Oracle Linux: CVE-2024-41090: ELSA-2024-12581: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)

Oracle Linux: CVE-2024-41090: ELSA-2024-12581: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)

Severity

5

CVSS

(AV:L/AC:L/Au:N/C:N/I:N/A:C)

Published

07/24/2024

Created

08/20/2024

Added

08/16/2024

Modified

01/23/2025

Description

In the Linux kernel, the following vulnerability has been resolved: tap: add missing verification for short frame The cited commit missed to check against the validity of the frame length in the tap_get_user_xdp() path, which could cause a corrupted skb to be sent downstack. Even before the skb is transmitted, the tap_get_user_xdp()-->skb_set_network_header() may assume the size is more than ETH_HLEN. Once transmitted, this could either cause out-of-bound access beyond the actual length, or confuse the underlayer with incorrect or inconsistent header length in the skb metadata. In the alternative path, tap_get_user() already prohibits short frame which has the length less than Ethernet header size from being transmitted. This is to drop any frame shorter than the Ethernet header size just like how tap_get_user() does. CVE: CVE-2024-41090 A denial of service (DoS) attack was found in the mlx5 driver in the Linux kernel. A KVM guest VM using virtio-net can crash the host by sending a short packet, for example, size < ETH_HLEN. The packet may traverse through vhost-net, macvtap, and vlan without any validation or drop. When this packet is presented to the mlx5 driver on the host side, the kernel panic happens since mlx5_core assumes the frame size is always >= ETH_HLEN.

Solution(s)

• oracle-linux-upgrade-kernel
• oracle-linux-upgrade-kernel-uek

References

• https://attackerkb.com/topics/cve-2024-41090
• CVE - 2024-41090
• ELSA-2024-12581
• ELSA-2024-5928
• ELSA-2024-12549
• ELSA-2024-7000
• ELSA-2024-12546
• ELSA-2024-12582
• ELSA-2024-12548
• ELSA-2024-12547
• ELSA-2024-12584
• ELSA-2024-12585
• ELSA-2024-12782
• ELSA-2024-12571
• ELSA-2024-12583
• ELSA-2024-12780
• ELSA-2024-12570
• ELSA-2024-12551
• ELSA-2024-12552
• ELSA-2024-12815

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