Vulnerability Details : CVE-2015-6432
Cisco IOS XR 4.2.0, 4.3.0, 5.0.0, 5.1.0, 5.2.0, 5.2.2, 5.2.4, 5.3.0, and 5.3.2 does not properly restrict the number of Path Computation Elements (PCEs) for OSPF LSA opaque area updates, which allows remote attackers to cause a denial of service (device reload) via a crafted update, aka Bug ID CSCuw83486.
Vulnerability category: Denial of service
Products affected by CVE-2015-6432
- cpe:2.3:o:cisco:ios_xr:4.2.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:5.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:4.3.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:5.2.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:5.2.2:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:5.3.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:5.0.0:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:5.3.2:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:ios_xr:5.2.4:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2015-6432
1.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 77 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2015-6432
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2015-6432
-
Assigned by: nvd@nist.gov (Primary)
References for CVE-2015-6432
-
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160104-iosxr
Cisco IOS XR Software OSPF Link State Advertisement PCE VulnerabilityVendor Advisory
-
http://www.securitytracker.com/id/1034570
Cisco IOS XR OSPF LSA Update Processing Flaw Lets Remote Users Cause the Target Service to Crash - SecurityTracker
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