3.5

CVE-2013-1417: mit kerberos_5 Improper Input Validation

Modified
AliasesUBUNTU-CVE-2013-1417DEBIAN-CVE-2013-1417
Published 20-11-2013Last modified 06-08-2024

Vulnerability summary

CVE-2013-1417 is a low (CVSS 3.5) Improper Input Validation vulnerability in mit kerberos_5. EPSS estimates a 1.93% chance of exploitation in the next 30 days, higher than 80% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Routine

Not severe (CVSS 3.5, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
3.5/10
010
Low · v2.0 (NVD)
EPSS score
1.93%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 2 · Related 1
MGASA-2013-0336OPENSUSE-SU-2024:10004-1

Timeline

  1. 20-11-2013
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.11 before 1.11.4, when a single-component realm name is used, allows remote authenticated users to cause a denial of service (daemon crash) via a TGS-REQ request that triggers an attempted cross-realm referral for a host-based service principal.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

1.93%

Chance of exploitation in the next 30 days

Percentile

80%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.93% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Krb5

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, authentication (CVSS vector). Other conditions: not stated in public data.

Debian1 product
  • krb5< 1.11.3+dfsg-3+nmu1
Mit1 product
Ubuntu1 product
  • krb5< 1.12+dfsg-2ubuntu4

3 vendors · 3 products

References

7 links