Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of…

Description

Buffer overflow in the policy_summarize function in or/policies.c in Tor before 0.2.1.30 allows remote attackers to cause a denial of service (directory authority crash) via a crafted policy that triggers creation of a long port list.

Scores

EPSS (exploitation in 30 days)

2.8% · top 13% of all CVEs (3 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.

Weakness

• n/a
• CWE-119 (opens in a new tab)All about CWE-119 and its CVEs

Affected products

• n/a

  • affected n/a

References (8)

• 43548 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=705194 (opens in a new tab)x_refsource_CONFIRMx_transferred
• 44862 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
• 46618 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
• https://gitweb.torproject.org/tor.git/commit/43414eb98821d3b5c6c65181d7545ce938f82c8e (opens in a new tab)x_refsource_CONFIRMx_transferred
• FEDORA-2011-7972 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
• https://bugzilla.redhat.com/show_bug.cgi?id=705192 (opens in a new tab)x_refsource_CONFIRMx_transferred
• [tor-announce] 20110228 Tor 0.2.1.30 is released (opens in a new tab)mailing-listx_refsource_MLISTx_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-2011-1924](https://trackcve.app/badge/CVE-2011-1924.svg)](https://trackcve.app/cve/CVE-2011-1924)

Record last updated 6 Aug 2024, 22:46 UTC.