Is CVE-2021-39929 in the CISA KEV catalog?

No. CVE-2021-39929 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-39929?

CVE-2021-39929 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-39929?

CVE-2021-39929 has an EPSS score of 3.64% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-39929?

Upgrade wireshark on debian 11 to 3.4.10-0+deb11u1 or later. Fixes are available for 9 affected products.

CVE & CISA-KEV Catalog

CVE-2021-39929

HIGHEPSS 88th pctl

7.5

CVSS v3

NVD

Description

Uncontrolled Recursion in the Bluetooth DHT dissector in Wireshark 3.4.0 to 3.4.9 and 3.2.0 to 3.2.17 allows denial of service via packet injection or crafted capture file

CWE-674

How to fix

Remediation Available

wiresharkDebian

Fixed in:3.4.10-0+deb11u1CVE-2021-39929

Fixed in:3.6.0-1CVE-2021-39929

libwireshark11Ubuntu

Fixed in:2.6.10-1~ubuntu14.04.0~esm3USN-7552-1

Fixed in:2.6.10-1~ubuntu16.04.0+esm2USN-7552-1

Fixed in:2.6.10-1~ubuntu18.04.0+esm2USN-7552-1

libwireshark13Ubuntu

Fixed in:3.2.3-1ubuntu0.1~esm2USN-7552-1

libwireshark15Ubuntu

Fixed in:3.6.2-2ubuntu0.1~esm1USN-7552-1

tsharkUbuntu

Fixed in:2.6.10-1~ubuntu14.04.0~esm3USN-7552-1

Fixed in:2.6.10-1~ubuntu16.04.0+esm2USN-7552-1

Fixed in:2.6.10-1~ubuntu18.04.0+esm2USN-7552-1

Fixed in:3.2.3-1ubuntu0.1~esm2USN-7552-1

Fixed in:3.6.2-2ubuntu0.1~esm1USN-7552-1

wiresharkUbuntu

Fixed in:2.6.10-1~ubuntu14.04.0~esm3USN-7552-1

Fixed in:2.6.10-1~ubuntu16.04.0+esm2USN-7552-1

Fixed in:2.6.10-1~ubuntu18.04.0+esm2USN-7552-1

Fixed in:3.2.3-1ubuntu0.1~esm2USN-7552-1

Fixed in:3.6.2-2ubuntu0.1~esm1USN-7552-1

wireshark-commonUbuntu

Fixed in:2.6.10-1~ubuntu14.04.0~esm3USN-7552-1

Fixed in:2.6.10-1~ubuntu16.04.0+esm2USN-7552-1

Fixed in:2.6.10-1~ubuntu18.04.0+esm2USN-7552-1

Fixed in:3.2.3-1ubuntu0.1~esm2USN-7552-1

Fixed in:3.6.2-2ubuntu0.1~esm1USN-7552-1

wireshark-gtkUbuntu

Fixed in:2.6.10-1~ubuntu14.04.0~esm3USN-7552-1

Fixed in:2.6.10-1~ubuntu16.04.0+esm2USN-7552-1

Fixed in:2.6.10-1~ubuntu18.04.0+esm2USN-7552-1

Fixed in:3.2.3-1ubuntu0.1~esm2USN-7552-1

Fixed in:3.6.2-2ubuntu0.1~esm1USN-7552-1

wireshark-qtUbuntu

Fixed in:2.6.10-1~ubuntu14.04.0~esm3USN-7552-1

Fixed in:2.6.10-1~ubuntu16.04.0+esm2USN-7552-1

Fixed in:2.6.10-1~ubuntu18.04.0+esm2USN-7552-1

Fixed in:3.2.3-1ubuntu0.1~esm2USN-7552-1

Fixed in:3.6.2-2ubuntu0.1~esm1USN-7552-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

3.64%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Patch1

gitlab.com

Vendor Advisory1

wireshark.org

Third-Party Advisory4

Other references2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.