Vulnerabilities > Linux > Linux Kernel > High
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2023-09-22 | CVE-2023-34319 | Out-of-bounds Write vulnerability in multiple products The fix for XSA-423 added logic to Linux'es netback driver to deal with a frontend splitting a packet in a way such that not all of the headers would come in one piece. | 7.8 |
| 2023-09-20 | CVE-2023-2163 | Incorrect Calculation vulnerability in Linux Kernel Incorrect verifier pruning in BPF in Linux Kernel >=5.4 leads to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape. | 8.8 |
| 2023-09-12 | CVE-2023-4921 | Use After Free vulnerability in multiple products A use-after-free vulnerability in the Linux kernel's net/sched: sch_qfq component can be exploited to achieve local privilege escalation. When the plug qdisc is used as a class of the qfq qdisc, sending network packets triggers use-after-free in qfq_dequeue() due to the incorrect .peek handler of sch_plug and lack of error checking in agg_dequeue(). We recommend upgrading past commit 8fc134fee27f2263988ae38920bc03da416b03d8. | 7.8 |
| 2023-09-06 | CVE-2023-3777 | Use After Free vulnerability in multiple products A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. When nf_tables_delrule() is flushing table rules, it is not checked whether the chain is bound and the chain's owner rule can also release the objects in certain circumstances. We recommend upgrading past commit 6eaf41e87a223ae6f8e7a28d6e78384ad7e407f8. | 7.8 |
| 2023-09-06 | CVE-2023-4015 | Use After Free vulnerability in multiple products A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. On an error when building a nftables rule, deactivating immediate expressions in nft_immediate_deactivate() can lead unbinding the chain and objects be deactivated but later used. We recommend upgrading past commit 0a771f7b266b02d262900c75f1e175c7fe76fec2. | 7.8 |
| 2023-09-06 | CVE-2023-4206 | Use After Free vulnerability in multiple products A use-after-free vulnerability in the Linux kernel's net/sched: cls_route component can be exploited to achieve local privilege escalation. When route4_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. | 7.8 |
| 2023-09-06 | CVE-2023-4207 | Use After Free vulnerability in multiple products A use-after-free vulnerability in the Linux kernel's net/sched: cls_fw component can be exploited to achieve local privilege escalation. When fw_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. | 7.8 |
| 2023-09-06 | CVE-2023-4208 | Use After Free vulnerability in multiple products A use-after-free vulnerability in the Linux kernel's net/sched: cls_u32 component can be exploited to achieve local privilege escalation. When u32_change() is called on an existing filter, the whole tcf_result struct is always copied into the new instance of the filter. | 7.8 |
| 2023-09-06 | CVE-2023-4244 | Use After Free vulnerability in multiple products A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. Due to a race condition between nf_tables netlink control plane transaction and nft_set element garbage collection, it is possible to underflow the reference counter causing a use-after-free vulnerability. We recommend upgrading past commit 3e91b0ebd994635df2346353322ac51ce84ce6d8. | 7.0 |
| 2023-09-06 | CVE-2023-4622 | Use After Free vulnerability in multiple products A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation. The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. | 7.0 |