CVE-2012-4503

medium

Published 2013-11-05 · Modified 2026-04-29

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

5.0

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.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`1.29-1`
debian	bullseye	fixed	`1.29-1`
debian	forky	fixed	`1.29-1`
debian	sid	fixed	`1.29-1`
debian	trixie	fixed	`1.29-1`

Application impact

Vendor	Product	Versions
tuxfamily	chrony	`{"endIncluding":"1.28"}`
tuxfamily	chrony	`1.0`
tuxfamily	chrony	`1.1`
tuxfamily	chrony	`1.18`
tuxfamily	chrony	`1.19`
tuxfamily	chrony	`1.19.99.1`
tuxfamily	chrony	`1.19.99.2`
tuxfamily	chrony	`1.19.99.3`
tuxfamily	chrony	`1.20`
tuxfamily	chrony	`1.21`
tuxfamily	chrony	`1.23`
tuxfamily	chrony	`1.23.1`
tuxfamily	chrony	`1.24`
tuxfamily	chrony	`1.25`
tuxfamily	chrony	`1.26`
tuxfamily	chrony	`1.27`
tuxfamily	chrony	`1.28`

References

CWEs

CWE-200

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.