CVE-2023-52531
wifi: iwlwifi: mvm: Fix a memory corruption issue
Description
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.
INFO
Published Date :
March 2, 2024, 10:15 p.m.
Last Modified :
Dec. 11, 2024, 3:28 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the Linux kernel to a patched version.
- Reboot the system after applying the update.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-52531.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-52531 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-52531
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-52531 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-52531 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Dec. 11, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.9 up to (excluding) 5.15.135 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.57 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.5.7 *cpe:2.3:o:linux:linux_kernel:6.6:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.6:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.6:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.6:rc4:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/6b3223449c959a8be94a1f042288059e40fcccb0 No Types Assigned https://git.kernel.org/stable/c/6b3223449c959a8be94a1f042288059e40fcccb0 Patch Changed Reference Type https://git.kernel.org/stable/c/6b3223449c959a8be94a1f042288059e40fcccb0 No Types Assigned https://git.kernel.org/stable/c/6b3223449c959a8be94a1f042288059e40fcccb0 Patch Changed Reference Type https://git.kernel.org/stable/c/7c8faa31080342aec4903c9acb20caf82fcca1ef No Types Assigned https://git.kernel.org/stable/c/7c8faa31080342aec4903c9acb20caf82fcca1ef Patch Changed Reference Type https://git.kernel.org/stable/c/7c8faa31080342aec4903c9acb20caf82fcca1ef No Types Assigned https://git.kernel.org/stable/c/7c8faa31080342aec4903c9acb20caf82fcca1ef Patch Changed Reference Type https://git.kernel.org/stable/c/8ba438ef3cacc4808a63ed0ce24d4f0942cfe55d No Types Assigned https://git.kernel.org/stable/c/8ba438ef3cacc4808a63ed0ce24d4f0942cfe55d Patch Changed Reference Type https://git.kernel.org/stable/c/8ba438ef3cacc4808a63ed0ce24d4f0942cfe55d No Types Assigned https://git.kernel.org/stable/c/8ba438ef3cacc4808a63ed0ce24d4f0942cfe55d Patch Changed Reference Type https://git.kernel.org/stable/c/f06cdd8d4ba5252986f51f80cc30263636397128 No Types Assigned https://git.kernel.org/stable/c/f06cdd8d4ba5252986f51f80cc30263636397128 Patch Changed Reference Type https://git.kernel.org/stable/c/f06cdd8d4ba5252986f51f80cc30263636397128 No Types Assigned https://git.kernel.org/stable/c/f06cdd8d4ba5252986f51f80cc30263636397128 Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/6b3223449c959a8be94a1f042288059e40fcccb0 Added Reference https://git.kernel.org/stable/c/7c8faa31080342aec4903c9acb20caf82fcca1ef Added Reference https://git.kernel.org/stable/c/8ba438ef3cacc4808a63ed0ce24d4f0942cfe55d Added Reference https://git.kernel.org/stable/c/f06cdd8d4ba5252986f51f80cc30263636397128 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 28, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 02, 2024
Action Type Old Value New Value Added Description 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. Added Reference Linux https://git.kernel.org/stable/c/7c8faa31080342aec4903c9acb20caf82fcca1ef [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/6b3223449c959a8be94a1f042288059e40fcccb0 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/f06cdd8d4ba5252986f51f80cc30263636397128 [No types assigned] Added Reference Linux https://git.kernel.org/stable/c/8ba438ef3cacc4808a63ed0ce24d4f0942cfe55d [No types assigned]