Wireshark
CVE-2021-39925
HIGH
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
1DescriptionNVD
Buffer overflow in the Bluetooth SDP 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
AnalysisAI
Buffer overflow in the Bluetooth SDP 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. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Technical ContextAI
This vulnerability is classified as Buffer Copy without Size Check (CWE-120), which allows attackers to overflow a buffer to corrupt adjacent memory. Buffer overflow in the Bluetooth SDP 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 Affected products include: Wireshark, Fedoraproject Fedora, Debian Debian Linux.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Always validate buffer sizes before copy operations. Use bounded functions (strncpy, snprintf). Enable compiler protections.
Buffer overflow in the mpeg_read function in wiretap/mpeg.c in the MPEG parser in Wireshark 1.8.x before 1.8.13 and 1.10
The dissect_capwap_data function in epan/dissectors/packet-capwap.c in the CAPWAP dissector in Wireshark 1.6.x before 1.
The netmonrec_comment_destroy function in wiretap/netmon.c in Wireshark through 2.4.4 performs a free operation on an un
wiretap/libpcap.c in the libpcap file parser in Wireshark 1.10.x before 1.10.4 allows remote attackers to execute arbitr
In Wireshark 2.2.0 to 2.2.6, the IPv6 dissector could crash. Rated high severity (CVSS 7.5), this vulnerability is remot
In Wireshark 2.4.0 to 2.4.2 and 2.2.0 to 2.2.10, the CIP Safety dissector could crash. Rated high severity (CVSS 7.5), t
In Wireshark 2.2.0 to 2.2.6, the ROS dissector could crash with a NULL pointer dereference. Rated high severity (CVSS 7.
A denial of service vulnerability in Column handling crashes in Wireshark 4.4.0 to 4.4.6 and 4.2.0 to 4.2.12 (CVSS 7.8)
BT SDP dissector memory leak in Wireshark 4.0.0 to 4.0.7 and 3.6.0 to 3.6.15 allows denial of service via packet injecti
CBOR dissector crash in Wireshark 4.0.0 to 4.0.6 allows denial of service via packet injection or crafted capture file.
GDSDB infinite loop in Wireshark 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13 allows denial of service via packet injection or cra
RPCoRDMA dissector crash in Wireshark 4.0.0 to 4.0.4 and 3.6.0 to 3.6.12 allows denial of service via packet injection o
Same weakness CWE-120 – Classic Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
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