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CVE-2019-7251

An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium...

6.5 MediumFix available

An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium Asterisk versions 15.7.1 and earlier and 16.1.1 and earlier allows remote authenticated users to crash Asterisk via a specially crafted SDP protocol violation.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

3.64%Up 2.9 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.5

An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium Asterisk versions 15.7.1 and earlier and 16.1.1 and earlier allows remote authenticated users to crash Asterisk via a specially crafted SDP protocol violation.

Record
CVE-2019-7251
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
4.0 MediumAV:N/AC:L/Au:S/C:N/I:N/A:P
Weakness
CWE-190
Updated
2026-11-02
CVE List No score

An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium Asterisk versions 15.7.1 and earlier and 16.1.1 and earlier allows remote authenticated users to crash Asterisk via a specially crafted SDP protocol violation.

Record
CVE-2019-7251
Updated
2026-11-02
EUVDEUVD-2019-16795 No score

An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium Asterisk versions 15.7.1 and earlier and 16.1.1 and earlier allows remote authenticated users to crash Asterisk via a specially crafted SDP protocol violation.

Record
EUVD-2019-16795
Updated
2026-11-03
GitHub AdvisoriesGHSA-686h-j227-6632 6.5

An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium...

An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium Asterisk versions 15.7.1 and earlier and 16.1.1 and earlier allows remote authenticated users to crash Asterisk via a specially crafted SDP protocol violation.

Record
GHSA-686h-j227-6632
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-190
Updated
2026-11-02
OSVALPINE-CVE-2019-7251 6.5

An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium Asterisk versions 15.7.1 and earlier and 16.1.1 and earlier allows remote authenticated users to crash Asterisk via a specially crafted SDP protocol violation.

Record
ALPINE-CVE-2019-7251
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSV 6.5

An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium Asterisk versions 15.7.1 and earlier and 16.1.1 and earlier allows remote authenticated users to crash Asterisk via a specially crafted SDP protocol violation.

Record
CVE-2019-7251
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2019-7251 6.5

An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium Asterisk versions 15.7.1 and earlier and 16.1.1 and earlier allows remote authenticated users to crash Asterisk via a specially crafted SDP protocol violation.

Record
DEBIAN-CVE-2019-7251
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2019-7251 6.5

An Integer Signedness issue (for a return code) in the res_pjsip_sdp_rtp module in Digium Asterisk versions 15.7.1 and earlier and 16.1.1 and earlier allows remote authenticated users to crash Asterisk via a specially crafted SDP protocol violation.

Record
UBUNTU-CVE-2019-7251
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
asterisk
Alpine:v3.10
 15.0.0 up to 16.3.0-r0
16.3.0-r0
asterisk
Alpine:v3.11
 15.0.0 up to 16.3.0-r0
16.3.0-r0
asterisk
Alpine:v3.12
 15.0.0 up to 16.3.0-r0
16.3.0-r0
asterisk
Alpine:v3.13
 15.0.0 up to 16.3.0-r0
16.3.0-r0
asterisk
Alpine:v3.14
 15.0.0 up to 16.3.0-r0
16.3.0-r0
asterisk
Alpine:v3.15
 15.0.0 up to 16.3.0-r0
16.3.0-r0
asterisk
Alpine:v3.16
 15.0.0 up to 16.3.0-r0
16.3.0-r0
asterisk
Alpine:v3.17
 15.0.0 up to 16.3.0-r0
16.3.0-r0
asterisk
Alpine:v3.18
 15.0.0 up to 16.3.0-r0
16.3.0-r0
asterisk
Alpine:v3.19
 15.0.0 up to 16.3.0-r0
16.3.0-r0
Show 11 moreShow less
Affected packages
PackageAffectedFixed
asterisk
Alpine:v3.20
 15.0.0 up to 16.3.0-r0
16.3.0-r0
asterisk
Alpine:v3.21
 15.0.0 up to 16.3.0-r0
16.3.0-r0
asterisk
Alpine:v3.22
 15.0.0 up to 16.3.0-r0
16.3.0-r0
asterisk
Alpine:v3.23
 15.0.0 up to 16.3.0-r0
16.3.0-r0
asterisk
Alpine:v3.24
 15.0.0 up to 16.3.0-r0
16.3.0-r0
asterisk
Alpine:v3.7
 15.0.0 up to 15.6.2-r0
15.6.2-r0
asterisk
Alpine:v3.8
 15.0.0 up to 15.6.2-r0
15.6.2-r0
asterisk
Alpine:v3.9
 15.0.0 up to 15.7.4-r0
15.7.4-r0
asterisk
Debian:14
 before 1:16.2.1~dfsg-1, plus listed versions
0.1.11-30.1.11-3woody11:1.0.5-21:1.0.5-41:1.0.6-1
Show 45 moreShow less
1:1.0.6-21:1.0.7-11:1.0.7.dfsg.1-11:1.0.7.dfsg.1-21:1.0.7.dfsg.1-2sarge11:1.0.7.dfsg.1-2sarge21:1.0.7.dfsg.1-2sarge31:1.0.7.dfsg.1-2sarge41:1.0.7.dfsg.1-2sarge51:1.0.7.dfsg.1-2sarge61:1.0.9.dfsg-11:1.0.9.dfsg-31:1.0.9.dfsg-41:1.0.9.dfsg-51:1.0.9.dfsg-61:1.2.0-beta1.dfsg-11:1.2.0-beta2.dfsg-11:1.2.0-beta2.dfsg-21:1.2.0-beta2.dfsg-31:1.2.0-rc1.dfsg-11:1.2.0-rc2.dfsg-11:1.2.0.dfsg-11:1.2.0.dfsg-21:1.2.0.dfsg-31:1.2.0.dfsg-41:1.2.0.dfsg-51:1.2.0.dfsg-61:1.2.1.dfsg-11:1.2.1.dfsg-21:1.2.1.dfsg-31:1.2.10.dfsg-11:1.2.10.dfsg-1bpo11:1.2.10.dfsg-21:1.2.10.dfsg-31:1.2.11.dfsg-11:1.2.12.1.dfsg-11:1.2.13~dfsg-11:1.2.13~dfsg-21:1.2.13~dfsg-2etch11:1.2.13~dfsg-2etch21:1.2.13~dfsg-2etch31:1.2.13~dfsg-2etch41:1.2.14~dfsg-11:1.2.14~dfsg-21:1.2.14~dfsg-3
1:16.2.1~dfsg-1
asterisk
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
1:13.1.0~dfsg-1.1ubuntu31:13.1.0~dfsg-1.1ubuntu41:13.1.0~dfsg-1.1ubuntu4.11:13.1.0~dfsg-1.1ubuntu4.1+esm1
 None known
asterisk
Ubuntu:18.04:LTS
 All versions, plus listed versions
1:13.17.2~dfsg-1ubuntu11:13.17.2~dfsg-2ubuntu11:13.18.1~dfsg-1ubuntu11:13.18.3~dfsg-1ubuntu11:13.18.3~dfsg-1ubuntu21:13.18.3~dfsg-1ubuntu31:13.18.3~dfsg-1ubuntu4
 None known

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2019-7251 is a medium vulnerability (CVSS 6.5) in Digium Asterisk, published March 28, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.64%, the 89th percentile. Fixed in asterisk 16.3.0-r0.

References

This page doesn't list everything

Left out here: 180 versions. The JSON record has them.

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