CVE-2019-13161: n/a vulnerability

CVE-2019-13161: An issue was discovered in Asterisk Open Source through 13.27.0, 14.x and 15.x through 15.7.2, and 16.x thr...

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).

UnknownCVSS not scoredNot KEV-listedUpdatedAug 4, 2024, 23:41 UTC (UTC+00:00)

Security readout for executives and security teams

This vulnerability can let a remote party crash an Asterisk phone system during a specific fax-over-IP negotiation path. It is mainly an availability risk: calls and telephony services may be disrupted, but the provided sources do not indicate data theft or code execution. Likely exposed systems run affected Asterisk Open Source versions through 13.27.0, 14.x, 15.x through 15.7.2, 16.x through 16.4.0, or Certified Asterisk through 13.21-cert3, with chan_sip and T.38 re-invite handling in use. Treat as a business continuity issue for voice infrastructure. Patch during the next maintenance window unless the affected Asterisk system is internet-facing, mission-critical, or handles untrusted SIP peers; then prioritize sooner. Mitigation focus: Review Digium AST-2019-003 and Debian advisories for vendor-fixed packages.; Upgrade affected Asterisk or distribution packages to supported fixed releases.; Identify and reduce unnecessary public exposure of SIP services..

Prepared: Jun 6, 2026, 20:22 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jul 12, 2019, 19:24 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

4Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://issues.asterisk.org/jira/browse/ASTERISK-28465CVE reference · x_refsource_CONFIRM
[debian-lts-announce] 20191130 [SECURITY] [DLA 2017-1] asterisk security updateCVE reference · mailing-list, x_refsource_MLIST
[debian-lts-announce] 20220403 [SECURITY] [DLA 2969-1] asterisk security updateCVE reference · mailing-list, x_refsource_MLIST

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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