WID-SEC-W-2022-0049

csafDEcert_bund

DeutschShown in its original language — a full translation is planned for a future version.

Linux Kernel: Mehrere Schwachstellen

view advisory published 2022-01-10

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um seine Privilegien zu erhöhen, um Sicherheitsmechanismen zu umgehen und um Informationen offenzulegen.

01

describes (3)

Related CVEs.

IDseverity exploitable
CVE-2021-4155USmedium5.5—
A data leak flaw was found in the way XFS_IOC_ALLOCSP IOCTL in the XFS filesystem allowed for size increase of files with unaligned size. A local attacker could use this flaw to le…
CVE-2021-1048UShigh7.8OT criticalKEV
In ep_loop_check_proc of eventpoll.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with no additional executi…
CVE-2021-0920USmedium6.4OT criticalKEV
In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges n…
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references

External citations — patches, advisories, analysis.

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