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CVE-2018-0491

nvd nist
Published: Mar 5, 2018Modified: Nov 21, 2024

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7.5
Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploitability: 3.9 / Impact: 3.6
Source: NVD

Description

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.

Affected (1)

Products: Torproject: Tor
Torproject
1 product
Tor
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Tor
From 0.3.2.0 to 0.3.2.10

Related CWEs

CWE-416
Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (8)

Source: security@debian.org
Vendor Advisory
Source: security@debian.org
Issue TrackingMitigationVendor Advisory
Source: security@debian.org
Issue TrackingPatchVendor Advisory
Source: security@debian.org
ExploitThird Party AdvisoryVDB Entry
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingMitigationVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party AdvisoryVDB Entry

Timeline

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