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ID

VAR-202410-1886


CVE

CVE-2024-49977


TITLE

Linux  of  Linux Kernel  Division by zero vulnerability in

Trust: 0.8

sources: JVNDB: JVNDB-2024-011238

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. Linux of Linux Kernel Is vulnerable to division by zero.Service operation interruption (DoS) It may be in a state. The RUGGEDCOM RST2428P is a Layer 2 Ethernet switch based on SINEC OS with up to 28 non-blocking interfaces. SCALANCE X switches are used to connect industrial components such as programmable logic controllers (PLCs) and human-machine interfaces (HMIs). Multiple vulnerabilities exist in third-party components prior to SIEMENS SINEC OS V3.2. These vulnerabilities could be exploited to corrupt values, leading to undefined behavior or security issues

Trust: 2.16

sources: NVD: CVE-2024-49977 // JVNDB: JVNDB-2024-011238 // CNVD: CNVD-2025-19350

IOT TAXONOMY

category:['ICS']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2025-19350

AFFECTED PRODUCTS

vendor:linuxmodel:kernelscope:gteversion:6.11

Trust: 1.0

vendor:linuxmodel:kernelscope:ltversion:6.10.14

Trust: 1.0

vendor:linuxmodel:kernelscope:gteversion:6.6.36

Trust: 1.0

vendor:linuxmodel:kernelscope:gteversion:5.15.162

Trust: 1.0

vendor:linuxmodel:kernelscope:ltversion:6.6.55

Trust: 1.0

vendor:linuxmodel:kernelscope:gteversion:5.10.221

Trust: 1.0

vendor:linuxmodel:kernelscope:gteversion:6.9.7

Trust: 1.0

vendor:linuxmodel:kernelscope:ltversion:6.1.113

Trust: 1.0

vendor:linuxmodel:kernelscope:ltversion:6.10

Trust: 1.0

vendor:linuxmodel:kernelscope:gteversion:6.10

Trust: 1.0

vendor:linuxmodel:kernelscope:ltversion:5.10.227

Trust: 1.0

vendor:linuxmodel:kernelscope:gteversion:6.1.96

Trust: 1.0

vendor:linuxmodel:kernelscope:ltversion:5.15.168

Trust: 1.0

vendor:linuxmodel:kernelscope:ltversion:6.11.3

Trust: 1.0

vendor:linuxmodel:kernelscope:eqversion:6.6.36 that's all 6.6.55

Trust: 0.8

vendor:linuxmodel:kernelscope:eqversion:5.15.162 that's all 5.15.168

Trust: 0.8

vendor:linuxmodel:kernelscope:eqversion:6.1.96 that's all 6.1.113

Trust: 0.8

vendor:linuxmodel:kernelscope:eqversion:6.10 that's all 6.10.14

Trust: 0.8

vendor:linuxmodel:kernelscope:eqversion:5.10.221 that's all 5.10.227

Trust: 0.8

vendor:linuxmodel:kernelscope:eqversion:6.11 that's all 6.11.3

Trust: 0.8

vendor:linuxmodel:kernelscope:eqversion:6.9.7 that's all 6.10

Trust: 0.8

vendor:linuxmodel:kernelscope:eqversion: -

Trust: 0.8

vendor:siemensmodel:ruggedcom rst2428pscope:ltversion:v3.2

Trust: 0.6

vendor:siemensmodel:scalance xc-300/xr-300/xc-400/xr-500wg/xr-500 familyscope:ltversion:v3.2

Trust: 0.6

vendor:siemensmodel:scalance xcm-/xrm-/xch-/xrh-300 familyscope:ltversion:v3.2

Trust: 0.6

sources: CNVD: CNVD-2025-19350 // JVNDB: JVNDB-2024-011238 // NVD: CVE-2024-49977

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2024-49977
value: MEDIUM

Trust: 1.0

NVD: CVE-2024-49977
value: MEDIUM

Trust: 0.8

CNVD: CNVD-2025-19350
value: HIGH

Trust: 0.6

CNVD: CNVD-2025-19350
severity: HIGH
baseScore: 7.2
vectorString: AV:L/AC:L/AU:N/C:C/I:C/A:C
accessVector: LOCAL
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: COMPLETE
availabilityImpact: COMPLETE
exploitabilityScore: 3.9
impactScore: 10.0
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

nvd@nist.gov: CVE-2024-49977
baseSeverity: MEDIUM
baseScore: 5.5
vectorString: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: 1.8
impactScore: 3.6
version: 3.1

Trust: 1.0

NVD: CVE-2024-49977
baseSeverity: MEDIUM
baseScore: 5.5
vectorString: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
attackVector: LOCAL
attackComplexity: LOW
privilegesRequired: LOW
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: NONE
integrityImpact: NONE
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: CNVD: CNVD-2025-19350 // JVNDB: JVNDB-2024-011238 // NVD: CVE-2024-49977

PROBLEMTYPE DATA

problemtype:CWE-369

Trust: 1.0

problemtype:Division by zero (CWE-369) [NVD evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2024-011238 // NVD: CVE-2024-49977

PATCH

title:Fix zero-division error when disabling tc cbs (e33fe25) Linux Kernelurl:https://git.kernel.org/stable/c/03582f4752427f60817d896f1a827aff772bd31e

Trust: 0.8

title:Patch for Multiple vulnerabilities exist in third-party components of SIEMENS SINEC OS V3.2 and earlierurl:https://www.cnvd.org.cn/patchInfo/show/723061

Trust: 0.6

sources: CNVD: CNVD-2025-19350 // JVNDB: JVNDB-2024-011238

EXTERNAL IDS

db:NVDid:CVE-2024-49977

Trust: 2.6

db:SIEMENSid:SSA-355557

Trust: 1.6

db:SIEMENSid:SSA-265688

Trust: 1.0

db:JVNDBid:JVNDB-2024-011238

Trust: 0.8

db:CNVDid:CNVD-2025-19350

Trust: 0.6

sources: CNVD: CNVD-2025-19350 // JVNDB: JVNDB-2024-011238 // NVD: CVE-2024-49977

REFERENCES

url:https://cert-portal.siemens.com/productcert/html/ssa-355557.html

Trust: 1.6

url:https://git.kernel.org/stable/c/e297a2bf56d12fd7f91a0c209eb6ea84361f3368

Trust: 1.0

url:https://cert-portal.siemens.com/productcert/html/ssa-265688.html

Trust: 1.0

url:https://git.kernel.org/stable/c/b0da9504a528f05f97d926b4db74ff21917a33e9

Trust: 1.0

url:https://git.kernel.org/stable/c/03582f4752427f60817d896f1a827aff772bd31e

Trust: 1.0

url:https://git.kernel.org/stable/c/e33fe25b1efe4f2e6a5858786dbc82ae4c44ed4c

Trust: 1.0

url:https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Trust: 1.0

url:https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Trust: 1.0

url:https://git.kernel.org/stable/c/837d9df9c0792902710149d1a5e0991520af0f93

Trust: 1.0

url:https://git.kernel.org/stable/c/675faf5a14c14a2be0b870db30a70764df81e2df

Trust: 1.0

url:https://git.kernel.org/stable/c/5d43e1ad4567d67af2b42d3ab7c14152ffed25c6

Trust: 1.0

url:https://nvd.nist.gov/vuln/detail/cve-2024-49977

Trust: 0.8

sources: CNVD: CNVD-2025-19350 // JVNDB: JVNDB-2024-011238 // NVD: CVE-2024-49977

SOURCES

db:CNVDid:CNVD-2025-19350
db:JVNDBid:JVNDB-2024-011238
db:NVDid:CVE-2024-49977

LAST UPDATE DATE

2026-06-19T22:08:31.090000+00:00


SOURCES UPDATE DATE

db:CNVDid:CNVD-2025-19350date:2025-08-22T00:00:00
db:JVNDBid:JVNDB-2024-011238date:2024-10-28T06:25:00
db:NVDid:CVE-2024-49977date:2026-05-12T12:17:19.227

SOURCES RELEASE DATE

db:CNVDid:CNVD-2025-19350date:2025-08-12T00:00:00
db:JVNDBid:JVNDB-2024-011238date:2024-10-28T00:00:00
db:NVDid:CVE-2024-49977date:2024-10-21T18:15:18.417