CVE-2012-4502
Summary
| CVE | CVE-2012-4502 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2013-11-05 21:55:08 UTC |
| Updated | 2026-04-29 01:13:23 UTC |
| Description | 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. |
Risk And Classification
CVSS v2.0 Breakdown
Access Vector
NetworkAccess Complexity
LowAuthentication
NoneConfidentiality
NoneIntegrity
NoneAvailability
PartialAV:N/AC:L/Au:N/C:N/I:N/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Application | Tuxfamily | Chrony | 1.0 | All | All | All |
| Application | Tuxfamily | Chrony | 1.1 | All | All | All |
| Application | Tuxfamily | Chrony | 1.18 | All | All | All |
| Application | Tuxfamily | Chrony | 1.19 | All | All | All |
| Application | Tuxfamily | Chrony | 1.19.99.1 | All | All | All |
| Application | Tuxfamily | Chrony | 1.19.99.2 | All | All | All |
| Application | Tuxfamily | Chrony | 1.19.99.3 | All | All | All |
| Application | Tuxfamily | Chrony | 1.20 | All | All | All |
| Application | Tuxfamily | Chrony | 1.21 | All | All | All |
| Application | Tuxfamily | Chrony | 1.21 | pre1 | All | All |
| Application | Tuxfamily | Chrony | 1.23 | All | All | All |
| Application | Tuxfamily | Chrony | 1.23 | pre1 | All | All |
| Application | Tuxfamily | Chrony | 1.23.1 | All | All | All |
| Application | Tuxfamily | Chrony | 1.24 | All | All | All |
| Application | Tuxfamily | Chrony | 1.24 | pre1 | All | All |
| Application | Tuxfamily | Chrony | 1.25 | All | All | All |
| Application | Tuxfamily | Chrony | 1.25 | pre1 | All | All |
| Application | Tuxfamily | Chrony | 1.25 | pre2 | All | All |
| Application | Tuxfamily | Chrony | 1.26 | All | All | All |
| Application | Tuxfamily | Chrony | 1.26 | pre1 | All | All |
| Application | Tuxfamily | Chrony | 1.27 | All | All | All |
| Application | Tuxfamily | Chrony | 1.27 | pre1 | All | All |
| Application | Tuxfamily | Chrony | 1.28 | pre1 | All | All |
| Application | Tuxfamily | Chrony | All | All | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| permalink.gmane.org | 522: Connection timed out | af854a3a-2127-422b-91ae-364da2661108 | permalink.gmane.org | Patch, Vendor Advisory |
| cgit error | af854a3a-2127-422b-91ae-364da2661108 | git.tuxfamily.org | |
| oss-sec: [Not a CVE request, just notification] CVE-2012-4502, CVE-2012-4503 -- Two security flaws fixed in Chrony v1.29 | af854a3a-2127-422b-91ae-364da2661108 | seclists.org | Patch |
| Debian -- Security Information -- DSA-2760-1 chrony | af854a3a-2127-422b-91ae-364da2661108 | www.debian.org | |
| Bug 846392 – CVE-2012-4502 CVE-2012-4503 chrony: Two security flaws fixed in chrony-1.29 release | af854a3a-2127-422b-91ae-364da2661108 | bugzilla.redhat.com | Patch |
| cgit error | MITRE | git.tuxfamily.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.