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Fencer Intel
critical 10.0

CVE-2011-0285 in the critical feed json

The process_chpw_request function in schpw.c in the password-changing functionality in kadmind in MIT Kerberos 5 (aka krb5) 1.7 through 1.9…

published 2011-04-15 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-0311

cvss
10.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
20.8%
EPSS 20.8% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB

Summary

The process_chpw_request function in schpw.c in the password-changing functionality in kadmind in MIT Kerberos 5 (aka krb5) 1.7 through 1.9 frees an invalid pointer, which allows remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via a crafted request that triggers an error condition.

Patch / fix

  • krb5 Debian 14, Debian 13, Debian 12 1.9.1+dfsg-1

debian advisories DEBIAN-CVE-2011-0285

  • krb5 RHEL 6 1.8.2-3.el6_0.7
  • krb5-libs RHEL 6 1.8.2-3.el6_0.7
  • krb5-server RHEL 6 1.8.2-3.el6_0.7
  • krb5-server-ldap RHEL 6 1.8.2-3.el6_0.7
  • krb5-workstation RHEL 6 1.8.2-3.el6_0.7
  • krb5-pkinit-openssl RHEL 6 1.8.2-3.el6_0.7

red hat advisories RHSA-2011:0447

  • krb5 openSUSE Tumbleweed 1.15-1.1

opensuse advisories openSUSE-SU-2024:10004-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-0285 updated cvss 5.0

krb5: kadmind invalid pointer free() (MITKRB5-SA-004)

  • Red Hat Enterprise Linux Desktop (v. 6) krb5 1.8.2-3.el6_0.7, krb5-libs 1.8.2-3.el6_0.7, krb5-workstation 1.8.2-3.el6_0.7, krb5-pkinit-openssl 1.8.2-3.el6_0.7 Red Hat Enterprise Linux Desktop Optional (v. 6) krb5 1.8.2-3.el6_0.7, krb5-server 1.8.2-3.el6_0.7, krb5-server-ldap 1.8.2-3.el6_0.7 Red Hat Enterprise Linux HPC Node (v. 6) krb5 1.8.2-3.el6_0.7, krb5-libs 1.8.2-3.el6_0.7 Red Hat Enterprise Linux HPC Node Optional (v. 6) krb5 1.8.2-3.el6_0.7, krb5-server 1.8.2-3.el6_0.7, krb5-server-ldap 1.8.2-3.el6_0.7, krb5-workstation 1.8.2-3.el6_0.7, krb5-pkinit-openssl 1.8.2-3.el6_0.7 Red Hat Enterprise Linux Server (v. 6) krb5 1.8.2-3.el6_0.7, krb5-libs 1.8.2-3.el6_0.7, krb5-server 1.8.2-3.el6_0.7, krb5-server-ldap 1.8.2-3.el6_0.7, krb5-workstation 1.8.2-3.el6_0.7, krb5-pkinit-openssl 1.8.2-3.el6_0.7 Red Hat Enterprise Linux Workstation (v. 6) krb5 1.8.2-3.el6_0.7, krb5-libs 1.8.2-3.el6_0.7, krb5-server 1.8.2-3.el6_0.7, krb5-server-ldap 1.8.2-3.el6_0.7, krb5-workstation 1.8.2-3.el6_0.7, krb5-pkinit-openssl 1.8.2-3.el6_0.7
    fixed: vendor fix RHSA-2011:0447
  • Red Hat Enterprise Linux 5 krb5
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Timeline

  1. First public exploit (EDB-35606)
  2. Published

Exploit prediction

20.77% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-35606 MIT Kerberos 5 - kadmind Change Password Feature Remote Code Execution remote, 2011-04-11

CVSS scores

assigned by version score vector
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.