chrony: Two security flaws fixed in chrony-1.29 release
Published Nov 5, 2013
5.0
MEDIUMCVSS 2.0
EPSS 3.08%
Description
cmdmon.c in Chrony before 1.29 allows remote attackers to obtain potentially sensitive information from stack memory via vectors related to (1) an invalid subnet in a RPY_SUBNETS_ACCESSED command to the handle_subnets_accessed function or (2) a RPY_CLIENT_ACCESSES command to the handle_client_accesses function when client logging is disabled, which causes uninitialized data to be included in a reply.
Affected products
No data.
- ≤ 1.28
- 1.0
- 1.1
- 1.18
- 1.19
- 1.19.99.1
- 1.19.99.2
- 1.19.99.3
- 1.20
- 1.21
- 1.21
- 1.23
- 1.23
- 1.23.1
- 1.24
- 1.24
- 1.25
- 1.25
- 1.25
- 1.26
- 1.26
- 1.27
- 1.27
- 1.28
No data.
Red Hat Enterprise Linux 7
chrony
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | chrony | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:N/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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 3.08% (0.03082) | 87.23th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.08% (0.03082) | 85.94th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.40% (0.00403) | 58.77th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.47% (0.00470) | 76.41th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.28% (0.00281) | 68.07th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.27% (0.00268) | 66.96th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.23% (0.00227) | 60.01th | v3 (v2023.03.01) |
| Nov 8, 2023 | 0.47% (0.00470) | 72.82th | v3 (v2023.03.01) |
| Nov 4, 2023 | 0.59% (0.00593) | 76.02th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.66% (0.00660) | 76.43th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (8)
- http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=c6fdeeb6bb0b17dc28c19ae492c4a1c498e54ea3 x_refsource_CONFIRM
- http://permalink.gmane.org/gmane.comp.time.chrony.announce/15 mailing-listx_refsource_MLISTVendor Advisory
- http://seclists.org/oss-sec/2013/q3/332 mailing-listx_refsource_MLISTPatch
- http://www.debian.org/security/2013/dsa-2760 vendor-advisoryx_refsource_DEBIAN
- https://access.redhat.com/security/cve/CVE-2012-4503 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=846392 x_refsource_CONFIRMIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2012-4503
- https://www.cve.org/CVERecord?id=CVE-2012-4503
| Link | Providers | Tags |
|---|---|---|
| http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=c6fdeeb6bb0b17dc28c19ae492c4a1c498e54ea3 | x_refsource_CONFIRM | |
| http://permalink.gmane.org/gmane.comp.time.chrony.announce/15 | mailing-listx_refsource_MLISTVendor Advisory | |
| http://seclists.org/oss-sec/2013/q3/332 | mailing-listx_refsource_MLISTPatch | |
| http://www.debian.org/security/2013/dsa-2760 | vendor-advisoryx_refsource_DEBIAN | |
| https://access.redhat.com/security/cve/CVE-2012-4503 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=846392 | x_refsource_CONFIRMIssue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2012-4503 | ||
| https://www.cve.org/CVERecord?id=CVE-2012-4503 |
Change history (0)
No recorded changes yet.