Bug 2271498 (CVE-2021-47136) - CVE-2021-47136 kernel: net: zero-initialize tc skb extension on allocation
Summary: CVE-2021-47136 kernel: net: zero-initialize tc skb extension on allocation
Keywords:
Status: NEW
Alias: CVE-2021-47136
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 2271565
TreeView+ depends on / blocked
 
Reported: 2024-03-25 18:02 UTC by Mauro Matteo Cascella
Modified: 2024-06-09 15:47 UTC (History)
49 users (show)

Fixed In Version: kernel 5.10.42, kernel 5.12.9, kernel 5.13
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Description Mauro Matteo Cascella 2024-03-25 18:02:07 UTC
In the Linux kernel, the following vulnerability has been resolved:

net: zero-initialize tc skb extension on allocation

The Linux kernel CVE team has assigned CVE-2021-47136 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024032553-CVE-2021-47136-407d@gregkh/T

Comment 2 Alex 2024-06-09 15:47:10 UTC
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47136 is: CHECK	Maybe valid. Check manually. with impact LOW (that is approximation based on flags REMOTE KASAN NETWORK SKB  ; these flags parsed automatically based on patche 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.


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