Exynos 2100 Firmware: Improper Validation of Specified Quantity in Input
CVE-2024-39343 is a high-severity improper validation of specified quantity in input vulnerability in Exynos 2100 Firmware from Samsung, with a CVSS 3.1 base score of 7.0 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 0.37% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Check which version of Exynos 2100 Firmware you run against the affected versions below, and install the vendor's latest release.
- Read the advisory on semiconductor.samsung.com for workarounds and exact fixed builds.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Samsung | Exynos 2100 Firmware | Not specified in the record | Not stated |
| Samsung | Exynos 1280 Firmware | Not specified in the record | Not stated |
| Samsung | Exynos 1330 Firmware | Not specified in the record | Not stated |
| Samsung | Exynos 1380 Firmware | Not specified in the record | Not stated |
| Samsung | Exynos 1480 Firmware | Not specified in the record | Not stated |
| Samsung | Exynos 2400 Firmware | Not specified in the record | Not stated |
| Samsung | Exynos 9110 Firmware | Not specified in the record | Not stated |
| Samsung | Exynos Modem 5123 Firmware | Not specified in the record | Not stated |
| Samsung | Exynos Modem 5300 Firmware | Not specified in the record | Not stated |
Version data comes from NVD's product matching. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- HighSuccess depends on conditions outside the attacker's control.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- LowSome restricted data can be read.
- Integrity
- LowLimited modification of data is possible.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H. Scored by CNA (mitre.org).
Official description
An issue was discovered in Samsung Mobile Processor and Wearable Processor Exynos 2100, 1280, 2200, 1330, 1380, 1480, 2400, 9110, Modem 5123, and Modem 5300. The baseband software does not properly check the length specified by the MM (Mobility Management) module, which can lead to Denial of Service.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Improper Validation of Specified Quantity in Input
The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.
More Improper Validation of Specified Quantity in Input vulnerabilities (CWE-1284)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: partial).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Exynos 2100 Firmware
- 9.8 Critical severity
- 7.5 High severity
- 10.0 Critical severity
- 9.1 Critical severity
- 7.5 High severity
- 7.5 High severity
Recent Improper Validation of Specified Quantity in Input vulnerabilities
- 9.6 Critical severity
- 7.5 High severity
- 7.3 High severity
- 9.1 Critical severity
- 8.6 High severity
- 8.8 High severity
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