Improper Validation of Array Index Affecting kernel-zfcpdump-core package, versions <0:5.14.0-284.73.1.el9_2


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELZFCPDUMPCORE-7450269
  • published15 Jul 2024
  • disclosed24 May 2024

Introduced: 24 May 2024

CVE-2021-47548  (opens in a new tab)
CWE-129  (opens in a new tab)

How to fix?

Upgrade RHEL:9 kernel-zfcpdump-core to version 0:5.14.0-284.73.1.el9_2 or higher.
This issue was patched in RHSA-2024:4533.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump-core package and not the kernel-zfcpdump-core package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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

ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()

The if statement: if (port >= DSAF_GE_NUM) return;

limits the value of port less than DSAF_GE_NUM (i.e., 8). However, if the value of port is 6 or 7, an array overflow could occur: port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;

because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).

To fix this possible array overflow, we first check port and if it is greater than or equal to DSAF_MAX_PORT_NUM, the function returns.

CVSS Scores

version 3.1