Vulnerability Name:

CVE-2019-15639 (CCN-166668)

Assigned:2019-09-05
Published:2019-09-05
Updated:2019-09-10
Summary:main/translate.c in Sangoma Asterisk 13.28.0 and 16.5.0 allows a remote attacker to send a specific RTP packet during a call and cause a crash in a specific scenario.
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
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: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
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-20
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2019-15639

Source: CCN
Type: Asterisk Project Security Advisory - AST-2019-005
Remote Crash Vulnerability in audio transcoding

Source: CONFIRM
Type: Vendor Advisory
http://downloads.asterisk.org/pub/security/AST-2019-005.html

Source: MISC
Type: Third Party Advisory, VDB Entry
http://packetstormsecurity.com/files/154372/Asterisk-Project-Security-Advisory-AST-2019-005.html

Source: XF
Type: UNKNOWN
asterisk-cve201915639-dos(166668)

Vulnerable Configuration:Configuration 1:
  • cpe:/a:digium:asterisk:*:*:*:*:*:*:*:* (Version >= 13.0.0 and <= 13.28.0)
  • OR cpe:/a:digium:asterisk:*:*:*:*:*:*:*:* (Version >= 16.0.0 and <= 16.5.0)

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:com.ubuntu.disco:def:2019156390000000
    V
    		CVE-2019-15639 on Ubuntu 19.04 (disco) - untriaged.
    2019-09-09
    oval:com.ubuntu.bionic:def:2019156390000000
    V
    		CVE-2019-15639 on Ubuntu 18.04 LTS (bionic) - untriaged.
    2019-09-09
    oval:com.ubuntu.xenial:def:2019156390000000
    V
    		CVE-2019-15639 on Ubuntu 16.04 LTS (xenial) - untriaged.
    2019-09-09
    BACK
    digium asterisk *
    digium asterisk *