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Red Hat Security Advisory

RHSA-2021:2725

kernel security and bug fix update

Released 2021-07-21 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 5 records

Priority MEDIUM 46

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged use…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.09808 Published 2021-07-20 Partial fix CWE-190
Priority LOW 35

The Linux kernel before 5.11.14 has a use-after-free in cipso_v4_genopt in net/ipv4/cipso_ipv4.c because the CIPSO and CALIPSO refcounting for the DOI definitions is mishandled, aka CID-ad5d07f4a9cd.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00571 Published 2021-05-14 Partial fix CWE-416