Vulnerability Details : CVE-2021-39924
Large loop 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
Vulnerability category: Denial of service
Exploit prediction scoring system (EPSS) score for CVE-2021-39924
Probability of exploitation activity in the next 30 days: 0.44%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 74 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-39924
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
GitLab Inc. |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-39924
-
The product performs an iteration or loop without sufficiently limiting the number of times that the loop is executed.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-39924
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YEWTIRMC2MFQBZ2O5M4CJHJM4JPBHLXH/
[SECURITY] Fedora 34 Update: wireshark-3.6.0-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A6AJFIYIHS3TYDD2EBYBJ5KKE52X34BJ/
[SECURITY] Fedora 35 Update: wireshark-3.6.0-1.fc35 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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https://www.wireshark.org/security/wnpa-sec-2021-10.html
Wireshark · wnpa-sec-2021-10 · Bluetooth DHT dissector large loopVendor Advisory
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https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39924.json
2021/CVE-2021-39924.json · master · GitLab.org / cves · GitLabThird Party Advisory
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https://security.gentoo.org/glsa/202210-04
Wireshark: Multiple Vulnerabilities (GLSA 202210-04) — Gentoo securityThird Party Advisory
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https://lists.debian.org/debian-lts-announce/2021/12/msg00015.html
[SECURITY] [DLA 2849-1] wireshark security updateMailing List;Third Party Advisory
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https://gitlab.com/wireshark/wireshark/-/issues/17677
Buildbot crash output: fuzz-2021-10-23-10702.pcap (#17677) · Issues · Wireshark Foundation / wireshark · GitLabExploit;Issue Tracking;Patch;Third Party Advisory
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https://www.debian.org/security/2021/dsa-5019
Debian -- Security Information -- DSA-5019-1 wiresharkThird Party Advisory
Products affected by CVE-2021-39924
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
- cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*