Vulnerability CVE-2017-9372

Vulnerability Name:

CVE-2017-9372 (CCN-126201)

Assigned:

2017-04-12

Published:

2017-04-12

Updated:

2017-11-05

Summary:

PJSIP, as used in Asterisk Open Source 13.x before 13.15.1 and 14.x before 14.4.1, Certified Asterisk 13.13 before 13.13-cert4, and other products, allows remote attackers to cause a denial of service (buffer overflow and application crash) via a SIP packet with a crafted CSeq header in conjunction with a Via header that lacks a branch parameter.

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-2017-9372

Source: CCN
Type: Asterisk Project Security Advisory - AST-2017-002
Buffer Overrun in PJSIP transaction layer

Source: CONFIRM
Type: Third Party Advisory
http://downloads.asterisk.org/pub/security/AST-2017-002.txt

Source: DEBIAN
Type: UNKNOWN
DSA-3933

Source: BID
Type: Third Party Advisory, VDB Entry
98572

Source: CCN
Type: BID-98572
Multiple Asterisk Products 'PJSIP Transaction Layer' Heap Based Buffer Overflow Vulnerability

Source: SECTRACK
Type: UNKNOWN
1038529

Source: CONFIRM
Type: Mailing List, Third Party Advisory
https://bugs.debian.org/863901

Source: XF
Type: UNKNOWN
asterisk-bufferoverrun-dos(126201)

Vulnerable Configuration:

Configuration 1:

cpe:/a:digium:open_source:13.0.0:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.1.0:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.1.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.1.0:rc2:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.2.0:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.2.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.3.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.4.0:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.4.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.5.0:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.5.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.6.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.7.0:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.7.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.8.0:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.8.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.8.1:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.8.2:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.9.0:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.9.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.10.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.11.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.12.0:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.12.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.12.1:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.12.2:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.13.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.14.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:13.15.0:rc1:*:*:*:*:*:*

Configuration 2:

cpe:/a:digium:open_source:14.0.0:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:14.0.0:beta1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:14.0.0:beta2:*:*:*:*:*:*

OR cpe:/a:digium:open_source:14.0.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:14.1.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:14.2.0:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:14.2.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:14.2.0:rc2:*:*:*:*:*:*

OR cpe:/a:digium:open_source:14.2.1:*:*:*:*:*:*:*

OR cpe:/a:digium:open_source:14.3.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:open_source:14.4.0:rc1:*:*:*:*:*:*

Configuration 3:

cpe:/a:digium:certified_asterisk:13.13.0:*:*:*:*:*:*:*

OR cpe:/a:digium:certified_asterisk:13.13.0:cert1:*:*:*:*:*:*

OR cpe:/a:digium:certified_asterisk:13.13.0:cert1-rc1:*:*:*:*:*:*

OR cpe:/a:digium:certified_asterisk:13.13.0:cert1-rc2:*:*:*:*:*:*

OR cpe:/a:digium:certified_asterisk:13.13.0:cert1-rc3:*:*:*:*:*:*

OR cpe:/a:digium:certified_asterisk:13.13.0:cert1-rc4:*:*:*:*:*:*

OR cpe:/a:digium:certified_asterisk:13.13.0:cert2:*:*:*:*:*:*

OR cpe:/a:digium:certified_asterisk:13.13.0:cert3:*:*:*:*:*:*

OR cpe:/a:digium:certified_asterisk:13.13.0:rc1:*:*:*:*:*:*

OR cpe:/a:digium:certified_asterisk:13.13.0:rc2:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.artful:def:20179372000	V	CVE-2017-9372 on Ubuntu 17.10 (artful) - medium.	2017-06-02
oval:com.ubuntu.trusty:def:20179372000	V	CVE-2017-9372 on Ubuntu 14.04 LTS (trusty) - medium.	2017-06-02
oval:com.ubuntu.xenial:def:20179372000	V	CVE-2017-9372 on Ubuntu 16.04 LTS (xenial) - medium.	2017-06-02
oval:com.ubuntu.xenial:def:201793720000000	V	CVE-2017-9372 on Ubuntu 16.04 LTS (xenial) - medium.	2017-06-02

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