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 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).

Published: 2019-07-12 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2019-13161 is rated Moderate Risk (54.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 4.03%). EPSS rose +1.81% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2019-13161

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 2.22% 4.03% +1.81%
2 2026-06-12 2.31% 2.22% -0.09%
3 2026-05-29 — 2.31% —

Full EPSS history (21 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2019-13161

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.3 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.6 3.6 [email protected]
3.5 2.0 LOW
AV:N/AC:M/Au:S/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 6.8 2.9 [email protected]

Weakness enumeration for CVE-2019-13161

OS Trackers for CVE-2019-13161

vendor priority summary link
alpine medium CVE-2019-13161: 1 source package rows (asterisk); 1 state rows across 1 repos (3.10-main); fixed 1, open 0. https://security.alpinelinux.org/vuln/CVE-2019-13161
debian low CVE-2019-13161 low priority: Debian including 1 source packages (asterisk), 2 status rows across 2 suites (bullseye, sid): resolved 2. https://security-tracker.debian.org/tracker/CVE-2019-13161
ubuntu medium CVE-2019-13161 medium priority: Ubuntu including 1 source packages (asterisk), 19 status rows across 19 suites (bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): not-affected 13, ignored 2, needed 2, DNE 1, released 1. https://ubuntu.com/security/CVE-2019-13161

Affected software / configurations for CVE-2019-13161

Vendor Product Version Raw CPE
digium certified_asterisk 1.8.0.0 cpe:2.3:a:digium:certified_asterisk:1.8.0.0:-:*:*:*:*:*:*
digium certified_asterisk 1.8.0.0 cpe:2.3:a:digium:certified_asterisk:1.8.0.0:beta1:*:*:*:*:*:*
digium certified_asterisk 1.8.0.0 cpe:2.3:a:digium:certified_asterisk:1.8.0.0:beta2:*:*:*:*:*:*
digium certified_asterisk 1.8.0.0 cpe:2.3:a:digium:certified_asterisk:1.8.0.0:beta3:*:*:*:*:*:*
digium certified_asterisk 1.8.0.0 cpe:2.3:a:digium:certified_asterisk:1.8.0.0:beta4:*:*:*:*:*:*
digium certified_asterisk 1.8.0.0 cpe:2.3:a:digium:certified_asterisk:1.8.0.0:beta5:*:*:*:*:*:*
digium certified_asterisk 1.8.0.0 cpe:2.3:a:digium:certified_asterisk:1.8.0.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.0.0 cpe:2.3:a:digium:certified_asterisk:1.8.0.0:rc2:*:*:*:*:*:*
digium certified_asterisk 1.8.0.0 cpe:2.3:a:digium:certified_asterisk:1.8.0.0:rc3:*:*:*:*:*:*
digium certified_asterisk 1.8.0.0 cpe:2.3:a:digium:certified_asterisk:1.8.0.0:rc4:*:*:*:*:*:*
digium certified_asterisk 1.8.0.0 cpe:2.3:a:digium:certified_asterisk:1.8.0.0:rc5:*:*:*:*:*:*
digium certified_asterisk 1.8.1.0 cpe:2.3:a:digium:certified_asterisk:1.8.1.0:-:*:*:*:*:*:*
digium certified_asterisk 1.8.1.0 cpe:2.3:a:digium:certified_asterisk:1.8.1.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.2.0 cpe:2.3:a:digium:certified_asterisk:1.8.2.0:-:*:*:*:*:*:*
digium certified_asterisk 1.8.2.0 cpe:2.3:a:digium:certified_asterisk:1.8.2.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.3.0 cpe:2.3:a:digium:certified_asterisk:1.8.3.0:-:*:*:*:*:*:*
digium certified_asterisk 1.8.3.0 cpe:2.3:a:digium:certified_asterisk:1.8.3.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.3.0 cpe:2.3:a:digium:certified_asterisk:1.8.3.0:rc2:*:*:*:*:*:*
digium certified_asterisk 1.8.3.0 cpe:2.3:a:digium:certified_asterisk:1.8.3.0:rc3:*:*:*:*:*:*
digium certified_asterisk 1.8.4.0 cpe:2.3:a:digium:certified_asterisk:1.8.4.0:-:*:*:*:*:*:*
digium certified_asterisk 1.8.4.0 cpe:2.3:a:digium:certified_asterisk:1.8.4.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.4.0 cpe:2.3:a:digium:certified_asterisk:1.8.4.0:rc2:*:*:*:*:*:*
digium certified_asterisk 1.8.4.0 cpe:2.3:a:digium:certified_asterisk:1.8.4.0:rc3:*:*:*:*:*:*
digium certified_asterisk 1.8.5.0 cpe:2.3:a:digium:certified_asterisk:1.8.5.0:-:*:*:*:*:*:*
digium certified_asterisk 1.8.5.0 cpe:2.3:a:digium:certified_asterisk:1.8.5.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.6.0 cpe:2.3:a:digium:certified_asterisk:1.8.6.0:-:*:*:*:*:*:*
digium certified_asterisk 1.8.6.0 cpe:2.3:a:digium:certified_asterisk:1.8.6.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.6.0 cpe:2.3:a:digium:certified_asterisk:1.8.6.0:rc2:*:*:*:*:*:*
digium certified_asterisk 1.8.6.0 cpe:2.3:a:digium:certified_asterisk:1.8.6.0:rc3:*:*:*:*:*:*
digium certified_asterisk 1.8.7.0 cpe:2.3:a:digium:certified_asterisk:1.8.7.0:-:*:*:*:*:*:*
digium certified_asterisk 1.8.7.0 cpe:2.3:a:digium:certified_asterisk:1.8.7.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.7.0 cpe:2.3:a:digium:certified_asterisk:1.8.7.0:rc2:*:*:*:*:*:*
digium certified_asterisk 1.8.8.0 cpe:2.3:a:digium:certified_asterisk:1.8.8.0:-:*:*:*:*:*:*
digium certified_asterisk 1.8.8.0 cpe:2.3:a:digium:certified_asterisk:1.8.8.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.8.0 cpe:2.3:a:digium:certified_asterisk:1.8.8.0:rc2:*:*:*:*:*:*
digium certified_asterisk 1.8.8.0 cpe:2.3:a:digium:certified_asterisk:1.8.8.0:rc3:*:*:*:*:*:*
digium certified_asterisk 1.8.8.0 cpe:2.3:a:digium:certified_asterisk:1.8.8.0:rc4:*:*:*:*:*:*
digium certified_asterisk 1.8.8.0 cpe:2.3:a:digium:certified_asterisk:1.8.8.0:rc5:*:*:*:*:*:*
digium certified_asterisk 1.8.9.0 cpe:2.3:a:digium:certified_asterisk:1.8.9.0:-:*:*:*:*:*:*
digium certified_asterisk 1.8.9.0 cpe:2.3:a:digium:certified_asterisk:1.8.9.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.9.0 cpe:2.3:a:digium:certified_asterisk:1.8.9.0:rc2:*:*:*:*:*:*
digium certified_asterisk 1.8.9.0 cpe:2.3:a:digium:certified_asterisk:1.8.9.0:rc3:*:*:*:*:*:*
digium certified_asterisk 1.8.10.0 cpe:2.3:a:digium:certified_asterisk:1.8.10.0:-:*:*:*:*:*:*
digium certified_asterisk 1.8.10.0 cpe:2.3:a:digium:certified_asterisk:1.8.10.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.10.0 cpe:2.3:a:digium:certified_asterisk:1.8.10.0:rc2:*:*:*:*:*:*
digium certified_asterisk 1.8.10.0 cpe:2.3:a:digium:certified_asterisk:1.8.10.0:rc3:*:*:*:*:*:*
digium certified_asterisk 1.8.10.0 cpe:2.3:a:digium:certified_asterisk:1.8.10.0:rc4:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert1:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert10:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert2:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert3:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert3-rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert3-rc2:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert4:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert5:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert5-rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert5-rc2:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert6:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert7:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert8:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert9:*:*:*:*:*:*
digium certified_asterisk 1.8.11 cpe:2.3:a:digium:certified_asterisk:1.8.11:cert9-rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.11.0 cpe:2.3:a:digium:certified_asterisk:1.8.11.0:-:*:*:*:*:*:*
digium certified_asterisk 1.8.11.0 cpe:2.3:a:digium:certified_asterisk:1.8.11.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.11.0 cpe:2.3:a:digium:certified_asterisk:1.8.11.0:rc2:*:*:*:*:*:*
digium certified_asterisk 1.8.11.0 cpe:2.3:a:digium:certified_asterisk:1.8.11.0:rc3:*:*:*:*:*:*
digium certified_asterisk 1.8.12.0 cpe:2.3:a:digium:certified_asterisk:1.8.12.0:-:*:*:*:*:*:*
digium certified_asterisk 1.8.12.0 cpe:2.3:a:digium:certified_asterisk:1.8.12.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.12.0 cpe:2.3:a:digium:certified_asterisk:1.8.12.0:rc2:*:*:*:*:*:*
digium certified_asterisk 1.8.12.0 cpe:2.3:a:digium:certified_asterisk:1.8.12.0:rc3:*:*:*:*:*:*
digium certified_asterisk 1.8.13.0 cpe:2.3:a:digium:certified_asterisk:1.8.13.0:-:*:*:*:*:*:*
digium certified_asterisk 1.8.13.0 cpe:2.3:a:digium:certified_asterisk:1.8.13.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.13.0 cpe:2.3:a:digium:certified_asterisk:1.8.13.0:rc2:*:*:*:*:*:*
digium certified_asterisk 1.8.14.0 cpe:2.3:a:digium:certified_asterisk:1.8.14.0:rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.14.0 cpe:2.3:a:digium:certified_asterisk:1.8.14.0:rc2:*:*:*:*:*:*
digium certified_asterisk 1.8.15 cpe:2.3:a:digium:certified_asterisk:1.8.15:-:*:*:*:*:*:*
digium certified_asterisk 1.8.15 cpe:2.3:a:digium:certified_asterisk:1.8.15:cert1:*:*:*:*:*:*
digium certified_asterisk 1.8.15 cpe:2.3:a:digium:certified_asterisk:1.8.15:cert1-rc1:*:*:*:*:*:*
digium certified_asterisk 1.8.15 cpe:2.3:a:digium:certified_asterisk:1.8.15:cert1-rc2:*:*:*:*:*:*

References for CVE-2019-13161

cvelogic Threat Intelligence