CVE-2023-25567
GSS-NTLMSSP, a mechglue plugin for the GSSAPI library that implements NTLM authentication, has an out-of-bounds read when decoding target information prior to version 1.2.0.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.10%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
GSS-NTLMSSP, a mechglue plugin for the GSSAPI library that implements NTLM authentication, has an out-of-bounds read when decoding target information prior to version 1.2.0. The length of the `av_pair` is not checked properly for two of the elements which can trigger an out-of-bound read. The out-of-bounds read can be triggered via the main `gss_accept_sec_context` entry point and could cause a denial-of-service if the memory is unmapped. The issue is fixed in version 1.2.0.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.10% probability · 64th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- gss-ntlmssp project/gss-ntlmssp
- Source
- security-advisories@github.com
References
- https://github.com/gssapi/gss-ntlmssp/commit/025fbb756d44ffee8f847db4222ed6aa4bd1fbe4Patch, Third Party Advisory
- https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0Third Party Advisory
- https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-24pf-6prf-24chThird Party Advisory
- https://github.com/gssapi/gss-ntlmssp/commit/025fbb756d44ffee8f847db4222ed6aa4bd1fbe4Patch, Third Party Advisory
- https://github.com/gssapi/gss-ntlmssp/releases/tag/v1.2.0Third Party Advisory
- https://github.com/gssapi/gss-ntlmssp/security/advisories/GHSA-24pf-6prf-24chThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.