media: av7110: prevent underflow in write_ts_to_decoder()
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: media: av7110: prevent underflow in write_ts_to_decoder() The buf[4] value comes from the user via ts_play(). It is a value in the u8 range. The final length we pass to av7110_ipack_instant_repack() is "len - (buf[4] + 1) - 4" so add a check to ensure that the length is not negative. It's not clear that passing a negative len value does anything bad necessarily, but it's not best practice. With the new bounds checking the "if (!len)" condition is no longer possible or required so remove that.
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 |
|---|---|---|---|---|---|
| Linux | Linux | 2.6.31 and later | 4.14.315, 4.19.283, 5.4.243, 5.10.211, 5.15.111, 6.1.28, 6.2.15, 6.3.2, 6.4 | Patch available | CNA |
- Linux VendorLinux Affected 2.6.31 and later Fixed in 4.14.315, 4.19.283, 5.4.243, 5.10.211, 5.15.111, 6.1.28, 6.2.15, 6.3.2, 6.4 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 4.14.315, 4.19.283, 5.4.243, 5.10.211, 5.15.111, 6.1.28, 6.2.15, 6.3.2, 6.4
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2023-54284
- 2026-10-03 Alias added: GHSA-rj9v-3cx4-5wvc
References
Other 9
- https://git.kernel.org/stable/c/6680af5be9f08d830567e9118f76d3e64684db8f
- https://git.kernel.org/stable/c/6606e2404ee9e20a3ae5b42fc3660d41b739ed3e
- https://git.kernel.org/stable/c/620b983589e0223876bf1463b01100a9c67b56ba
- https://git.kernel.org/stable/c/86ba65e5357bfbb6c082f68b265a292ee1bdde1d
- https://git.kernel.org/stable/c/ca4ce92e3ec9fd3c7c936b912b95c53331d5159c
- https://git.kernel.org/stable/c/423350af9e27f005611bd881b1df2cab66de943d
- https://git.kernel.org/stable/c/77eeb4732135c18c2fdfab80839645b393f3e774
- https://git.kernel.org/stable/c/7b93ab60fe9ed04be0ff155bc30ad39dea23e22b
- https://git.kernel.org/stable/c/eed9496a0501357aa326ddd6b71408189ed872eb
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Sources
- CVE-2023-54284 · CVE Program
- CVE-2023-54284 · NVD
- FIRST EPSS
- GHSA-rj9v-3cx4-5wvc · GitHub Advisory Database · CC BY 4.0
- CVE-2023-54284 · Red Hat security data · CC BY 4.0
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