Security readout for executives and security teams
Plain-English summary
A Linux media driver accepts an invalid filter index and writes beyond its intended 32-bit storage. A local, low-privileged user could potentially compromise confidentiality, integrity, or availability on an affected system. Practical exposure depends on whether the RTL2830 DVB frontend driver and vulnerable functionality are present and reachable.
Executive priority
Treat as a high-priority, configuration-dependent local privilege risk. Patch exposed systems through normal emergency or accelerated kernel maintenance, especially shared or untrusted-user hosts. Internet-facing status alone does not determine exposure because the documented attack vector is local.
Technical view
rtl2830_pid_filter incorrectly allowed index 32 because its boundary check used “greater than 32.” The filters field contains only 32 bits, indexed 0–31, so bit operations at index 32 cause an out-of-bounds write. The kernel fix rejects indices greater than or equal to 32.
Likely exposure
Exposure is most likely on affected Linux systems using or loading the RTL2830 DVB frontend driver. The supplied CVSS vector requires local access and low privileges, with no user interaction. The bundle does not establish which distribution builds, configurations, or deployed devices expose the vulnerable path.
Exploitation context
The CVSS score is 7.8 and indicates potentially high confidentiality, integrity, and availability impact. The supplied record does not list this CVE in KEV and provides no evidence of active exploitation or a public exploit. Real-world exploitability is not established by the bundle.
Researcher notes
This is a one-boundary off-by-one error in a bit operation over a 32-bit field. The correction changes the condition from index greater than 32 to index greater than or equal to 32. The bundle does not provide exploitability analysis, confirmed attack chains, or complete distribution-specific version mapping.
Mitigation direction
- Install a vendor-supported kernel update that incorporates the referenced stable fix.
- Check Linux distribution and device-vendor advisories for exact affected and fixed package versions.
- Prioritize systems where the RTL2830 DVB frontend driver is loaded or required.
- Follow vendor guidance if immediate kernel replacement is operationally impractical.
Validation and detection
- Record the running kernel and installed kernel package versions.
- Determine whether the rtl2830 driver is built, available, or currently loaded.
- Compare the kernel source or vendor package against the referenced stable correction.
- Confirm patched systems reject filter indices of 32 or greater using safe regression testing.
- Reboot where required and verify the corrected kernel is running.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2024-47697 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9LinuxVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/8ffbe7d07b8e76193b151107878ddc1ccc94deb5CVE reference, Linux
- https://git.kernel.org/stable/c/883f794c6e498ae24680aead55c16f66b06cfc30CVE reference, Linux
- https://git.kernel.org/stable/c/badbd736e6649c4e6d7b4ff7e2b9857acfa9ea94CVE reference, Linux
- https://git.kernel.org/stable/c/86d920d2600c3a48efc2775c1666c1017eec6956CVE reference, Linux
- https://git.kernel.org/stable/c/3dba83d3c81de1368d15a39f22df7b53e306052fCVE reference, Linux
- https://git.kernel.org/stable/c/58f31be7dfbc0c84a6497ad51924949cf64b86a2CVE reference, Linux
- https://git.kernel.org/stable/c/7fd6aae7e53b94f4035b1bfce28b8dfa0d0ae470CVE reference, Linux
- https://git.kernel.org/stable/c/042b101d7bf70616c4967c286ffa6fcca65babfbCVE reference, Linux
- https://git.kernel.org/stable/c/46d7ebfe6a75a454a5fa28604f0ef1491f9d8d14CVE reference, Linux
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.htmlCVE reference, CVE
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.htmlCVE reference, CVE
- https://cert-portal.siemens.com/productcert/html/ssa-265688.htmlCVE reference, siemens-SADP
- https://cert-portal.siemens.com/productcert/html/ssa-355557.htmlCVE reference, siemens-SADP
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.