krb5: multiple checksum handling vulnerabilities (MITKRB5-SA-2010-007)
Published Dec 2, 2010
3.7
LOWCVSS 3.0
EPSS 2.25%
Description
MIT Kerberos 5 (aka krb5) 1.7.x and 1.8.x through 1.8.3 does not properly determine the acceptability of checksums, which might allow remote attackers to forge GSS tokens, gain privileges, or have unspecified other impact via (1) an unkeyed checksum, (2) an unkeyed PAC checksum, or (3) a KrbFastArmoredReq checksum based on an RC4 key.
Affected products
No data.
- 1.7
- 1.7.1
- 1.8
- 1.8.1
- 1.8.2
- 1.8.3
No data.
Red Hat Enterprise Linux 6
krb5-0:1.8.2-3.el6_0.3
Fixed · RHSA-2010:0925
Red Hat Enterprise Linux 5
krb5
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | krb5-0:1.8.2-3.el6_0.3 | Fixed | RHSA-2010:0925 |
| Red Hat Enterprise Linux 5 | krb5 | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the versions of krb5 as shipped with Red Hat Enterprise Linux 3, 4 and 5.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.25% (0.02253) | 82.30th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.25% (0.02253) | 80.58th | v5 (v2026.06.15) |
| Mar 30, 2025 | 3.50% (0.03499) | 86.48th | v4 (v2025.03.14) |
| Mar 29, 2025 | 6.02% (0.06017) | 84.09th | v4 (v2025.03.14) |
| Mar 17, 2025 | 3.50% (0.03499) | 86.81th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.69% (0.00694) | 80.87th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.69% (0.00694) | 79.56th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.69% (0.00694) | 77.09th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.36% (0.04358) | 88.02th | v2 (v2022.01.01) |
| Apr 1, 2022 | 4.36% (0.04358) | 86.83th | v2 (v2022.01.01) |
| Feb 4, 2022 | 4.36% (0.04358) | 70.59th | v2 (v2022.01.01) |
References (31)
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- http://www.vupen.com/english/advisories/2010/3095 vdb-entryx_refsource_VUPEN
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- https://access.redhat.com/security/cve/CVE-2010-1324 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=648674 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2010-1324
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11936 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2010-1324
Change history (0)
No recorded changes yet.