FKIE_CVE-2012-4502

Vulnerability from fkie_nvd - Published: 2013-11-05 21:55 - Updated: 2025-04-11 00:51
Severity ?
Summary
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.
References
secalert@redhat.comhttp://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=7712455d9aa33d0db0945effaa07e900b85987b1
secalert@redhat.comhttp://permalink.gmane.org/gmane.comp.time.chrony.announce/15Patch, Vendor Advisory
secalert@redhat.comhttp://seclists.org/oss-sec/2013/q3/332Patch
secalert@redhat.comhttp://www.debian.org/security/2013/dsa-2760
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=846392Patch
af854a3a-2127-422b-91ae-364da2661108http://git.tuxfamily.org/chrony/chrony.git/?p=chrony/chrony.git%3Ba=commitdiff%3Bh=7712455d9aa33d0db0945effaa07e900b85987b1
af854a3a-2127-422b-91ae-364da2661108http://permalink.gmane.org/gmane.comp.time.chrony.announce/15Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://seclists.org/oss-sec/2013/q3/332Patch
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2013/dsa-2760
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=846392Patch
Impacted products
Vendor Product Version
tuxfamily chrony *
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 1.21
tuxfamily chrony 1.23
tuxfamily chrony 1.23
tuxfamily chrony 1.23.1
tuxfamily chrony 1.24
tuxfamily chrony 1.24
tuxfamily chrony 1.25
tuxfamily chrony 1.25
tuxfamily chrony 1.25
tuxfamily chrony 1.26
tuxfamily chrony 1.26
tuxfamily chrony 1.27
tuxfamily chrony 1.27
tuxfamily chrony 1.28
To clipboard 

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  "cveTags": [],
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      "value": "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."
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  "id": "CVE-2012-4502",
  "lastModified": "2025-04-11T00:51:21.963",
  "metrics": {
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
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          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
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        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
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        "obtainUserPrivilege": false,
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Sightings

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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