1. CVE-Search
  2. CVE-2012-4502
ID CVE-2012-4502
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
Vulnerable Configurations
  • cpe:2.3:a:tuxfamily:chrony:1.0:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.0:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.1:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.1:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.18:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.18:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.19:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.19:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.19.99.1:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.19.99.1:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.19.99.2:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.19.99.2:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.19.99.3:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.19.99.3:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.20:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.20:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.21:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.21:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.21:pre1:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.21:pre1:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.23:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.23:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.23:pre1:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.23:pre1:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.23.1:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.23.1:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.24:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.24:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.24:pre1:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.24:pre1:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.25:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.25:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.25:pre1:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.25:pre1:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.25:pre2:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.25:pre2:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.26:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.26:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.26:pre1:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.26:pre1:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.27:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.27:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.27:pre1:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.27:pre1:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.28:*:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.28:*:*:*:*:*:*:*
  • cpe:2.3:a:tuxfamily:chrony:1.28:pre1:*:*:*:*:*:*
    cpe:2.3:a:tuxfamily:chrony:1.28:pre1:*:*:*:*:*:*
CVSS
Base: 5.0 (as of 06-11-2013 - 19:25)
Impact:
Exploitability:
CWE CWE-189
CAPEC
Access
VectorComplexityAuthentication
NETWORK LOW NONE
Impact
ConfidentialityIntegrityAvailability
NONE NONE PARTIAL
cvss-vector via4 AV:N/AC:L/Au:N/C:N/I:N/A:P
refmap via4
confirm
debian DSA-2760
mlist
  • [chrony-announce] 20130808 chrony-1.29 released (security)
  • [oss-security] 20130809 [Not a CVE request, just notification] CVE-2012-4502, CVE-2012-4503 -- Two security flaws fixed in Chrony v1.29
Last major update 06-11-2013 - 19:25
Published 05-11-2013 - 21:55
Last modified 06-11-2013 - 19:25
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