Heap-based buffer overflow in Samsung Galaxy S9
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.
Summary
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Samsung Galaxy S9 prior to January 2019 Security Update (SMR-JAN-2019 - SVE-2018-13467). User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the ASN.1 parser. When parsing ASN.1 strings, the process does not properly validate the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-7472.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Samsung | Galaxy S9 | prior to January 2019 Security Update (SMR-JAN-2019 - SVE-2018-13467) | — | No fix listed | CNA |
- Galaxy S9 VendorSamsung Affected prior to January 2019 Security Update (SMR-JAN-2019 - SVE-2018-13467) Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-6740
- 2026-10-03 Alias added: GHSA-pj75-2rhg-jmhv
References
More Samsung Galaxy S9 Firmware vulnerabilities
- TI-2019-04779 This vulnerability allows remote attackers to execute arbitrary code on vulnerable… CVSS 3.1CRITICAL 9.8
- TI-2019-04778 Open redirect in Samsung Galaxy S9 CVSS 3.1CRITICAL 9.3
Sources
- CVE-2019-6740 · CVE Program
- CVE-2019-6740 · NVD
- FIRST EPSS
- GHSA-pj75-2rhg-jmhv · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences