7.8
HIGH
CVE-2023-52440
CIFS Kernel Buffer Overflow
Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob() If authblob->SessionKey.Length is bigger than session key size(CIFS_KEY_SIZE), slub overflow can happen in key exchange codes. cifs_arc4_crypt copy to session key array from SessionKey from client.

INFO

Published Date :

Feb. 21, 2024, 8:15 a.m.

Last Modified :

May 28, 2024, 8:16 p.m.

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2023-52440 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel

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-2023-52440 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-52440 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.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 28, 2024

    Action Type Old Value New Value
    Removed Reference kernel.org http://www.openwall.com/lists/oss-security/2024/03/18/2
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 01, 2024

    Action Type Old Value New Value
    Added Reference kernel.org http://www.openwall.com/lists/oss-security/2024/03/18/2 [No types assigned]
  • Initial Analysis by [email protected]

    Mar. 15, 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
    Changed Reference Type https://git.kernel.org/stable/c/30fd6521b2fbd9b767e438e31945e5ea3e3a2fba No Types Assigned https://git.kernel.org/stable/c/30fd6521b2fbd9b767e438e31945e5ea3e3a2fba Patch
    Changed Reference Type https://git.kernel.org/stable/c/4b081ce0d830b684fdf967abc3696d1261387254 No Types Assigned https://git.kernel.org/stable/c/4b081ce0d830b684fdf967abc3696d1261387254 Patch
    Changed Reference Type https://git.kernel.org/stable/c/7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4 No Types Assigned https://git.kernel.org/stable/c/7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4 Patch
    Changed Reference Type https://git.kernel.org/stable/c/bd554ed4fdc3d38404a1c43d428432577573e809 No Types Assigned https://git.kernel.org/stable/c/bd554ed4fdc3d38404a1c43d428432577573e809 Patch
    Changed Reference Type https://git.kernel.org/stable/c/ecd7e1c562cb08e41957fcd4b0e404de5ab38e20 No Types Assigned https://git.kernel.org/stable/c/ecd7e1c562cb08e41957fcd4b0e404de5ab38e20 Patch
    Added CWE NIST CWE-119
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.17.0 up to (excluding) 6.1.52 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2.0 up to (excluding) 6.4.15 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.5.0 up to (excluding) 6.5.2
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Feb. 21, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob() If authblob->SessionKey.Length is bigger than session key size(CIFS_KEY_SIZE), slub overflow can happen in key exchange codes. cifs_arc4_crypt copy to session key array from SessionKey from client.
    Added Reference Linux https://git.kernel.org/stable/c/bd554ed4fdc3d38404a1c43d428432577573e809 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/30fd6521b2fbd9b767e438e31945e5ea3e3a2fba [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/7f1d6cb0eb6af3a8088dc24b7ddee9a9711538c4 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/ecd7e1c562cb08e41957fcd4b0e404de5ab38e20 [No types assigned]
    Added Reference Linux https://git.kernel.org/stable/c/4b081ce0d830b684fdf967abc3696d1261387254 [No types assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
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