Bug 2218672 (CVE-2023-3090) - CVE-2023-3090 kernel: ipvlan: out-of-bounds write caused by unclear skb->cb
Summary: CVE-2023-3090 kernel: ipvlan: out-of-bounds write caused by unclear skb->cb
Keywords:
Status: NEW
Alias: CVE-2023-3090
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Nobody
QA Contact:
URL:
Whiteboard:
Depends On: 2218676 2218677 2219657 2219658 2219659 2219660 2219661 2219664 2219665 2219666 2219667 2219668 2219669 2219671 2219674 2219675 2219676 2219677 2219678 2218673 2219656 2219662 2219670 2219673 2219679
Blocks: 2218674
TreeView+ depends on / blocked
 
Reported: 2023-06-29 19:34 UTC by Guilherme de Almeida Suckevicz
Modified: 2023-08-08 07:22 UTC (History)
48 users (show)

Fixed In Version: kernel 6.4-rc2
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in the IPVLAN network driver in the Linux kernel. This issue is caused by missing skb->cb initialization in `__ip_options_echo` and can lead to an out-of-bounds write stack overflow. This may allow a local user to cause a denial of service or potentially achieve local privilege escalation.
Clone Of:
Environment:
Last Closed:
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2023:4377 0 None None None 2023-08-01 09:17:33 UTC
Red Hat Product Errata RHSA-2023:4378 0 None None None 2023-08-01 08:59:28 UTC
Red Hat Product Errata RHSA-2023:4380 0 None None None 2023-08-01 09:12:42 UTC
Red Hat Product Errata RHSA-2023:4515 0 None None None 2023-08-08 07:22:33 UTC
Red Hat Product Errata RHSA-2023:4516 0 None None None 2023-08-08 07:22:25 UTC

Description Guilherme de Almeida Suckevicz 2023-06-29 19:34:24 UTC 
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.

References:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=90cbed5247439a966b645b34eb0a2e037836ea8e
https://kernel.dance/90cbed5247439a966b645b34eb0a2e037836ea8e
Comment 1 Guilherme de Almeida Suckevicz 2023-06-29 19:34:50 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2218673]
Comment 4 Justin M. Forbes 2023-07-03 17:57:55 UTC 
This was fixed for Fedora with the 6.3.4 stable kernel updates.
Comment 12 errata-xmlrpc 2023-08-01 08:59:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:4378 https://access.redhat.com/errata/RHSA-2023:4378
Comment 13 errata-xmlrpc 2023-08-01 09:12:39 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:4380 https://access.redhat.com/errata/RHSA-2023:4380
Comment 14 errata-xmlrpc 2023-08-01 09:17:30 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:4377 https://access.redhat.com/errata/RHSA-2023:4377
Comment 15 errata-xmlrpc 2023-08-08 07:22:21 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

Via RHSA-2023:4516 https://access.redhat.com/errata/RHSA-2023:4516
Comment 16 errata-xmlrpc 2023-08-08 07:22:30 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions

Via RHSA-2023:4515 https://access.redhat.com/errata/RHSA-2023:4515
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