Vulnerability-Lookup

VAR-202212-0159

Vulnerability from variot - Updated: 2023-12-18 10:54

A use-after-free in res_pjsip_pubsub.c in Sangoma Asterisk 16.28, 18.14, 19.6, and certified/18.9-cert2 may allow a remote authenticated attacker to crash Asterisk (denial of service) by performing activity on a subscription via a reliable transport at the same time that Asterisk is also performing activity on that subscription. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512

Debian Security Advisory DSA-5358-1 security@debian.org https://www.debian.org/security/ Markus Koschany February 23, 2023 https://www.debian.org/security/faq

Package : asterisk CVE ID : CVE-2022-23537 CVE-2022-23547 CVE-2022-31031 CVE-2022-37325 CVE-2022-39244 CVE-2022-39269 CVE-2022-42705 CVE-2022-42706

Multiple security vulnerabilities have been discovered in Asterisk, an Open Source Private Branch Exchange. Buffer overflows and other programming errors could be exploited for launching a denial of service attack or the execution of arbitrary code.

For the stable distribution (bullseye), these problems have been fixed in version 1:16.28.0~dfsg-0+deb11u2.

We recommend that you upgrade your asterisk packages.

For the detailed security status of asterisk please refer to its security tracker page at: https://security-tracker.debian.org/tracker/asterisk

Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE-----

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CVE-2022-42705 (GCVE-0-2022-42705)

Vulnerability from cvelistv5 – Published: 2022-12-05 00:00 – Updated: 2025-04-24 14:25

Summary

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-24 14:25 UTC

CWE

n/a
CWE-416 - Use After Free

Assigner

mitre mitre root Scorecard

References

3 references

URL	Tags
https://downloads.asterisk.org/pub/security/AST-2…
https://lists.debian.org/debian-lts-announce/2023…	mailing-list
https://www.debian.org/security/2023/dsa-5358	vendor-advisory

Show details on NVD website

JSON

To clipboard

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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 6.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
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              "userInteraction": "NONE",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

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Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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VAR-202212-0159

CVE-2022-42705 (GCVE-0-2022-42705)

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Nomenclature

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