UBUNTU-CVE-2021-47055
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.
02 / AFFECTED SOFTWARE
Affected packages
50 explicit affected versions
6 explicit affected versions
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6 explicit affected versions
1 explicit affected versions
7 explicit affected versions
67 explicit affected versions
27 explicit affected versions
47 explicit affected versions
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35 explicit affected versions
18 explicit affected versions
77 explicit affected versions
13 explicit affected versions
4 explicit affected versions
23 explicit affected versions
102 explicit affected versions
1 explicit affected versions
21 explicit affected versions
16 explicit affected versions
10 explicit affected versions
7 explicit affected versions
12 explicit affected versions
12 explicit affected versions
1 explicit affected versions
7 explicit affected versions
12 explicit affected versions
29 explicit affected versions
37 explicit affected versions
12 explicit affected versions
29 explicit affected versions
22 explicit affected versions
168 explicit affected versions
37 explicit affected versions
101 explicit affected versions
10 explicit affected versions
26 explicit affected versions
13 explicit affected versions
29 explicit affected versions
13 explicit affected versions
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23 explicit affected versions
10 explicit affected versions
46 explicit affected versions
11 explicit affected versions
12 explicit affected versions
69 explicit affected versions
7 explicit affected versions
12 explicit affected versions
29 explicit affected versions
25 explicit affected versions
10 explicit affected versions
26 explicit affected versions
13 explicit affected versions
16 explicit affected versions
3 explicit affected versions
51 explicit affected versions
23 explicit affected versions
12 explicit affected versions
27 explicit affected versions
1 explicit affected versions
26 explicit affected versions
8 explicit affected versions
5 explicit affected versions
19 explicit affected versions
8 explicit affected versions
20 explicit affected versions
10 explicit affected versions
13 explicit affected versions
7 explicit affected versions
23 explicit affected versions
10 explicit affected versions
12 explicit affected versions
18 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
37 explicit affected versions
38 explicit affected versions
9 explicit affected versions
11 explicit affected versions
145 explicit affected versions
19 explicit affected versions
7 explicit affected versions
78 explicit affected versions
3 explicit affected versions
77 explicit affected versions
54 explicit affected versions
4 explicit affected versions
45 explicit affected versions
19 explicit affected versions
43 explicit affected versions
125 explicit affected versions
92 explicit affected versions
10 explicit affected versions
8 explicit affected versions
14 explicit affected versions
22 explicit affected versions
4 explicit affected versions
9 explicit affected versions
1 explicit affected versions
1 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES