CVE-2012-4503 json
cmdmon.c in Chrony before 1.29 allows remote attackers to obtain potentially sensitive information from stack memory via vectors related to…
published 2013-11-05 13 y ago modified 2026-06-16 4 mo ago also EUVD-2012-4432
- cvss
- 5.0
- version 2.0, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 3.1%
- EPSS 3.1% chance of exploitation in 30 days, percentile 87%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- chrony Debian 14, Debian 13, Debian 12 1.29-1
debian advisories DEBIAN-CVE-2012-4503
- chrony openSUSE Tumbleweed 2.4.1-1.1
opensuse advisories openSUSE-SU-2024:10345-1
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-2012-4503 updated cvss 5.0
chrony: Two security flaws fixed in chrony-1.29 release
-
Red Hat Enterprise Linux 7 chronynot 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
Exploit prediction
3.08% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Classification
- Weakness
-
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
References
-
seclists.org
/oss-sec/2013/q3/332
mailing-list, patch
-
debian.org
/security/2013/dsa-2760
vendor-advisory
-
permalink.gmane.org
/gmane.comp.time.chrony.announce/15
mailing-list, vendor-advisory
- git.tuxfamily.org /chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=c6fdeeb6bb0b17dc28c19ae492c4a1c498e54ea3
- bugzilla.redhat.com /show_bug.cgi?id=846392
Sources
- CVE List CVE-2012-4503
- NVD CVE-2012-4503
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.