MGASA-2021-0366

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MGASA-2021-0366

Summary: Updated kernel packages fix security vulnerabilities

Details: This kernel update is based on upstream 5.10.52 and fixes at least the following security issues: There is a race condition in net/can/bcm.c that can lead to local privilege escalation to root (CVE-2021-3609). A vulnerability was found in the Linux kernel. Missing size validations on inbound SCTP packets may allow the kernel to read uninitialized memory (CVE-2021-3655). 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 user (CVE-2021-33909). Other fixes in this update: - rtl8xxxu: disable interrupt_in transfer for 8188cu and 8192cu For other upstream fixes, see the referenced changelogs.

References: https://advisories.mageia.org/MGASA-2021-0366.html, https://bugs.mageia.org/show_bug.cgi?id=29271, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.49, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.50, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.51, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.52, https://www.openwall.com/lists/oss-security/2021/06/19/1, https://www.openwall.com/lists/oss-security/2021/07/20/1