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CVE-2019-12827

Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2,...

6.5 MediumFix available

CVE-2019-12827 is a medium vulnerability (CVSS 6.5) in Digium Asterisk, published July 12, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.04%, the 90th percentile. Fixed in asterisk 16.3.0-r2.

Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2, 16.4.0 and earlier allows remote authenticated users to crash Asterisk by sending a specially crafted SIP MESSAGE message.

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

4.04%Up 3.3 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 6.5

Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2, 16.4.0 and earlier allows remote authenticated users to crash Asterisk by sending a specially crafted SIP MESSAGE message.

Record
CVE-2019-12827
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-787
Updated
2026-11-02
CVE List No score

Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2, 16.4.0 and earlier allows remote authenticated users to crash Asterisk by sending a specially crafted SIP MESSAGE message.

Record
CVE-2019-12827
Updated
2026-11-02
EUVDEUVD-2019-4407 No score

Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2, 16.4.0 and earlier allows remote authenticated users to crash Asterisk by sending a specially crafted SIP MESSAGE message.

Record
EUVD-2019-4407
Updated
2026-11-03
GitHub AdvisoriesGHSA-3x27-45gw-9p39 6.5

Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2,...

Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2, 16.4.0 and earlier allows remote authenticated users to crash Asterisk by sending a specially crafted SIP MESSAGE message.

Record
GHSA-3x27-45gw-9p39
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-119, CWE-787
Updated
2026-11-02
OSVALPINE-CVE-2019-12827 6.5

Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2, 16.4.0 and earlier allows remote authenticated users to crash Asterisk by sending a specially crafted SIP MESSAGE message.

Record
ALPINE-CVE-2019-12827
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

Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2, 16.4.0 and earlier allows remote authenticated users to crash Asterisk by sending a specially crafted SIP MESSAGE message.

Record
CVE-2019-12827
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-2019-12827 6.5

Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2, 16.4.0 and earlier allows remote authenticated users to crash Asterisk by sending a specially crafted SIP MESSAGE message.

Record
DEBIAN-CVE-2019-12827
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-2019-12827 6.5

Buffer overflow in res_pjsip_messaging in Digium Asterisk versions 13.21-cert3, 13.27.0, 15.7.2, 16.4.0 and earlier allows remote authenticated users to crash Asterisk by sending a specially crafted SIP MESSAGE message.

Record
UBUNTU-CVE-2019-12827
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
 13.0.0 up to 16.3.0-r2
16.3.0-r2
asterisk
Alpine:v3.11
 13.0.0 up to 16.4.1-r0
16.4.1-r0
asterisk
Alpine:v3.12
 13.0.0 up to 16.4.1-r0
16.4.1-r0
asterisk
Alpine:v3.13
 13.0.0 up to 16.4.1-r0
16.4.1-r0
asterisk
Alpine:v3.14
 13.0.0 up to 16.4.1-r0
16.4.1-r0
asterisk
Alpine:v3.15
 13.0.0 up to 16.4.1-r0
16.4.1-r0
asterisk
Alpine:v3.16
 13.0.0 up to 16.4.1-r0
16.4.1-r0
asterisk
Alpine:v3.17
 13.0.0 up to 16.4.1-r0
16.4.1-r0
asterisk
Alpine:v3.18
 13.0.0 up to 16.4.1-r0
16.4.1-r0
asterisk
Alpine:v3.19
 13.0.0 up to 16.4.1-r0
16.4.1-r0
Show 11 moreShow less
Affected packages
PackageAffectedFixed
asterisk
Alpine:v3.20
 13.0.0 up to 16.4.1-r0
16.4.1-r0
asterisk
Alpine:v3.21
 13.0.0 up to 16.4.1-r0
16.4.1-r0
asterisk
Alpine:v3.22
 13.0.0 up to 16.4.1-r0
16.4.1-r0
asterisk
Alpine:v3.23
 13.0.0 up to 16.4.1-r0
16.4.1-r0
asterisk
Alpine:v3.24
 13.0.0 up to 16.4.1-r0
16.4.1-r0
asterisk
Alpine:v3.7
 13.0.0 up to 15.6.2-r0
15.6.2-r0
asterisk
Alpine:v3.8
 13.0.0 up to 15.6.2-r0
15.6.2-r0
asterisk
Alpine:v3.9
 13.0.0 up to 15.7.4-r0
15.7.4-r0
asterisk
Debian:14
 before 1:16.2.1~dfsg-2, 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-2
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
WhenChangedSources
2026-11-03aliasesEUVD
2026-11-02createdCVE List, GitHub Advisories, NVD, OSV

References

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Left out here: 181 versions. The JSON record has them.

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