CVE-2020-24586

NameCVE-2020-24586
DescriptionThe 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances, when another device sends fragmented frames encrypted using WEP, CCMP, or GCMP, this can be abused to inject arbitrary network packets and/or exfiltrate user data.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-2689-1, DLA-2690-1, DLA-3380-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
firmware-nonfree (PTS)buster/non-free20190114-2vulnerable
buster/non-free (security)20190114+really20220913-0+deb10u2fixed
bullseye/non-free20210315-3vulnerable
bookworm/non-free-firmware20230210-5fixed
trixie/non-free-firmware, sid/non-free-firmware20230625-2fixed
linux (PTS)buster4.19.249-2fixed
buster (security)4.19.304-1fixed
bullseye5.10.209-2fixed
bullseye (security)5.10.205-2fixed
bookworm6.1.76-1fixed
bookworm (security)6.1.69-1fixed
trixie6.6.15-2fixed
sid6.7.7-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
firmware-nonfreesourceexperimental20210716-1~exp1
firmware-nonfreesourcebuster20190114+really20220913-0+deb10u1DLA-3380-1
firmware-nonfreesource(unstable)20210818-1
linuxsourcestretch4.9.272-1DLA-2689-1
linuxsourcebuster4.19.194-1
linuxsource(unstable)5.10.46-1
linux-4.19sourcestretch4.19.194-1~deb9u1DLA-2690-1

Notes

[bullseye] - firmware-nonfree <no-dsa> (Non-free not supported)
https://papers.mathyvanhoef.com/usenix2021.pdf
https://www.fragattacks.com/
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html
https://lore.kernel.org/linux-wireless/c4d8c2f040b368225b72a91e74ee282d9ceab4d5.camel@coelho.fi/
https://lore.kernel.org/linux-wireless/20210511180259.159598-1-johannes@sipsolutions.net/
https://lore.kernel.org/linux-wireless/20210511200110.3f8290e59823.I622a67769ed39257327a362cfc09c812320eb979@changeid/
https://lore.kernel.org/linux-wireless/20210511200110.037aa5ca0390.I7bb888e2965a0db02a67075fcb5deb50eb7408aa@changeid/
firmware-nonfree (iwlwifi-fw-2021-05-12) addressed the firmware part of the CVE
https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/?id=55d964905a2b6cd790cbbbb46640bb2fb520b0cb

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