Exynos 980 Firmware: Out-of-bounds Read
CVE-2024-27382 is a high-severity out-of-bounds read vulnerability in Exynos 980 Firmware from Samsung, with a CVSS 3.1 base score of 7.1 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. There is no confirmed exploitation so far. EPSS estimates a 0.16% 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 980 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.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Samsung | Exynos 980 Firmware | Not specified in the record | Not stated |
| Samsung | Exynos 850 Firmware | Not specified in the record | Not stated |
| Samsung | Exynos 1280 Firmware | Not specified in the record | Not stated |
| Samsung | Exynos 1380 Firmware | Not specified in the record | Not stated |
| Samsung | Exynos 1330 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
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- NoneNothing can be modified.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H. Scored by NVD.
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 3.1 | 6.0 | Medium | CNA (mitre.org) |
| CVSS 3.1 | 7.1 | High | NVD |
Official description
An issue was discovered in Samsung Mobile Processor Exynos 980, Exynos 850, Exynos 1280, Exynos 1380, and Exynos 1330. In the function slsi_send_action_frame(), there is no input validation check on len coming from userspace, which can lead to a heap over-read.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
How developers prevent this class of flaw
- Use a language that provides appropriate memory abstractions.
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 980 Firmware
- 9.8 Critical severity
- 9.8 Critical severity
- 9.8 Critical severity
- 7.0 High severity
- 7.5 High severity
- 7.0 High severity
Recent Out-of-bounds Read vulnerabilities
- 7.1 High severity
- 8.1 High severity
- 7.1 High severity
- 7.1 High severity
- 7.1 High severity
- 7.1 High severity
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