerability Name:

CVE-2018-19278 (CCN-152968)

Assigned:2018-11-14
Published:2018-11-14
Updated:2018-12-30
Summary:Buffer overflow in DNS SRV and NAPTR lookups in Digium Asterisk 15.x before 15.6.2 and 16.x before 16.0.1 allows remote attackers to crash Asterisk via a specially crafted DNS SRV or NAPTR response, because a buffer size is supposed to match an expanded length but actually matches a compressed length.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 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: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): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (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
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-119
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-19278

Source: CCN
Type: Asterisk Project Security Advisory - AST-2018-010
Remote crash vulnerability DNS SRV and NAPTR lookups

Source: MISC
Type: Patch, Vendor Advisory
https://downloads.asterisk.org/pub/security/AST-2018-010.html

Source: XF
Type: UNKNOWN
asterisk-cve201819278-dos(152968)

Source: MISC
Type: Exploit, Vendor Advisory
https://issues.asterisk.org/jira/browse/ASTERISK-28127

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2018-19278

Vulnerable Configuration:Configuration 1:
  • cpe:/a:digium:asterisk:15.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.0.0:b1:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.0.0:rc1:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.1.0:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.1.0:rc1:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.1.0:rc2:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.1.2:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.1.3:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.1.4:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.1.5:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.2.0:rc1:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.2.0:rc2:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.2.1:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.2.2:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.3.0:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.3.0:rc1:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.3.0:rc2:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.4.0:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.4.0:rc1:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.4.0:rc2:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.4.1:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.5.0:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.5.0:rc1:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.6.0:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.6.0:rc1:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:15.6.1:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:16.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:16.0.0:rc2:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:16.0.0:rc3:*:*:*:*:*:*
  • OR cpe:/a:digium:asterisk:16.0.1:rc1:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    digium asterisk 15.0.0
    digium asterisk 15.0.0 b1
    digium asterisk 15.0.0 rc1
    digium asterisk 15.1.0
    digium asterisk 15.1.0 rc1
    digium asterisk 15.1.0 rc2
    digium asterisk 15.1.2
    digium asterisk 15.1.3
    digium asterisk 15.1.4
    digium asterisk 15.1.5
    digium asterisk 15.2.0 rc1
    digium asterisk 15.2.0 rc2
    digium asterisk 15.2.1
    digium asterisk 15.2.2
    digium asterisk 15.3.0
    digium asterisk 15.3.0 rc1
    digium asterisk 15.3.0 rc2
    digium asterisk 15.4.0
    digium asterisk 15.4.0 rc1
    digium asterisk 15.4.0 rc2
    digium asterisk 15.4.1
    digium asterisk 15.5.0
    digium asterisk 15.5.0 rc1
    digium asterisk 15.6.0
    digium asterisk 15.6.0 rc1
    digium asterisk 15.6.1
    digium asterisk 16.0.0
    digium asterisk 16.0.0 rc2
    digium asterisk 16.0.0 rc3
    digium asterisk 16.0.1 rc1