Bug 2283457 (CVE-2021-47572) - CVE-2021-47572 kernel: net: nexthop: fix null pointer dereference when IPv6 is not enabled
Summary: CVE-2021-47572 kernel: net: nexthop: fix null pointer dereference when IPv6 i...
Keywords:
Status: NEW
Alias: CVE-2021-47572
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 2283496
TreeView+ depends on / blocked
 
Reported: 2024-05-27 11:11 UTC by ybuenos
Modified: 2025-01-22 13:36 UTC (History)
50 users (show)

Fixed In Version: kernel 5.4.163, kernel 5.10.83, kernel 5.15.6, kernel 5.16
Clone Of:
Environment:
Last Closed:
Embargoed:

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Description ybuenos 2024-05-27 11:11:41 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: nexthop: fix null pointer dereference when IPv6 is not enabled

The Linux kernel CVE team has assigned CVE-2021-47572 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052454-CVE-2021-47572-50bc@gregkh/T
Comment 1 Alex 2024-06-09 17:52:38 UTC 
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47572 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags REMOTE DANGER NULLPTR ERRORPATH NETWORK  ; these flags parsed automatically based on patch data). Such automatic check happens only for Low/Moderates (and only when not from reporter, but parsing already existing CVE). Highs always checked manually (I check it myself and then we check it again in Remediation team). In rare cases some of the Moderates could be increased to High later.
Comment 4 Keith Grant 2025-01-22 13:36:29 UTC 
The fixes for this flaw were included in RHEL 9.1 GA, see https://access.redhat.com/errata/RHSA-2022:8267
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