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Vigil@nce - Linux kernel: use after free via __blk_drain_queue

October 2019 by Vigil@nce

This bulletin was written by Vigil@nce : https://vigilance.fr/offer/Computer...

SYNTHESIS OF THE VULNERABILITY

- Impacted products: Debian, Linux, Slackware, SUSE Linux Enterprise
- Desktop, SLES, Ubuntu.
- Severity: 2/4.
- Consequences: administrator access/rights, denial of service on server.
- Provenance: user shell.
- Confidence: confirmed by the editor (5/5).
- Creation date: 14/08/2019.

DESCRIPTION OF THE VULNERABILITY

An attacker can force the usage of a freed memory area via __blk_drain_queue() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.

ACCESS TO THE FULL VIGIL@NCE BULLETIN

https://vigilance.fr/vulnerability/...




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