CVE catalog
CVE-2012-4502
chrony: CVE-2012-4502
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 3.24% · Oct 25, 2026
Multiple integer overflows in pktlength.c in Chrony before 1.29 allow remote attackers to cause a denial of service (crash) via a crafted (1) REQ_SUBNETS_ACCESSED or (2) REQ_CLIENT_ACCESSES command request to the PKL_CommandLength function or crafted (3) RPY_SUBNETS_ACCESSED, (4) RPY_CLIENT_ACCESSES, (5) RPY_CLIENT_ACCESSES_BY_INDEX, or (6) RPY_MANUAL_LIST command reply to the PKL_ReplyLength function, which triggers an out-of-bounds read or buffer overflow. NOTE: versions 1.27 and 1.28 do not require authentication to exploit.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | chrony | sid | 4.9-2 | fixed |
| Debian | chrony | forky | 4.9-2 | fixed |
| Debian | chrony | trixie | 4.6.1-3+deb13u2 | fixed |
| Debian | chrony | bookworm | 4.3-2+deb12u3 | fixed |
| Opensuse | chrony | tumbleweed | 2.4.1-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | chrony | source | sid | 1.29-1 | not yet assigned | Not reported | [719203] |
| Debian | chrony | source | forky | 1.29-1 | not yet assigned | Not reported | [719203] |
| Debian | chrony | source | trixie | 1.29-1 | not yet assigned | Not reported | [719203] |
| Debian | chrony | source | bookworm | 1.29-1 | not yet assigned | Not reported | [719203] |
| Opensuse | chrony | rpm | tumbleweed | 2.4.1-1.1 | Not reported | OPENSUSE-SU-2024:10345-1 | Not reported |
OpenFactory catalog packages
[openSUSE Tumbleweed]
- [chrony-pool-empty]Unknown
Source package: [chrony]
Details (1)
4.9-1.1· noarch · tumbleweedUnknown · Fixed:
2.4.1-1.1Version impact unknown
dsa · chrony · opensuse · tumbleweed
- [chrony-pool-openSUSE]Unknown
Source package: [chrony]
Details (1)
4.9-1.1· noarch · tumbleweedUnknown · Fixed:
2.4.1-1.1Version impact unknown
dsa · chrony · opensuse · tumbleweed
- [chrony-pool-suse]Unknown
Source package: [chrony]
Details (1)
4.9-1.1· noarch · tumbleweedUnknown · Fixed:
2.4.1-1.1Version impact unknown
dsa · chrony · opensuse · tumbleweed
- [chrony]Fixed
Source package: [chrony]
Details (1)
4.9-1.1· x86_64 · tumbleweedFixed · Fixed:
2.4.1-1.1dsa · chrony · opensuse · tumbleweed
[Debian 12 (Bookworm)]
- [chrony]Fixed
Details (2)
4.3-2+deb12u3· amd64 · bookwormFixed · Fixed:
1.29-1dsa · chrony · debian · bookworm; dsa · chrony · debian · 12
4.3-2+deb12u3· arm64 · bookwormFixed · Fixed:
1.29-1dsa · chrony · debian · bookworm; dsa · chrony · debian · 12
[Debian 13 (Trixie)]
- [chrony]Fixed
Details (2)
4.6.1-3+deb13u2· amd64 · trixieFixed · Fixed:
1.29-1dsa · chrony · debian · 13
4.6.1-3+deb13u2· arm64 · trixieFixed · Fixed:
1.29-1dsa · chrony · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_10345-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2012-4502]
- [https://osv.dev/vulnerability/DSA-2760-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2012-4502]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:10345-1]
- [https://security-tracker.debian.org/tracker/CVE-2012-4502]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]