CVE-2018-0490 — NULL Pointer Dereference in TOR

CWE-476 — NULL Pointer Dereference7 documents6 sources
Severity
7.5HIGHNVD
EPSS
1.0%
top 22.59%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Torproject TORDebian Linux
Timeline
PublishedMar 5
Latest updateMay 14

Description

An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3.2.x before 0.3.2.10. The directory-authority protocol-list subprotocol implementation allows remote attackers to cause a denial of service (NULL pointer dereference and directory-authority crash) via a misformatted relay descriptor that is mishandled during voting.

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶Debiantorproject/tor< 0.3.2.10-1+3
▶NVDtorproject/tor0.3.1.7 — 0.3.1.9+16
▶CVEListV5torproject/torTor

Also affects: Debian Linux 9.0

🔴Vulnerability Details

3
GHSA
GHSA-f8j8-3mmq-3xxf: An issue was discovered in Tor before 0↗2022-05-14
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OSV
CVE-2018-0490: An issue was discovered in Tor before 0↗2018-03-05
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CVEList
CVE-2018-0490: An issue was discovered in Tor before 0↗2018-03-05
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📋Vendor Advisories

1
Debian
CVE-2018-0490: tor - An issue was discovered in Tor before 0.2.9.15, 0.3.1.x before 0.3.1.10, and 0.3...↗2018
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💬Community

2
Bugzilla
CVE-2018-0490 CVE-2018-0491 tor: various flaws [epel-6]↗2018-03-08
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Bugzilla
CVE-2018-0490 tor: NULL pointer dereference via a misformatted relay descriptor↗2018-03-08
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CVE-2018-0490 — NULL Pointer Dereference in TOR | cvebase