var-201503-0179
Vulnerability from variot
Memory leak in the TCP input module in Cisco IOS 12.2, 12.4, 15.0, 15.2, 15.3, and 15.4 and IOS XE 3.3.xXO, 3.5.xE, 3.6.xE, 3.8.xS through 3.10.xS before 3.10.5S, and 3.11.xS and 3.12.xS before 3.12.3S allows remote attackers to cause a denial of service (memory consumption or device reload) by sending crafted TCP packets over (1) IPv4 or (2) IPv6, aka Bug ID CSCum94811. Cisco IOS is a popular Internet operating system. Cisco IOS and IOS XE Software are prone to a remote denial-of-service vulnerability. Successful exploits may allow attackers to cause a memory leak and reload of an affected device, denying service to legitimate users. This issue is being tracked by Cisco Bug ID CSCum94811. The vulnerability stems from the fact that the program does not properly handle the packet sequence used for the TCP three-way handshake. The following products and versions are affected: Cisco IOS Releases 12.2, 12.4, 15.0, 15.2, 15.3, 15.4 and IOS XE 3.3.xXO, 3.5.xE, 3.6.xE, 3.8.xS through 3.10 .xS version, 3.11.xS version, 3.12.xS version before 3.12.3S
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.