In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix heap out-of-bounds write in krb5_authenticate() In…
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix heap out-of-bounds write in krb5_authenticate() In krb5_authenticate(), out_len is calculated to determine available headroom in response_buf for the incoming Kerberos AP-REP token. However, when SMB2_SESSION_SETUP is processed as a non-first element of a compounded SMB2 request, the calculation omits work->next_smb2_rsp_hdr_off. This causes out_len to overstate remaining buffer headroom by the cumulative size of prior responses in the compound chain. Consequently, the length check in ksmbd_krb5_authenticate() (*
Read at NIST National Vulnerability Database (CVE API 2.0)
- Vendor
- Microsoft, Linux kernel
- Product
- Active Directory / Entra ID, Linux kernel
- Fix
- available
- Exposure class
- Identity, Operating system
Why it ranks 23 (Routine)
- Exposed product class: identity
- Widely deployed vendor product (Microsoft)
- Fix available
- Recency: items published within 24 hours gain 15, within 72 hours 6, within 7 days 2.
Links
- NIST National Vulnerability Database (CVE API 2.0) (nvd.nist.gov)
- CVE-2026-99083 on this site · NVD · CVE.org · Vulnpedia
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