Vulnerability in Gssapi Gss-Ntlmssp
CVE-2023-25565
GSS-NTLMSSP is a mechglue plugin for the GSSAPI library that implements NTLM authentication. Prior to version 1.2.0, an incorrect free when decoding target information can trigger a denial of service. The error condition incorrectly assumes the `cb` and `sh` buffers contain a copy of the data that needs to be freed. However, that is not the case. This vulnerability can be triggered via the main `gss_accept_sec_context` entry point. This will likely trigger an assertion failure in `free`, causing a denial-of-service. This issue is fixed in version 1.2.0.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.011 (65.2th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 65.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Gssapi Gss-Ntlmssp — versions < 1.2.0
- Gss-Ntlmssp Project
Weakness classification (CWE)
References
- github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-7q7f-wqcg-mvfg (Third Party Advisory)
- github.com/gssapi/gss-ntlmssp/commit/c16100f60907a2de92bcb676f303b81facee0f64 (Patch, Third Party Advisory)
- github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0 (Third Party Advisory)
Frequently asked questions
- What is CVE-2023-25565?
- CVE-2023-25565 is a high-severity vulnerability in Gssapi Gss-Ntlmssp, classified under CWE-590. CVSS score: 7.5/10. Published 2023-02-14.
- How severe is CVE-2023-25565?
- High severity. CVSS v3 base score is 7.5 out of 10.