Bug 2405713 (CVE-2023-53705) - CVE-2023-53705 kernel: ipv6: Fix out-of-bounds access in ipv6_find_tlv()
Summary: CVE-2023-53705 kernel: ipv6: Fix out-of-bounds access in ipv6_find_tlv()
Keywords:
Status: NEW
Alias: CVE-2023-53705
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-10-22 14:01 UTC by OSIDB Bzimport
Modified: 2026-06-29 20:12 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:0532 0 None None None 2026-01-14 00:20:25 UTC
Red Hat Product Errata RHSA-2026:0533 0 None None None 2026-01-14 00:13:47 UTC
Red Hat Product Errata RHSA-2026:0537 0 None None None 2026-01-14 00:07:33 UTC
Red Hat Product Errata RHSA-2026:0576 0 None None None 2026-01-14 09:47:39 UTC
Red Hat Product Errata RHSA-2026:0754 0 None None None 2026-01-19 01:15:52 UTC
Red Hat Product Errata RHSA-2026:0755 0 None None None 2026-01-19 01:32:51 UTC
Red Hat Product Errata RHSA-2026:1441 0 None None None 2026-01-28 00:29:16 UTC
Red Hat Product Errata RHSA-2026:1442 0 None None None 2026-01-28 00:32:45 UTC
Red Hat Product Errata RHSA-2026:1443 0 None None None 2026-01-28 00:23:14 UTC
Red Hat Product Errata RHSA-2026:1512 0 None None None 2026-01-28 19:15:03 UTC

Description OSIDB Bzimport 2025-10-22 14:01:26 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ipv6: Fix out-of-bounds access in ipv6_find_tlv()

optlen is fetched without checking whether there is more than one byte to parse.
It can lead to out-of-bounds access.

Found by InfoTeCS on behalf of Linux Verification Center
(linuxtesting.org) with SVACE.
Comment 1 Jon Moroney 2025-10-22 18:24:14 UTC Comment hidden (spam)
Comment 5 errata-xmlrpc 2026-01-14 00:07:32 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2026:0537 https://access.redhat.com/errata/RHSA-2026:0537
Comment 6 errata-xmlrpc 2026-01-14 00:13:46 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:0533 https://access.redhat.com/errata/RHSA-2026:0533
Comment 7 errata-xmlrpc 2026-01-14 00:20:24 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:0532 https://access.redhat.com/errata/RHSA-2026:0532
Comment 8 errata-xmlrpc 2026-01-14 09:47:38 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Via RHSA-2026:0576 https://access.redhat.com/errata/RHSA-2026:0576
Comment 10 errata-xmlrpc 2026-01-19 01:15:51 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:0754 https://access.redhat.com/errata/RHSA-2026:0754
Comment 11 errata-xmlrpc 2026-01-19 01:32:50 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2026:0755 https://access.redhat.com/errata/RHSA-2026:0755
Comment 12 errata-xmlrpc 2026-01-28 00:23:13 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:1443 https://access.redhat.com/errata/RHSA-2026:1443
Comment 13 errata-xmlrpc 2026-01-28 00:29:14 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Via RHSA-2026:1441 https://access.redhat.com/errata/RHSA-2026:1441
Comment 14 errata-xmlrpc 2026-01-28 00:32:45 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2026:1442 https://access.redhat.com/errata/RHSA-2026:1442
Comment 15 errata-xmlrpc 2026-01-28 19:15:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.2 Advanced Update Support

Via RHSA-2026:1512 https://access.redhat.com/errata/RHSA-2026:1512
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