CVE-2024-49977

MEDIUM EPSS 15.9%
Published Oct 21, 20241y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 21, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: Fix zero-division error when disabling tc cbs The commit b8c43360f6e4 ("net: stmmac: No need to calculate speed divider when offload is disabled") allows the "port_transmit_rate_kbps" to be set to a value of 0, which is then passed to the "div_s64" function when tc-cbs is disabled. This leads to a zero-division error. When tc-cbs is disabled, the idleslope, sendslope, and credit values the credit values are not required to be configured. Therefore, adding a return statement after setting the txQ mode to DCB when tc-cbs is disabled would prevent a zero-division error.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
15.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-369

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥5.10.221  –  <5.10.227
linuxlinux_kernel*≥5.15.162  –  <5.15.168
linuxlinux_kernel*≥6.1.96  –  <6.1.113
linuxlinux_kernel*≥6.6.36  –  <6.6.55
linuxlinux_kernel*≥6.9.7  –  <6.10
linuxlinux_kernel*≥6.10  –  <6.10.14
linuxlinux_kernel*≥6.11  –  <6.11.3

References 11

  • cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-265688.html
  • cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-355557.html
  • git.kernel.org https://git.kernel.org/stable/c/03582f4752427f60817d896f1a827aff772bd31e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5d43e1ad4567d67af2b42d3ab7c14152ffed25c6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/675faf5a14c14a2be0b870db30a70764df81e2df
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/837d9df9c0792902710149d1a5e0991520af0f93
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b0da9504a528f05f97d926b4db74ff21917a33e9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e297a2bf56d12fd7f91a0c209eb6ea84361f3368
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e33fe25b1efe4f2e6a5858786dbc82ae4c44ed4c
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/03582f4752427f60817d896f1a827aff772bd31e
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/5d43e1ad4567d67af2b42d3ab7c14152ffed25c6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/675faf5a14c14a2be0b870db30a70764df81e2df
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/837d9df9c0792902710149d1a5e0991520af0f93
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b0da9504a528f05f97d926b4db74ff21917a33e9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e297a2bf56d12fd7f91a0c209eb6ea84361f3368
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e33fe25b1efe4f2e6a5858786dbc82ae4c44ed4c
    Patch