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CVE-2024-36270 Affecting kernel-uki-virt package, versions <0:5.14.0-427.26.1.el9_4

Severity

 Recommended
high

Based on Oracle Linux security rating

    Threat Intelligence

    EPSS
    0.04% (11th percentile)

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  • Snyk ID SNYK-ORACLE9-KERNELUKIVIRT-7546881
  • published 20 Jul 2024
  • disclosed 21 Jun 2024
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Introduced: 21 Jun 2024

CVE-2024-36270 Open this link in a new tab

How to fix?

Upgrade Oracle:9 kernel-uki-virt to version 0:5.14.0-427.26.1.el9_4 or higher.
This issue was patched in ELSA-2024-4583.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-uki-virt package and not the kernel-uki-virt package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

netfilter: tproxy: bail out if IP has been disabled on the device

syzbot reports: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] [..] RIP: 0010:nf_tproxy_laddr4+0xb7/0x340 net/ipv4/netfilter/nf_tproxy_ipv4.c:62 Call Trace: nft_tproxy_eval_v4 net/netfilter/nft_tproxy.c:56 [inline] nft_tproxy_eval+0xa9a/0x1a00 net/netfilter/nft_tproxy.c:168

__in_dev_get_rcu() can return NULL, so check for this.

CVSS Scores

version 3.1
Expand this section

Red Hat

5.5 medium
  • Attack Vector (AV)
    Local
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    Low
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    None
  • Integrity (I)
    None
  • Availability (A)
    High