Linux Kernel 5.15 ksmbd auth.c ksmbd_decode_ntlmssp_auth_blob nt_len memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.7 | $0-$5k | 0.00 |
A vulnerability was found in Linux Kernel 5.15 (Operating System). It has been declared as critical. This vulnerability affects the function ksmbd_decode_ntlmssp_auth_blob
of the file auth.c of the component ksmbd. The manipulation of the argument nt_len
with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect availability.
The weakness was disclosed 02/03/2023. The advisory is available at spinics.net. This vulnerability was named CVE-2023-0210 since 01/11/2023. Technical details and also a public exploit are known.
It is possible to download the exploit at seclists.org. It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k.
Applying a patch is able to eliminate this problem. The bugfix is ready for download at spinics.net.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.5VulDB Meta Temp Score: 6.7
VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
0-Day Time: 🔍
Patch: spinics.net
Timeline
01/11/2023 🔍02/03/2023 🔍
02/03/2023 🔍
02/03/2023 🔍
Sources
Vendor: kernel.orgAdvisory: spinics.net
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2023-0210 (🔍)
scip Labs: https://www.scip.ch/en/?labs.20161013
Entry
Created: 02/03/2023 14:18Changes: 02/03/2023 14:18 (47)
Complete: 🔍
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