MGASA-2021-0508

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MGASA-2021-0508

Summary: Updated kernel-linus packages fix security vulnerabilities

Details: This kernel-linus update is based on upstream 5.10.78 and fixes at least the following security issues: A use-after-free vulnerability in the NFC stack can lead to a threat to confidentiality, integrity, and system availability (CVE-2021-3760). A flaw in the SCTP stack where a blind attacker may be able to kill an existing SCTP association through invalid chunks if the attacker knows the IP-addresses and port numbers being used and the attacker can send packets with spoofed IP addresses (CVE-2021-3772). A flaw heap buffer overflow in the Linux kernel's AMD Radeon graphics card driver was found in the way user writes some malicious data to the AMD GPU Display Driver Debug Filesystem (to the VGA sub-directory of the /sys/kernel/debug/ directory). A local user could use this flaw to crash the system or escalate their privileges on the system (CVE-2021-42327). The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking (CVE-2021-42739). A flaw was discovered in the cryptographic receive code in the Linux kernel's implementation of transparent interprocess communication. An attacker, with the ability to send TIPC messages to the target, can corrupt memory and escalate privileges on the target system (CVE-2021-43267). An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c (CVE-2021-43389). For other upstream fixes, see the referenced changelogs.

References: https://advisories.mageia.org/MGASA-2021-0508.html, https://bugs.mageia.org/show_bug.cgi?id=29629, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.76, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.77, https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.78