Linux Distros Unpatched Vulnerability : CVE-2026-89550

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the...

CVE-2026-89550

A flaw was found in the Linux kernel's SUNRPC svcauthgss module. A remote attacker could send a specially crafted Kerberos krb5 token with an insufficient length. This could lead to a division-by-zero error within the gsskrb5unwrapv2 function, resulting in a Denial of Service DoS for the affected...

DEBIAN-CVE-2026-89550

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

AZL-100776 CVE-2026-89550 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

CVE-2026-89550

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

CVE-2026-89550

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

UBUNTU-CVE-2026-89550

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

CVE-2026-89550

CVE-2026-89550 is a division-by-zero vulnerability in the Linux kernel's SUNRPC svcauth_gss module. The function svcauth_gss_unwrap_priv() enforces only an upper-bound check on the wire-supplied token length, allowing tokens of 16 bytes or less (the RFC 4121 header size) to reach gss_krb5_unwrap_...

CVE-2026-89550 SUNRPC: svcauth_gss: enforce krb5 token minimum length

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

CVE-2026-89550

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

CVE-2026-89550 SUNRPC: svcauth_gss: enforce krb5 token minimum length

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

EUVD-2026-76461

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

CVE-2026-89550: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: enforce krb5 token minimum length svcauthgssunwrappriv validates only an upper bound on the wire-supplied opaque length before handing the buffer to gssunwrap: if len xdrstreamremainingxdr goto unwrapfailed;...

CVE-2025-71120: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: SUNRPC: svcauthgss: avoid NULL deref on zero length gsstoken in gssreadproxyverf A zero length gsstoken results in pages == 0 and intoken-pages0 is NULL. The code unconditionally evaluates pageaddressintoken-pages0 for the initia...