cvelistv5 - CVE-2020-28327

CVE-2020-28327

Vulnerability from cvelistv5

Published

2020-11-06 18:08

Modified

2024-08-04 16:33

Severity ?

Summary

A res_pjsip_session crash was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1. and Certified Asterisk before 16.8-cert5. Upon receiving a new SIP Invite, Asterisk did not return the created dialog locked or referenced. This caused a gap between the creation of the dialog object, and its next use by the thread that created it. Depending on some off-nominal circumstances and timing, it was possible for another thread to free said dialog in this gap. Asterisk could then crash when the dialog object, or any of its dependent objects, were dereferenced or accessed next by the initial-creation thread. Note, however, that this crash can only occur when using a connection-oriented protocol (e.g., TCP or TLS, but not UDP) for SIP transport. Also, the remote client must be authenticated, or Asterisk must be configured for anonymous calling.

References

URL	Tags
cve@mitre.org	http://downloads.asterisk.org/pub/security/AST-2020-001.html	Patch, Vendor Advisory
cve@mitre.org	https://issues.asterisk.org/jira/browse/ASTERISK-29057	Exploit, Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	http://downloads.asterisk.org/pub/security/AST-2020-001.html	Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://issues.asterisk.org/jira/browse/ASTERISK-29057	Exploit, Issue Tracking, Vendor Advisory

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

CVE-2020-28327

Vulnerability from cvelistv5

ghsa-ggx6-v629-c48v

Vulnerability from github

gsd-2020-28327

Vulnerability from gsd

var-202011-0904

Vulnerability from variot

Tags

Sightings

Nomenclature