CVE-2018-0491 EXPLOIT
7.5
HIGH · CVSS 3.0 · EPSS 14.8% (pctl 97)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.5 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| EPSS | 14.79% — more likely to be exploited than 97% of all CVEs |
| Weakness | CWE-416 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2018-03-05 |
| Last modified | 2026-06-17 |
Affected (1)
| Vendor | Product |
|---|---|
| torproject | tor |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Tor Browser < 0.3.2.10 - Use After Free (PoC) | 2018-07-09 |
References
- https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915
- https://trac.torproject.org/projects/tor/ticket/24700
- https://trac.torproject.org/projects/tor/ticket/25117
- https://www.exploit-db.com/exploits/44994/
- https://blog.torproject.org/new-stable-tor-releases-security-fixes-and-dos-prevention-03210-03110-02915
- https://trac.torproject.org/projects/tor/ticket/24700
- https://trac.torproject.org/projects/tor/ticket/25117
- https://www.exploit-db.com/exploits/44994/
→ the Explorer · watch your stack · NVD