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CVE-2020-26146

kernel: reassembling encrypted fragments with non-consecutive packet numbers

An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WPA, WPA2, and WPA3 implementations reassemble fragments with non-consecutive packet numbers. An adversary can abuse this to exfiltrate selected fragments. This vulnerability is exploitable when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used. Note that WEP is vulnerable to this attack by design.

CVSS 3.1 · 5.3 Medium EPSS 5.6% KEV · Not listed
Vendors
Arista Redhat Samsung and 1 more
Products
C-100 C-100 Firmware C-110 and 36 more
CVE-2020-26147

kernel: reassembling mixed encrypted/plaintext fragments

An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.

CVSS 3.1 · 5.4 Medium EPSS 7.6% KEV · Not listed
Vendors
Arista Debian Linux and 2 more
Products
C-65 C-65 Firmware C-75 and 12 more
CVE-2018-5391

The Linux kernel, versions 3.9+, IP implementation is vulnerable to denial of service conditions with low rates of specially modified packets

The Linux kernel, versions 3.9+, is vulnerable to a denial of service attack with low rates of specially modified packets targeting IP fragment re-assembly. An attacker may cause a denial of service condition by sending specially crafted IP fragments. Various vulnerabilities in IP fragmentation have been discovered and fixed over the years. The current vulnerability (CVE-2018-5391) became exploitable in the Linux kernel with the increase of the IP fragment reassembly queue size.

CVSS 3.1 · 7.5 High EPSS 32.1% KEV · Not listed
Vendors
Canonical Debian F5 and 4 more