CVE-2023-52531
published 2024-03-02CVE-2023-52531: In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: Fix a memory corruption issue A few lines above, space is kzalloc()'ed…
PriorityP336high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.24%
14.8th percentile
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: Fix a memory corruption issue
A few lines above, space is kzalloc()'ed for:
sizeof(struct iwl_nvm_data) +
sizeof(struct ieee80211_channel) +
sizeof(struct ieee80211_rate)
'mvm->nvm_data' is a 'struct iwl_nvm_data', so it is fine.
At the end of this structure, there is the 'channels' flex array.
Each element is of type 'struct ieee80211_channel'.
So only 1 element is allocated in this array.
When doing:
mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels;
We point at the first element of the 'channels' flex array.
So this is fine.
However, when doing:
mvm->nvm_data->bands[0].bitrates =
(void *)((u8 *)mvm->nvm_data->channels + 1);
because of the "(u8 *)" cast, we add only 1 to the address of the beginning
of the flex array.
It is likely that we want point at the 'struct ieee80211_rate' allocated
just after.
Remove the spurious casting so that the pointer arithmetic works as
expected.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.64-1 (bookworm) | linux 6.1.64-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c < 7c8faa31080342aec4903c9acb20caf82fcca1ef | 7c8faa31080342aec4903c9acb20caf82fcca1ef |
| linux | linux | >= 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c < 6b3223449c959a8be94a1f042288059e40fcccb0 | 6b3223449c959a8be94a1f042288059e40fcccb0 |
| linux | linux | >= 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c < f06cdd8d4ba5252986f51f80cc30263636397128 | f06cdd8d4ba5252986f51f80cc30263636397128 |
| linux | linux | >= 8ca151b568b67a7b72dcfc6ee6ea7c107ddd795c < 8ba438ef3cacc4808a63ed0ce24d4f0942cfe55d | 8ba438ef3cacc4808a63ed0ce24d4f0942cfe55d |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.1.64-1 | 6.1.64-1 |
| linux | linux_kernel | >= 0 < 6.5.8-1 | 6.5.8-1 |
| linux | linux_kernel | >= 0 < 6.5.8-1 | 6.5.8-1 |
| linux | linux_kernel | >= 0 < 5.4.0-200.220 | 5.4.0-200.220 |
| linux | linux_kernel | >= 0 < 4.4.0-261.295 | 4.4.0-261.295 |
| linux | linux_kernel | >= 0 < 4.15.0-231.243 | 4.15.0-231.243 |
| linux | linux_kernel | >= 3.9 < 5.15.135 | 5.15.135 |
| linux | linux_kernel | >= 5.16 < 6.1.57 | 6.1.57 |
| linux | linux_kernel | >= 6.2 < 6.5.7 | 6.5.7 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
vendor_ubuntu7.8HIGH
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wifi: iwlwifi: mvm: Fix a memory corruption issue
A few lines above, space is kz
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CVE-2023-52531 [HIGH] CWE-787 GHSA-mvcc-fjcm-33jm: In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: Fix a memory corruption issue
A few lines above, space is kz
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: Fix a memory corruption issue
A few lines above, space is kzalloc()'ed for:
sizeof(struct iwl_nvm_data) +
sizeof(struct ieee80211_channel) +
sizeof(struct ieee80211_rate)
'mvm->nvm_data' is a 'struct iwl_nvm_data', so it is fine.
At the end of this structure, there is the 'channels' flex array.
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So only 1 element is allocated in this array.
When doing:
mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels;
We point at the first element of the 'channels' flex array.
So this is fine.
However, when doing:
mvm->nvm_data->bands[0].bitrates =
(void *)((u8 *)mvm->nvm_data->channels + 1);
because of the "(u8 *)" cast, we add only 1 to the address of
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CVE-2023-52531 [HIGH] CVE-2023-52531: In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: Fix a memory corruption issue A few lines above, space is kzal
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: Fix a memory corruption issue A few lines above, space is kzalloc()'ed for: sizeof(struct iwl_nvm_data) + sizeof(struct ieee80211_channel) + sizeof(struct ieee80211_rate) 'mvm->nvm_data' is a 'struct iwl_nvm_data', so it is fine. At the end of this structure, there is the 'channels' flex array. Each element is of type 'struct ieee80211_channel'. So only 1 element is allocated in this array. When doing: mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels; We point at the first element of the 'channels' flex array. So this is fine. However, when doing: mvm->nvm_data->bands[0].bitrates = (void *)((u8 *)mvm->nvm_data->channels + 1); because of the "(u8 *)" cast, we add only 1 to the address of the be
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Android drivers;
- Serial ATA and Parallel ATA drivers;
- ATM drivers;
- Drivers core;
- CPU frequency scaling framework;
- Device frequency scaling framew
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kernel contained an integer overflow vulnerability. A local attacker could
use this to cause a denial of service (system crash). (CVE-2022-36402)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- ARM64 architecture;
- PowerPC architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Android drivers;
- Serial ATA and Parallel ATA drivers;
- ATM drivers;
- Drivers core;
- CPU frequency scaling framework;
- Device frequency scaling framew
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kernel: wifi: iwlwifi: mvm: Fix a memory corruption issue
vendor_redhat·2024-03-02·CVSS 7.8
CVE-2023-52531 [HIGH] CWE-400 kernel: wifi: iwlwifi: mvm: Fix a memory corruption issue
kernel: wifi: iwlwifi: mvm: Fix a memory corruption issue
In the Linux kernel, the following vulnerability has been resolved:
wifi: iwlwifi: mvm: Fix a memory corruption issue
A few lines above, space is kzalloc()'ed for:
sizeof(struct iwl_nvm_data) +
sizeof(struct ieee80211_channel) +
sizeof(struct ieee80211_rate)
'mvm->nvm_data' is a 'struct iwl_nvm_data', so it is fine.
At the end of this structure, there is the 'channels' flex array.
Each element is of type 'struct ieee80211_channel'.
So only 1 element is allocated in this array.
When doing:
mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels;
We point at the first element of the 'channels' flex array.
So this is fine.
However, when doing:
mvm->nvm_data->bands[0].bitrates =
(void *)((u8 *)mvm->nvm_data->channels + 1);
because o
Debian
CVE-2023-52531: linux - In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwi...
vendor_debian·2023·CVSS 7.8
CVE-2023-52531 [HIGH] CVE-2023-52531: linux - In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwi...
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: Fix a memory corruption issue A few lines above, space is kzalloc()'ed for: sizeof(struct iwl_nvm_data) + sizeof(struct ieee80211_channel) + sizeof(struct ieee80211_rate) 'mvm->nvm_data' is a 'struct iwl_nvm_data', so it is fine. At the end of this structure, there is the 'channels' flex array. Each element is of type 'struct ieee80211_channel'. So only 1 element is allocated in this array. When doing: mvm->nvm_data->bands[0].channels = mvm->nvm_data->channels; We point at the first element of the 'channels' flex array. So this is fine. However, when doing: mvm->nvm_data->bands[0].bitrates = (void *)((u8 *)mvm->nvm_data->channels + 1); because of the "(u8 *)" cast, we add only 1 to the address of the be
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://git.kernel.org/stable/c/6b3223449c959a8be94a1f042288059e40fcccb0https://git.kernel.org/stable/c/7c8faa31080342aec4903c9acb20caf82fcca1efhttps://git.kernel.org/stable/c/8ba438ef3cacc4808a63ed0ce24d4f0942cfe55dhttps://git.kernel.org/stable/c/f06cdd8d4ba5252986f51f80cc30263636397128https://git.kernel.org/stable/c/6b3223449c959a8be94a1f042288059e40fcccb0https://git.kernel.org/stable/c/7c8faa31080342aec4903c9acb20caf82fcca1efhttps://git.kernel.org/stable/c/8ba438ef3cacc4808a63ed0ce24d4f0942cfe55dhttps://git.kernel.org/stable/c/f06cdd8d4ba5252986f51f80cc30263636397128
2024-03-02
Published