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Oracle Linux: CVE-2024-1086: ELSA-2024-12271: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)

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Oracle Linux: CVE-2024-1086: ELSA-2024-12271: Unbreakable Enterprise kernel security update (IMPORTANT) (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
01/31/2024
Created
05/21/2024
Added
03/21/2024
Modified
02/14/2025

Description

A use-after-free vulnerability in the Linux kernel's netfilter: nf_tables component can be exploited to achieve local privilege escalation. The nft_verdict_init() function allows positive values as drop error within the hook verdict, and hence the nf_hook_slow() function can cause a double free vulnerability when NF_DROP is issued with a drop error which resembles NF_ACCEPT. We recommend upgrading past commit f342de4e2f33e0e39165d8639387aa6c19dff660. A flaw was found in the Netfilter subsystem in the Linux kernel. This issue occurs in the nft_verdict_init() function, allowing positive values as a drop error within the hook verdict, therefore, the nf_hook_slow() function can cause a double-free vulnerability when NF_DROP is issued with a drop error that resembles NF_ACCEPT. The nf_tables component can be exploited to achieve local privilege escalation.

Solution(s)

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

References

  • https://attackerkb.com/topics/cve-2024-1086
  • CVE - 2024-1086
  • ELSA-2024-12271
  • ELSA-2024-2394
  • ELSA-2024-12256
  • ELSA-2024-12257
  • ELSA-2024-12258
  • ELSA-2024-12270
  • ELSA-2024-12259
  • ELSA-2024-12275
  • ELSA-2024-12265
  • ELSA-2024-12274
  • ELSA-2024-1249
  • ELSA-2024-1607
  • ELSA-2024-12378
  • ELSA-2024-12255
  • ELSA-2024-12260
  • ELSA-2024-12266
View more
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