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Info |
Last Modified |
| 7 months ago |
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Description |
tcpdump contains a flaw that may allow a remote denial of service. The issue is triggered when a crafted BGP packet is parsed, causing an infinite loop, and will result in loss of availability for the service.
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Classification |
Location:
Remote/Network Access Required
Attack Type:
Denial of Service,
Input Manipulation
Impact:
Loss of Availability
Exploit:
Exploit Available
Disclosure:
OSVDB Verified
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Technical |
The bgp_update_print function in tcpdump 3.8.3 and some versions of the 3.9 release train (3.9.2 and prior plus some CVS versions) enters an infinite loop when passed a -1 return value from the decode_prefix4 function. Tcpdump captures that include a BGP4 packet so crafted will cause a denial of service of the tcpdump program.
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Solution |
Upgrade to version 3.9.3 or higher from CVS, as it has been reported to fix this vulnerability. In addition, Simon Nielsen has released a patch for some older versions.
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Products |
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tcpdump
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3.8.3 |
3.9 |
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Credit |
- Frédéric Raynal - pappy
 security-labs.org - Security Labs
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BlogsProvided by Technorati
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None found at this time
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