CVE-2019-18976

Published: Nov 22, 2019Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-476

7.5HIGH

NVD MITRE

Description

An issue was discovered in res_pjsip_t38.c in Sangoma Asterisk through 13.x and Certified Asterisk through 13.21-x. If it receives a re-invite initiating T.38 faxing and has a port of 0 and no c line in the SDP, a NULL pointer dereference and crash will occur. This is different from CVE-2019-18940.

No summary for this CVE yet.

CVSS Vector Breakdown

Exploitability

AV:NAttack Vector

Network

AC:LAttack Complexity

Low

PR:NPrivileges Required

None

UI:NUser Interaction

None

Scope

S:UScope

Unchanged

Impact

C:NConfidentiality

None

I:NIntegrity

None

A:HAvailability

High

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Weaknesses

CWE-476

Affected Products

digium

commercial·USaka asterisk

commercial·USaka digium, digium inc.

oss-project·GBaka debian gnu/linux

debian linuxOn-premOS

Operating Systems / linux-distro

and 1 more affected products View all →

Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details

Official Patch Available

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Impact

Initial Access

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References

http://downloads.asterisk.org/pub/security/AST-2019-008.html

downloads.asterisk.org

https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html

lists.debian.org

https://packetstormsecurity.com/files/155436/Asterisk-Project-Security-Advisory-AST-2019-008.html

packetstormsecurity.com

and 7 more references View all →

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Exploit details & PoC links

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