Bug 2282548 (CVE-2021-47259) - CVE-2021-47259 kernel: NFS: Fix use-after-free in nfs4_init_client()
Summary: CVE-2021-47259 kernel: NFS: Fix use-after-free in nfs4_init_client()
Keywords:
Status: NEW
Alias: CVE-2021-47259
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: 2282973
TreeView+ depends on / blocked
 
Reported: 2024-05-22 14:31 UTC by ybuenos
Modified: 2024-07-18 03:22 UTC (History)
50 users (show)

Fixed In Version: kernel 4.14.237, kernel 4.19.195, kernel 5.4.126, kernel 5.10.44, kernel 5.12.11, kernel 5.13
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Description ybuenos 2024-05-22 14:31:39 UTC
In the Linux kernel, the following vulnerability has been resolved:

NFS: Fix use-after-free in nfs4_init_client()

The Linux kernel CVE team has assigned CVE-2021-47259 to this issue.

Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024052147-CVE-2021-47259-921b@gregkh/T

Comment 3 Alex 2024-06-09 17:26:24 UTC
The result of automatic check (that is developed by Alexander Larkin) for this CVE-2021-47259 is: CHECK	Maybe valid. Check manually. with impact LOW (that is an approximation based on flags KASAN DISK INIT SIMPLEFIX UAF  ; 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.


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