9.3

CVE-2012-1015: mit kerberos_5 Improper Input Validation

CVSS: 9.3v2.0HighModified
AliasesDEBIAN-CVE-2012-1015
Published 06-08-2012Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2012-1015 is a high (CVSS 9.3) Improper Input Validation vulnerability in mit kerberos_5. EPSS estimates a 4.81% chance of exploitation in the next 30 days, higher than 91.8% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.3/10
010
High · v2.0 (NVD)
EPSS score
4.81%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2
DSA-2518-1RHSA-2012:1131

Timeline

  1. 06-08-2012
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

The kdc_handle_protected_negotiation function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x, 1.9.x before 1.9.5, and 1.10.x before 1.10.3 attempts to calculate a checksum before verifying that the key type is appropriate for a checksum, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized pointer free, heap memory corruption, and daemon crash) via a crafted AS-REQ request.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

4.81%

Chance of exploitation in the next 30 days

Percentile

92%

Versus all other CVEs

30-day change

0.00 pp

From 4.81% on 20-09-2026

20-09-202620-10-2026
EPSS score
4.81%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • krb5< 1.10.1+dfsg-2
Mit1 product
  • kerberos_51.8 | 1.8.1 | 1.8.2 | 1.8.3 | 1.8.4 | 1.8.5 | 1.8.6 | 1.9.4 | 1.10 | 1.10.1 | 1.10.2

2 vendors · 2 products

References

6 links