Vulnerability · Published Mar 23, 2020 · Assigned by mitre
CVE-2020-10593
High 7.5
In plain English
A high-severity security flaw in the tor package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 84% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)2.3%top 16.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Tor before 0.3.5.10, 0.4.x before 0.4.1.9, and 0.4.2.x before 0.4.2.7 allows remote attackers to cause a Denial of Service (memory leak), aka TROVE-2020-004. This occurs in circpad_setup_machine_on_circ because a circuit-padding machine can be negotiated twice on the same circuit.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | tor | 0.4.2.7-r0 | ALPINE-CVE-2020-10593 |
| Alpine:v3.21 | tor | 0.4.2.7-r0 | ALPINE-CVE-2020-10593 |
| Alpine:v3.22 | tor | 0.4.2.7-r0 | ALPINE-CVE-2020-10593 |
| Alpine:v3.23 | tor | 0.4.2.7-r0 | ALPINE-CVE-2020-10593 |
| Alpine:v3.24 | tor | 0.4.2.7-r0 | ALPINE-CVE-2020-10593 |
| Debian:12 | tor | 0.4.2.7-1 | DEBIAN-CVE-2020-10593 |
| Debian:13 | tor | 0.4.2.7-1 | DEBIAN-CVE-2020-10593 |
| Debian:14 | tor | 0.4.2.7-1 | DEBIAN-CVE-2020-10593 |
Affected products (as reported)
References
- https://trac.torproject.org/projects/tor/ticket/33619 x_refsource_MISC
- GLSA-202003-50 vendor-advisory, x_refsource_GENTOO
- openSUSE-SU-2020:0406 vendor-advisory, x_refsource_SUSE
- openSUSE-SU-2020:0428 vendor-advisory, x_refsource_SUSE