CVE-2019-13161

MEDIUM
5.3
CVSS Score
Published: July 12, 2019 at 07:24 PM UTC
Updated: June 17, 2026 at 02:16 AM UTC
3 products affected across 2 vendorsDebian LinuxAsteriskCertified Asterisk

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Severity
MEDIUM5.3
Exploit prediction
EPSS 4%

Description

An issue was discovered in Asterisk Open Source through 13.27.0, 14.x and 15.x through 15.7.2, and 16.x through 16.4.0, and Certified Asterisk through 13.21-cert3. A pointer dereference in chan_sip while handling SDP negotiation allows an attacker to crash Asterisk when handling an SDP answer to an outgoing T.38 re-invite. To exploit this vulnerability an attacker must cause the chan_sip module to send a T.38 re-invite request to them. Upon receipt, the attacker must send an SDP answer containing both a T.38 UDPTL stream and another media stream containing only a codec (which is not permitted according to the chan_sip configuration).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

13.0.0 ≤ v < 13.27.115.0.0 ≤ v < 15.7.316.0.0 ≤ v < 16.4.1
Affected range stops below 13.27.1, so it looks safe — our inference, not a vendor statement
Affected range stops below 15.7.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 16.4.1, so it looks safe — our inference, not a vendor statement
1.8.0.01.8.0.0 beta11.8.0.0 beta21.8.0.0 beta31.8.0.0 beta41.8.0.0 beta51.8.0.0 rc11.8.0.0 rc21.8.0.0 rc31.8.0.0 rc41.8.0.0 rc51.8.1.01.8.1.0 rc11.8.10.01.8.10.0 rc11.8.10.0 rc21.8.10.0 rc31.8.10.0 rc41.8.11 cert1.8.11 cert11.8.11 cert101.8.11 cert21.8.11 cert31.8.11 cert3-rc11.8.11 cert3-rc21.8.11 cert41.8.11 cert51.8.11 cert5-rc11.8.11 cert5-rc21.8.11 cert61.8.11 cert71.8.11 cert81.8.11 cert91.8.11 cert9-rc11.8.11.01.8.11.0 rc11.8.11.0 rc21.8.11.0 rc31.8.12.01.8.12.0 rc11.8.12.0 rc21.8.12.0 rc31.8.13.01.8.13.0 rc11.8.13.0 rc21.8.14.0 rc11.8.14.0 rc21.8.151.8.15 cert11.8.15 cert1-rc11.8.15 cert1-rc21.8.15 cert1-rc31.8.15 cert1_rc11.8.15 cert1_rc21.8.15 cert1_rc31.8.15 cert21.8.15 cert31.8.15 cert41.8.15 cert51.8.15 cert61.8.15 cert71.8.2.01.8.2.0 rc11.8.281.8.28 cert11.8.28 cert1-rc11.8.28 cert21.8.28 cert31.8.28 cert41.8.28 cert51.8.28.01.8.3.01.8.3.0 rc11.8.3.0 rc21.8.3.0 rc31.8.4.01.8.4.0 rc11.8.4.0 rc21.8.4.0 rc31.8.5.01.8.5.0 rc11.8.6.01.8.6.0 rc11.8.6.0 rc21.8.6.0 rc31.8.7.01.8.7.0 rc11.8.7.0 rc21.8.8.01.8.8.0 rc11.8.8.0 rc21.8.8.0 rc31.8.8.0 rc41.8.8.0 rc51.8.9.01.8.9.0 rc11.8.9.0 rc21.8.9.0 rc311.0.011.0.0 rc111.0.0 rc211.1.011.1.0 rc111.1.0 rc211.1.0 rc311.2 cert111.2 cert1-rc211.2 cert211.2 cert311.3.011.3.0 rc111.3.0 rc211.4.011.4.0 rc111.4.0 rc211.4.0 rc311.5.011.5.0 rc111.5.0 rc211.6 cert111.6 cert1-rc111.6 cert1-rc211.6 cert1011.6 cert1111.6 cert1211.6 cert1311.6 cert1411.6 cert14-rc111.6 cert14-rc211.6 cert1511.6 cert1611.6 cert1711.6 cert1811.6 cert1_rc111.6 cert1_rc211.6 cert211.6 cert311.6 cert411.6 cert511.6 cert611.6 cert711.6 cert811.6 cert911.6.011.6.0 rc111.6.0 rc213.1 cert113.1 cert1-rc113.1 cert1-rc313.1 cert213.1 cert313.1 cert3-rc113.1 cert413.1 cert513.1 cert613.1 cert713.1 cert813.1.013.1.0 rc113.1.0 rc213.13 cert1-rc113.13 cert1-rc213.13 cert1-rc313.13 cert1-rc413.13 cert213.13 cert313.13 cert413.13 cert513.13 cert613.13 cert713.13 cert813.13 cert913.13-cert213.18 cert113.18 cert1-rc113.18 cert1-rc213.18 cert1-rc313.18 cert213.18 cert313.18 cert413.21 cert113.21 cert1-rc113.21 cert1-rc213.21 cert213.21 cert313.8 cert113.8 cert1-rc213.8 cert1-rc313.8 cert1_rc113.8 cert1_rc213.8 cert1_rc313.8 cert213.8 cert2-rc113.8 cert2_rc113.8 cert313.8 cert413.8.013.8.0 rc1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (4)

x_refsource_CONFIRMIssue TrackingVendor Advisory
https://issues.asterisk.org/jira/browse/ASTERISK-28465
Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/11/msg00038.html
Mailing Listx_refsource_MLISTThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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