The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6255-1 advisory.

  - A heap out-of-bounds write vulnerability in the Linux Kernel ipvlan network driver can be exploited to     achieve local privilege escalation. The out-of-bounds write is caused by missing skb->cb initialization in     the ipvlan network driver. The vulnerability is reachable if CONFIG_IPVLAN is enabled. We recommend     upgrading past commit 90cbed5247439a966b645b34eb0a2e037836ea8e. (CVE-2023-3090)

  - Linux Kernel nftables Use-After-Free Local Privilege Escalation Vulnerability; `nft_chain_lookup_byid()`     failed to check whether a chain was active and CAP_NET_ADMIN is in any user or network namespace     (CVE-2023-31248)

  - A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local     privilege escalation. Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a     hrtimer. We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59     (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for     5.15 stable). (CVE-2023-3389)

  - A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in     net/netfilter/nf_tables_api.c. Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a     dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local     attacker with user access to cause a privilege escalation issue. We recommend upgrading past commit     1240eb93f0616b21c675416516ff3d74798fdc97. (CVE-2023-3390)

  - A flaw was found in the MCTP protocol in the Linux kernel. The function mctp_unregister() reclaims the     device's relevant resource when a netcard detaches. However, a running routine may be unaware of this and     cause the use-after-free of the mdev->addrs object, potentially leading to a denial of service.
    (CVE-2023-3439)

  - Linux Kernel nftables Out-Of-Bounds Read/Write Vulnerability; nft_byteorder poorly handled vm register     contents when CAP_NET_ADMIN is in any user or network namespace (CVE-2023-35001)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

Analytics

Ubuntu 20.04 LTS : Linux kernel (Intel IoTG) vulnerabilities (USN-6255-1)

high Nessus Plugin ID 178919

Version 1.3

Version 1.2

Version 1.2

Version 1.1

Version 1.0

Version 1.3 Jan 10, 2024, 8:45 AM Detection (updated detection logic) Plugin Feed: 202401100845
Version 1.2 Dec 25, 2023, 2:08 PM CVSSv2 score source (changed from "CVE-2023-3389" to "CVE-2023-35001") Plugin Feed: 202312251408
Version 1.2 Jan 9, 2024, 6:56 PM Detection (updated detection logic) Plugin Feed: 202401091856
Version 1.1 Oct 23, 2023, 4:39 PM CVSSv2 score source (changed from "CVE-2023-35001" to "CVE-2023-3389") Plugin Feed: 202310231639
Version 1.0 Jul 27, 2023, 8:06 AM New Plugin Feed: 202307270806