CVE-2023-25567: high-severity vulnerability in gssapi gss-ntlmssp
GSS-NTLMSSP vulnerable to out-of-bounds read when decoding target information
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 1.1%
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/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
gssapi · gss-ntlmsspRelated CVEs — gssapi gss-ntlmssp
In the same product, most dangerous first.
CVE-2023-25564MEDIUMGSS-NTLMSSP vulnerable to memory corruption when decoding UTF16 stringsEPSS 1.9%CVE-2023-25566HIGHGSS-NTLMSSP vulnerable to memory leak when parsing usernamesEPSS 1.1%CVE-2023-25565HIGHGSS-NTLMSSP vulnerable to incorrect free when decoding target informationEPSS 1.1%CVE-2023-25563MEDIUMGSS-NTLMSSP vulnerable to multiple out-of-bounds reads when decoding NTLM fieldsEPSS 1.1%