CVE-2021-47055
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
mtd: require write permissions for locking and badblock ioctls
MEMLOCK, MEMUNLOCK and OTPLOCK modify protection bits. Thus require write permission. Depending on the hardware MEMLOCK might even be write-once, e.g. for SPI-NOR flashes with their WP# tied to GND. OTPLOCK is always write-once.
MEMSETBADBLOCK modifies the bad block table.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1c9f9125892a43901438bf704ada6b7019e2a884 < f4d28d8b9b0e7c4ae04214b8d7e0b0466ec6bcaf | affected |
| Linux | Linux | 583d42400532fbd6228b0254d7c732b771e4750d < 9625b00cac6630479c0ff4b9fafa88bee636e1f0 | affected |
| Linux | Linux | 389c74c218d3b182e9cd767e98cee0e0fd0dabaa < f73b29819c6314c0ba8b7d5892dfb03487424bee | affected |
| Linux | Linux | ab1a602a9cea98aa37b2e6851b168d2a2633a58d < 75ed985bd6c8ac1d4e673e93ea9d96c9908c1d37 | affected |
| Linux | Linux | 9a53e8bd59d9f070505e51d3fd19606a270e6b93 < 5880afefe0cb9b2d5e801816acd58bfe91a96981 | affected |
| Linux | Linux | f7e6b19bc76471ba03725fe58e0c218a3d6266c3 < 7b6552719c0ccbbea29dde4be141da54fdb5877e | affected |
| Linux | Linux | f7e6b19bc76471ba03725fe58e0c218a3d6266c3 < 077259f5e777c3c8821f6b41dee709fcda27306b | affected |
| Linux | Linux | f7e6b19bc76471ba03725fe58e0c218a3d6266c3 < a08799d3e8c8088640956237c183f83463c39668 | affected |
| Linux | Linux | f7e6b19bc76471ba03725fe58e0c218a3d6266c3 < 1e97743fd180981bef5f01402342bb54bf1c6366 | affected |
| Linux | Linux | 36a8b2f49235e63ab3f901fe12e1b6732f075c2e | affected |
| Linux | Linux | eb3d82abc335624a5e8ecfb75aba0b684e2dc4db | affected |
| Linux | Linux | 4.4.233 < 4.4.269 | affected |
| Linux | Linux | 4.9.233 < 4.9.269 | affected |
| Linux | Linux | 4.14.194 < 4.14.233 | affected |
| Linux | Linux | 4.19.139 < 4.19.191 | affected |
| Linux | Linux | 5.4.58 < 5.4.119 | affected |
| Linux | Linux | 5.7.15 < 5.8 | affected |
| Linux | Linux | 5.8.1 < 5.9 | affected |
| Linux | Linux | 5.9 | affected |
| Linux | Linux | 0 < 5.9 | unaffected |
| Linux | Linux | 4.4.269 <= 4.4.* | unaffected |
| Linux | Linux | 4.9.269 <= 4.9.* | unaffected |
| Linux | Linux | 4.14.233 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.191 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.119 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.37 <= 5.10.* | unaffected |
| Linux | Linux | 5.11.21 <= 5.11.* | unaffected |
| Linux | Linux | 5.12.4 <= 5.12.* | unaffected |
| Linux | Linux | 5.13 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
CVE Program Container
Additional References
- https://git.kernel.org/stable/c/f4d28d8b9b0e7c4ae04214b8d7e0b0466ec6bcaf
- https://git.kernel.org/stable/c/9625b00cac6630479c0ff4b9fafa88bee636e1f0
- https://git.kernel.org/stable/c/f73b29819c6314c0ba8b7d5892dfb03487424bee
- https://git.kernel.org/stable/c/75ed985bd6c8ac1d4e673e93ea9d96c9908c1d37
- https://git.kernel.org/stable/c/5880afefe0cb9b2d5e801816acd58bfe91a96981
- https://git.kernel.org/stable/c/7b6552719c0ccbbea29dde4be141da54fdb5877e
- https://git.kernel.org/stable/c/077259f5e777c3c8821f6b41dee709fcda27306b
- https://git.kernel.org/stable/c/a08799d3e8c8088640956237c183f83463c39668
- https://git.kernel.org/stable/c/1e97743fd180981bef5f01402342bb54bf1c6366
References
- https://git.kernel.org/stable/c/f4d28d8b9b0e7c4ae04214b8d7e0b0466ec6bcaf
- https://git.kernel.org/stable/c/9625b00cac6630479c0ff4b9fafa88bee636e1f0
- https://git.kernel.org/stable/c/f73b29819c6314c0ba8b7d5892dfb03487424bee
- https://git.kernel.org/stable/c/75ed985bd6c8ac1d4e673e93ea9d96c9908c1d37
- https://git.kernel.org/stable/c/5880afefe0cb9b2d5e801816acd58bfe91a96981
- https://git.kernel.org/stable/c/7b6552719c0ccbbea29dde4be141da54fdb5877e
- https://git.kernel.org/stable/c/077259f5e777c3c8821f6b41dee709fcda27306b
- https://git.kernel.org/stable/c/a08799d3e8c8088640956237c183f83463c39668
- https://git.kernel.org/stable/c/1e97743fd180981bef5f01402342bb54bf1c6366
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