OESA-2022-1845

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OESA-2022-1845

Summary: kernel security update

Details: Security Fix(es): st21nfca_connectivity_event_received in drivers/nfc/st21nfca/se.c in the Linux kernel through 5.16.12 has EVT_TRANSACTION buffer overflows because of untrusted length parameters.(CVE-2022-26490) The Linux kernel before 5.18.13 lacks a certain clear operation for the block starting symbol (.bss). This allows Xen PV guest OS users to cause a denial of service or gain privileges.(CVE-2022-36123) A use-after-free flaw was found in route4_change in the net/sched/cls_route.c filter implementation in the Linux kernel. This flaw allows a local, privileged attacker to crash the system, possibly leading to a local privilege escalation issue.(CVE-2022-2588) It was discovered that when exec ing from a non-leader thread, armed POSIX CPU timers would be left on a list but freed, leading to a use-after-free.(CVE-2022-2585)

References: https://www.openeuler.org/en/security/safety-bulletin/detail.html?id=openEuler-SA-2022-1845, https://nvd.nist.gov/vuln/detail/CVE-2022-26490, https://nvd.nist.gov/vuln/detail/CVE-2022-36123, https://nvd.nist.gov/vuln/detail/CVE-2022-2588, https://nvd.nist.gov/vuln/detail/CVE-2022-2585