CVE-2019-8956

unknown

Published — · Modified —

CVSS v3

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CVSS v2

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VIR risk

—

Description

In the Linux Kernel before versions 4.20.8 and 4.19.21 a use-after-free error in the "sctp_sendmsg()" function (net/sctp/socket.c) when handling SCTP_SENDALL flag can be exploited to corrupt memory.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-8956

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`4.19.28-1`
debian	bullseye	fixed	`4.19.28-1`
debian	forky	fixed	`4.19.28-1`
debian	sid	fixed	`4.19.28-1`
debian	trixie	fixed	`4.19.28-1`

References

https://security-tracker.debian.org/tracker/CVE-2019-8956

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