CVE-2022-48828 Affecting kernel-cross-headers package, versions <0:4.18.0-372.118.1.el8_6


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (17th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL8-KERNELCROSSHEADERS-7683965
  • published14 Aug 2024
  • disclosed16 Jul 2024

Introduced: 16 Jul 2024

CVE-2022-48828  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:8 kernel-cross-headers to version 0:4.18.0-372.118.1.el8_6 or higher.
This issue was patched in RHSA-2024:5281.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-cross-headers package and not the kernel-cross-headers package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

NFSD: Fix ia_size underflow

iattr::ia_size is a loff_t, which is a signed 64-bit type. NFSv3 and NFSv4 both define file size as an unsigned 64-bit type. Thus there is a range of valid file size values an NFS client can send that is already larger than Linux can handle.

Currently decode_fattr4() dumps a full u64 value into ia_size. If that value happens to be larger than S64_MAX, then ia_size underflows. I'm about to fix up the NFSv3 behavior as well, so let's catch the underflow in the common code path: nfsd_setattr().

CVSS Scores

version 3.1