4.3

CVE-2011-4897: tor

Modified
AliasesDEBIAN-CVE-2011-4897
Published 23-12-2011Last modified 16-09-2024

Vulnerability summary

CVE-2011-4897 is a medium (CVSS 4.3) vulnerability in tor. EPSS estimates a 1.53% chance of exploitation in the next 30 days, higher than 74.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.3/10
010
Medium · v2.0 (NVD)
EPSS score
1.53%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2024:10423-1

Timeline

  1. 23-12-2011
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

Tor before 0.2.2.25-alpha, when configured as a relay without the Nickname configuration option, uses the local hostname as the Nickname value, which allows remote attackers to obtain potentially sensitive information by reading this value.

CVSS metrics

1 score · 1 source · 1 version

EPSS trend

Probability

1.53%

Chance of exploitation in the next 30 days

Percentile

75%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.53% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.

Debian1 product
  • tor< 0.2.2.27-beta-1
Tor1 product
  • tor≤ 0.2.2.24 | 0.0.2 | 0.0.3 | 0.0.4 | 0.0.5 | 0.0.6 | 0.0.6.1 | 0.0.6.2 | 0.0.7 | 0.0.7.1 | 0.0.7.2 | 0.0.7.3 | 0.0.8 | 0.0.8.1 | 0.0.9 | 0.0.9.1 | 0.0.9.2 | 0.0.9.3 | 0.0.9.4 | 0.0.9.5 | 0.0.9.6 | 0.0.9.7 | 0.0.9.8 | 0.0.9.9 | 0.0.9.10 | 0.1.0.1 | 0.1.0.2 | 0.1.0.3 | 0.1.0.4 | 0.1.0.5 | 0.1.0.6 | 0.1.0.7 | 0.1.0.8 | 0.1.0.9 | 0.1.0.10 | 0.1.0.11 | 0.1.0.12 | 0.1.0.13 | 0.1.0.14 | 0.1.0.15 | 0.1.0.16 | 0.1.0.17 | 0.1.0.18 | 0.1.0.19 | 0.1.1 | 0.1.1.1 | 0.1.1.1:alpha | 0.1.1.2 | 0.1.1.2:alpha | 0.1.1.3 | 0.1.1.3:alpha | 0.1.1.4 | 0.1.1.4:alpha | 0.1.1.5 | 0.1.1.5:alpha | 0.1.1.6 | 0.1.1.6:alpha | 0.1.1.7 | 0.1.1.7:alpha | 0.1.1.8 | 0.1.1.8:alpha | 0.1.1.9 | 0.1.1.9:alpha | 0.1.1.10 | 0.1.1.10:alpha | 0.1.1.11 | 0.1.1.12 | 0.1.1.13 | 0.1.1.14 | 0.1.1.15 | 0.1.1.16 | 0.1.1.17 | 0.1.1.18 | 0.1.1.19 | 0.1.1.20 | 0.1.1.21 | 0.1.1.22 | 0.1.1.23 | 0.1.1.25 | 0.1.1.26 | 0.1.2.1:alpha | 0.1.2.1:alpha-cvs | 0.1.2.2 | 0.1.2.3:alpha | 0.1.2.4 | 0.1.2.5 | 0.1.2.5:alpha | 0.1.2.6:alpha | 0.1.2.7:alpha | 0.1.2.8:beta | 0.1.2.9 | 0.1.2.10 | 0.1.2.11 | 0.1.2.12 | 0.1.2.13 | 0.1.2.14 | 0.1.2.15 | 0.1.2.16 | 0.1.2.17 | 0.1.2.18 | 0.1.2.19 | 0.1.2.30 | 0.1.2.31 | 0.2.0.1:alpha | 0.2.0.2:alpha | 0.2.0.3:alpha | 0.2.0.4:alpha | 0.2.0.5:alpha | 0.2.0.6:alpha | 0.2.0.7:alpha | 0.2.0.8:alpha | 0.2.0.9:alpha | 0.2.0.10:alpha | 0.2.0.11:alpha | 0.2.0.12:alpha | 0.2.0.13:alpha | 0.2.0.14:alpha | 0.2.0.15:alpha | 0.2.0.16:alpha | 0.2.0.17:alpha | 0.2.0.18:alpha | 0.2.0.19:alpha | 0.2.0.20:alpha | 0.2.0.21:alpha | 0.2.0.22:alpha | 0.2.0.23:alpha | 0.2.0.24:alpha | 0.2.0.25:alpha | 0.2.0.26:alpha | 0.2.0.27:alpha | 0.2.0.28:alpha | 0.2.0.29 | 0.2.0.29:alpha | 0.2.0.30 | 0.2.0.30:alpha | 0.2.0.31 | 0.2.0.31:alpha | 0.2.0.32:alpha | 0.2.0.33 | 0.2.0.34:alpha | 0.2.0.35 | 0.2.1.1:alpha | 0.2.1.11:alpha | 0.2.1.12:alpha | 0.2.1.1.3:alpha | 0.2.1.1.4:alpha | 0.2.1.1.5:alpha | 0.2.1.1.6:alpha | 0.2.1.1.7:alpha | 0.2.1.1.8:alpha | 0.2.1.1.9:alpha | 0.2.1.1.10:alpha | 0.2.1.1.11:alpha | 0.2.1.1.12 | 0.2.1.1.12:alpha | 0.2.1.1.13 | 0.2.1.1.14 | 0.2.1.1.15 | 0.2.1.1.16 | 0.2.1.1.17 | 0.2.1.1.18 | 0.2.1.1.19 | 0.2.1.1.20 | 0.2.1.1.21 | 0.2.1.1.22 | 0.2.1.1.23 | 0.2.1.1.24 | 0.2.1.1.25 | 0.2.1.1.26 | 0.2.1.1.27 | 0.2.1.1.28 | 0.2.1.2:alpha | 0.2.1.3:alpha | 0.2.1.4:alpha | 0.2.1.5:alpha | 0.2.1.6:alpha | 0.2.1.7:alpha | 0.2.1.8:alpha | 0.2.1.9:alpha | 0.2.1.10:alpha | 0.2.1.12 | 0.2.1.13 | 0.2.1.14 | 0.2.1.15 | 0.2.1.16 | 0.2.1.17 | 0.2.1.18 | 0.2.1.19 | 0.2.1.20 | 0.2.1.21 | 0.2.1.22 | 0.2.1.23 | 0.2.1.24 | 0.2.1.25 | 0.2.1.26 | 0.2.1.27 | 0.2.1.28 | 0.2.1.29 | 0.2.2.1 | 0.2.2.1:alpha | 0.2.2.2 | 0.2.2.2:alpha | 0.2.2.3 | 0.2.2.3:alpha | 0.2.2.4 | 0.2.2.4:alpha | 0.2.2.5 | 0.2.2.5:alpha | 0.2.2.6 | 0.2.2.6:alpha | 0.2.2.7:alpha | 0.2.2.8:alpha | 0.2.2.9:alpha | 0.2.2.10:alpha | 0.2.2.11:alpha | 0.2.2.12:alpha | 0.2.2.13:alpha | 0.2.2.14:alpha | 0.2.2.15:alpha | 0.2.2.16:alpha | 0.2.2.17:alpha | 0.2.2.18:alpha | 0.2.2.19:alpha | 0.2.2.20:alpha | 0.2.2.23:alpha

2 vendors · 2 products

References

2 links