CVE-2023-25566
GSS-NTLMSSP vulnerable to memory leak when parsing usernames
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, a memory leak can be triggered when parsing usernames which can trigger a denial-of-service. The domain portion of a username may be overridden causing an allocated memory area the size of the domain name to be leaked. An attacker can leak memory via the main `gss_accept_sec_context` entry point, potentially causing a denial-of-service. This issue is fixed in version 1.2.0.
A flaw was found in GSS-NTLMSSP, a mechglue plugin for the GSSAPI library that implements NTLM authentication. A memory leak can be triggered when parsing usernames, triggering a denial of service. The domain portion of a username may be overridden, causing an allocated memory area the size of the domain name to be leaked. This flaw allows an attacker to leak memory via the main `gss_accept_sec_context` entry point, potentially causing a denial of service.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2023-02-07 CVE Reserved
- 2023-02-14 CVE Published
- 2024-08-02 CVE Updated
- 2024-10-05 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-401: Missing Release of Memory after Effective Lifetime
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0 | Third Party Advisory | |
| https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-mfm4-6g58-jw74 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/gssapi/gss-ntlmssp/commit/8660fb16474054e692a596e9c79670cd4d3954f4 | 2023-11-07 |
| URL | Date | SRC |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2023-25566 | 2023-05-16 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2172022 | 2023-05-16 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Gss-ntlmssp Project Search vendor "Gss-ntlmssp Project" | Gss-ntlmssp Search vendor "Gss-ntlmssp Project" for product "Gss-ntlmssp" | < 1.2.0 Search vendor "Gss-ntlmssp Project" for product "Gss-ntlmssp" and version " < 1.2.0" | - |
Affected
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