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Vulnerability record · CVE-2010-1676 · published 22 December 2010

CVE-2010-1676: Tor memory buffer overflow vulnerability

Tor · Tor

Heap-based buffer overflow in Tor before 0.2.1.28 and 0.2.2.x before 0.2.2.20-alpha allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via unspecified vectors.

10.0 CVSS 2.0 High EPSS 7.9% · top 5.5% CWE-119 · Memory buffer overflow
10.0CVSS 2.0 base score
7.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
32References
16 Jun 2026Last modified by NVD

Description

Heap-based buffer overflow in Tor before 0.2.1.28 and 0.2.2.x before 0.2.2.20-alpha allows remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code via unspecified vectors.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.seul.org/or/announce/Dec-2010/msg00000.html Patch
http://blog.torproject.org/blog/tor-02128-released-security-patches Patch
http://blog.torproject.org/blog/tor-02220-alpha-out-security-patches Patch
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052657.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052690.html
http://secunia.com/advisories/42536 Vendor Advisory
http://secunia.com/advisories/42667
http://secunia.com/advisories/42783
http://secunia.com/advisories/42916
http://security.gentoo.org/glsa/glsa-201101-02.xml
http://securitytracker.com/id?1024910
http://www.debian.org/security/2010/dsa-2136
http://www.securityfocus.com/bid/45500
http://www.vupen.com/english/advisories/2010/3290 Vendor Advisory
http://www.vupen.com/english/advisories/2011/0114
https://gitweb.torproject.org/tor.git/blob/release-0.2.1:/ChangeLog
http://archives.seul.org/or/announce/Dec-2010/msg00000.html Patch
http://blog.torproject.org/blog/tor-02128-released-security-patches Patch
http://blog.torproject.org/blog/tor-02220-alpha-out-security-patches Patch
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052657.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052690.html
http://secunia.com/advisories/42536 Vendor Advisory
http://secunia.com/advisories/42667
http://secunia.com/advisories/42783
http://secunia.com/advisories/42916
http://security.gentoo.org/glsa/glsa-201101-02.xml
http://securitytracker.com/id?1024910
http://www.debian.org/security/2010/dsa-2136
http://www.securityfocus.com/bid/45500
http://www.vupen.com/english/advisories/2010/3290 Vendor Advisory
http://www.vupen.com/english/advisories/2011/0114
https://gitweb.torproject.org/tor.git/blob/release-0.2.1:/ChangeLog

Track CVE-2010-1676 inside VULONE

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2009-0939Tor vulnerabilityTor before 0.2.0.34 treats incomplete IPv4 addresses as valid, which has unknown impact and attack vectors related to "Spec conformance," as demonstr…EPSS 2.1%10.0CVE-2009-0414Tor vulnerabilityUnspecified vulnerability in Tor before 0.2.0.33 has unspecified impact and remote attack vectors that trigger heap corruption.EPSS 3.0%9.3CVE-2008-5398Tor permissions and access controls vulnerabilityTor before 0.2.0.32 does not properly process the ClientDNSRejectInternalAddresses configuration option in situations where an exit relay issues a po…EPSS 2.0%7.6CVE-2011-2778Tor memory buffer overflow vulnerabilityMultiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attackers to cause a denial of service (memory corruption) or possibly execu…EPSS 3.8%7.5CVE-2006-3409Tor vulnerabilityInteger overflow in Tor before 0.1.1.20 allows remote attackers to execute arbitrary code via crafted large inputs, which result in a buffer overflow…EPSS 3.7%7.2CVE-2008-5397Tor permissions and access controls vulnerabilityTor before 0.2.0.32 does not properly process the (1) User and (2) Group configuration options, which might allow local users to gain privileges by l…EPSS 0.36%6.8CVE-2011-0427Tor memory buffer overflow vulnerabilityHeap-based buffer overflow in Tor before 0.2.1.29 and 0.2.2.x before 0.2.2.21-alpha allows remote attackers to cause a denial of service (memory corr…EPSS 4.4%6.4CVE-2007-4097Tor vulnerabilityTor before 0.1.2.15 sends "destroy cells" containing the reason for tearing down a circuit, which allows remote attackers to obtain sensitive informa…EPSS 2.2%

Source: NIST National Vulnerability Database (record CVE-2010-1676), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.