Debian Bug report logs -
#974712
asterisk: CVE-2020-28327
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Bug#974712
; Package src:asterisk
.
(Sat, 14 Nov 2020 06:30:04 GMT) (full text, mbox, link).
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to Salvatore Bonaccorso <carnil@debian.org>
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New Bug report received and forwarded. Copy sent to carnil@debian.org, team@security.debian.org, Debian VoIP Team <pkg-voip-maintainers@lists.alioth.debian.org>
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(Sat, 14 Nov 2020 06:30:04 GMT) (full text, mbox, link).
Message #5 received at submit@bugs.debian.org (full text, mbox, reply):
Source: asterisk
Version: 1:16.12.0~dfsg-1
Severity: important
Tags: security upstream
Forwarded: https://issues.asterisk.org/jira/browse/ASTERISK-29057
X-Debbugs-Cc: carnil@debian.org, Debian Security Team <team@security.debian.org>
Hi,
The following vulnerability was published for asterisk.
CVE-2020-28327[0]:
| 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.
If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.
For further information see:
[0] https://security-tracker.debian.org/tracker/CVE-2020-28327
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28327
[1] https://issues.asterisk.org/jira/browse/ASTERISK-29057
Please adjust the affected versions in the BTS as needed.
Regards,
Salvatore
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