Allocation of Resources Without Limits or Throttling Affecting bpftool package, versions <0:5.14.0-162.12.1.el9_1
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Test your applications- Snyk ID SNYK-ALMALINUX9-BPFTOOL-5656140
- published 28 May 2023
- disclosed 23 Jan 2023
Introduced: 23 Jan 2023
CVE-2022-43945 Open this link in a new tabHow to fix?
Upgrade AlmaLinux:9
bpftool
to version 0:5.14.0-162.12.1.el9_1 or higher.
This issue was patched in ALSA-2023:0334
.
NVD Description
Note: Versions mentioned in the description apply only to the upstream bpftool
package and not the bpftool
package as distributed by AlmaLinux
.
See How to fix?
for AlmaLinux:9
relevant fixed versions and status.
The Linux kernel NFSD implementation prior to versions 5.19.17 and 6.0.2 are vulnerable to buffer overflow. NFSD tracks the number of pages held by each NFSD thread by combining the receive and send buffers of a remote procedure call (RPC) into a single array of pages. A client can force the send buffer to shrink by sending an RPC message over TCP with garbage data added at the end of the message. The RPC message with garbage data is still correctly formed according to the specification and is passed forward to handlers. Vulnerable code in NFSD is not expecting the oversized request and writes beyond the allocated buffer space. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- https://errata.almalinux.org/9/ALSA-2023-0300.html
- https://errata.almalinux.org/9/ALSA-2023-0334.html
- https://errata.almalinux.org/8/ALSA-2023-0832.html
- https://errata.almalinux.org/8/ALSA-2023-0854.html
- https://access.redhat.com/security/cve/CVE-2022-43945
- https://access.redhat.com/errata/RHSA-2023:0300
- https://access.redhat.com/errata/RHSA-2023:0334
- https://access.redhat.com/errata/RHSA-2023:0832
- https://access.redhat.com/errata/RHSA-2023:0854
- http://packetstormsecurity.com/files/171289/Kernel-Live-Patch-Security-Notice-LNS-0092-1.html
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f90497a16e434c2211c66e3de8e77b17868382b8
- https://security.netapp.com/advisory/ntap-20221215-0006/