| Name | CVE-2011-1530 | 
| Description | The process_tgs_req function in do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.2 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted TGS request that triggers an error other than the KRB5_KDB_NOENTRY error. | 
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) | 
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status | 
|---|
| krb5 (PTS) | bullseye | 1.18.3-6+deb11u5 | fixed | 
|  | bullseye (security) | 1.18.3-6+deb11u7 | fixed | 
|  | bookworm | 1.20.1-2+deb12u4 | fixed | 
|  | bookworm (security) | 1.20.1-2+deb12u2 | fixed | 
|  | forky, sid, trixie | 1.21.3-5 | fixed | 
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs | 
|---|
| krb5 | source | lenny | (not affected) |  |  |  | 
| krb5 | source | squeeze | (not affected) |  |  |  | 
| krb5 | source | (unstable) | 1.10+dfsg~alpha1-7 |  |  |  | 
Notes
[squeeze] - krb5 <not-affected> (Only affecs 1.9 and higher)
[lenny] - krb5 <not-affected> (Only affecs 1.9 and higher)