CVE-2022-4842

Vulnerability Summary

In the Linux kernel prior to 6.1.6, a NULL pointer dereference bug in the traffic control subsystem allows an unprivileged user to trigger a denial of service (system crash) via a crafted traffic control configuration that is set up with "tc qdisc" and "tc class" commands. This affects qdisc_graft in net/sched/sch_api.c. (CVE-2022-47929) In Linux kernel v5.15 and up there is a NULL Pointer Dereference vulnerability in the NTFS3 driver in the function attr_punch_hole() in fs/ntfs3/attrib.c that could be triggered by any user. (CVE-2022-4842) A buffer overflow vulnerability was found in the Netfilter subsystem in the Linux Kernel. This issue could allow the leakage of both stack and heap addresses, and potentially allow Local Privilege Escalation to the root user via arbitrary code execution. (CVE-2023-0179) A NULL pointer dereference flaw was found in rawv6_push_pending_frames in net/ipv6/raw.c in the network subcomponent in the Linux kernel. This flaw causes the system to crash. (CVE-2023-0394) cbq_classify in net/sched/sch_cbq.c in the Linux kernel up to and including 6.1.4 allows malicious users to cause a denial of service (slab-out-of-bounds read) because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results). (CVE-2023-23454) atm_tc_enqueue in net/sched/sch_atm.c in the Linux kernel up to and including 6.1.4 allows malicious users to cause a denial of service because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results). (CVE-2023-23455)

Vulnerability Trend

Vendor Advisories

References