The rend_service_intro_established function in or/rendservice.c in Tor before 0.2.8.15, 0.2.9.x before 0.2.9.12, 0.3.0.x before 0.3.0.11,…

Description

The rend_service_intro_established function in or/rendservice.c in Tor before 0.2.8.15, 0.2.9.x before 0.2.9.12, 0.3.0.x before 0.3.0.11, 0.3.1.x before 0.3.1.7, and 0.3.2.x before 0.3.2.1-alpha, when SafeLogging is disabled, allows attackers to obtain sensitive information by leveraging access to the log files of a hidden service, because uninitialized stack data is included in an error message about construction of an introduction point circuit.

Scores

EPSS (exploitation in 30 days)

1.5% · top 25% of all CVEs (3 Nov 2026)

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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.9.

Weakness

• use of uninitialized stack data
• CWE-532 (opens in a new tab)Other CVEs with CWE-532

Affected products

• Tor before 0.3.1.7

  • affected Tor before 0.3.1.7

References (4)

• https://trac.torproject.org/projects/tor/ticket/23490 (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://github.com/torproject/tor/commit/09ea89764a4d3a907808ed7d4fe42abfe64bd486 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 1039519 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
• DSA-3993 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2017-0380](https://trackcve.app/badge/CVE-2017-0380.svg)](https://trackcve.app/cve/CVE-2017-0380)

Record last updated 5 Aug 2024, 13:03 UTC.