CVE-2023-5345
Use-after-free in Linux kernel's fs/smb/client component
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A use-after-free vulnerability in the Linux kernel's fs/smb/client component can be exploited to achieve local privilege escalation.
In case of an error in smb3_fs_context_parse_param, ctx->password was freed but the field was not set to NULL which could lead to double free.
We recommend upgrading past commit e6e43b8aa7cd3c3af686caf0c2e11819a886d705.
Se puede explotar una vulnerabilidad de use-after-free en el componente fs/smb/client del kernel de Linux para lograr una escalada de privilegios local. En caso de un error en smb3_fs_context_parse_param, se liberó ctx->password pero el campo no se configuró en NULL, lo que podría provocar una doble liberación. Recomendamos actualizar al commit anterior e6e43b8aa7cd3c3af686caf0c2e11819a886d705.
A flaw was found in the SMB client component in the Linux kernel. In case of an error in smb3_fs_context_parse_param, `ctx->password` was freed, but the field was not set to NULL, potentially leading to a use-after-free vulnerability. This flaw allows a local user to crash or potentially escalate their privileges on the system.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2023-10-02 CVE Reserved
- 2023-10-03 CVE Published
- 2023-10-05 EPSS Updated
- 2024-08-02 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-416: Use After Free
CAPEC
- CAPEC-233: Privilege Escalation
References (8)
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-5345 | 2023-12-12 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2242172 | 2023-12-12 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | < 6.6 Search vendor "Linux" for product "Linux Kernel" and version " < 6.6" | - |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.6 Search vendor "Linux" for product "Linux Kernel" and version "6.6" | rc1 |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.6 Search vendor "Linux" for product "Linux Kernel" and version "6.6" | rc2 |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | 6.6 Search vendor "Linux" for product "Linux Kernel" and version "6.6" | rc3 |
Affected
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| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 37 Search vendor "Fedoraproject" for product "Fedora" and version "37" | - |
Affected
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| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 38 Search vendor "Fedoraproject" for product "Fedora" and version "38" | - |
Affected
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| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 39 Search vendor "Fedoraproject" for product "Fedora" and version "39" | - |
Affected
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