Vulnerability Monitor

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CVE-2018-0491

A use-after-free issue was discovered in Tor 0.3.2.x before 0.3.2.10. It allows remote attackers to cause a denial of service (relay crash) because the KIST implementation allows a channel to be added more than once in the pending list.

Published

2018-03-05T15:29:00.270

Last Modified

2024-11-21T03:38:20.637

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-416

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	torproject	tor	< 0.3.2.10	Yes

References

https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915 Vendor Advisory ([email protected])
https://trac.torproject.org/projects/tor/ticket/24700 Issue Tracking, Mitigation, Vendor Advisory ([email protected])
https://trac.torproject.org/projects/tor/ticket/25117 Issue Tracking, Patch, Vendor Advisory ([email protected])
https://www.exploit-db.com/exploits/44994/ Exploit, Third Party Advisory, VDB Entry ([email protected])
https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://trac.torproject.org/projects/tor/ticket/24700 Issue Tracking, Mitigation, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://trac.torproject.org/projects/tor/ticket/25117 Issue Tracking, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.exploit-db.com/exploits/44994/ Exploit, Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)