CVE-2020-11494

unknown

Published — · Modified —

CVSS v3

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CVSS v2

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VIR risk

—

Description

An issue was discovered in slc_bump in drivers/net/can/slcan.c in the Linux kernel 3.16 through 5.6.2. It allows attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL, aka CID-b9258a2cece4.

Predictions

Exploit likelihood

20%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2020-11494

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2020-11494.html

OS impact

OS	Version	Status	Fixed in
sles		affected
debian	bookworm	fixed	`5.5.17-1`
debian	bullseye	fixed	`5.5.17-1`
debian	forky	fixed	`5.5.17-1`
debian	sid	fixed	`5.5.17-1`
debian	trixie	fixed	`5.5.17-1`

References

https://www.suse.com/security/cve/CVE-2020-11494.html
https://security-tracker.debian.org/tracker/CVE-2020-11494

Verify integrity in audit chain (admin only). AS-IS.