{"id":"CVE-2011-1499","aliases":["DEBIAN-CVE-2011-1499","DSA-2222-1","EUVD-2011-1500","GHSA-gf7c-j3g3-g2r4"],"status":"published","title":"acl.c in Tinyproxy before 1.8.3, when an Allow configuration setting specifies a CIDR block,...","description":"acl.c in Tinyproxy before 1.8.3, when an Allow configuration setting specifies a CIDR block, permits TCP connections from all IP addresses, which makes it easier for remote attackers to hide the origin of web traffic by leveraging the open HTTP proxy server.","severity":{"version":"2.0","score":2.6,"vector":"AV:N/AC:H/Au:N/C:N/I:P/A:N","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01755,"percentile":0.78083,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-16"],"published":"2011-04-20T00:00:00Z","modified":"2026-10-23T17:47:50Z","fixes":[{"ecosystem":"Debian:12","package":"tinyproxy","fixed_in":["1.8.2-2"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"tinyproxy","fixed_in":["1.8.2-2"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"tinyproxy","fixed_in":["1.8.2-2"],"sources":["osv"]},{"ecosystem":"Debian:6.0","package":"tinyproxy","fixed_in":["1.8.2-1squeeze1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"tinyproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.2-2"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"tinyproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.2-2"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"tinyproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.2-2"}]}]},{"source":"osv","ecosystem":"Debian:6.0","package":"tinyproxy","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.8.2-1squeeze1"}]}],"versions":["1.8.2-1"]}],"products":[{"vendor":"banu","product":"tinyproxy"},{"vendor":"debian","product":"debian_linux"}],"references":[{"url":"http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=621493","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Patch","fix","report"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=694658","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Patch","fix","report"]},{"url":"http://secunia.com/advisories/44274","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","advisory"]},{"url":"http://openwall.com/lists/oss-security/2011/04/08/3","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","article"]},{"url":"https://banu.com/cgit/tinyproxy/diff/?id=e8426f6662dc467bd1d827100481b95d9a4a23e4","tags":["x_refsource_CONFIRM","x_transferred","Broken Link","web"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/67256","tags":["vdb-entry","x_refsource_XF","x_transferred","web"]},{"url":"https://banu.com/bugzilla/show_bug.cgi?id=90","tags":["x_refsource_CONFIRM","x_transferred","Broken Link","report"]},{"url":"http://www.debian.org/security/2011/dsa-2222","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory"]},{"url":"http://openwall.com/lists/oss-security/2011/04/07/9","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","article"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-1499"},{"url":"https://github.com/advisories/GHSA-gf7c-j3g3-g2r4"},{"url":"https://security-tracker.debian.org/tracker/CVE-2011-1499","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2011-1499","description":"acl.c in Tinyproxy before 1.8.3, when an Allow configuration setting specifies a CIDR block, permits TCP connections from all IP addresses, which makes it easier for remote attackers to hide the origin of web traffic by leveraging the open HTTP proxy server.","status":"published","published":"2011-04-29T22:00:00Z","modified":"2024-08-06T22:28:41.802Z","updated_at":"2026-11-02T14:35:38.321377Z"}],"euvd":[{"id":"EUVD-2011-1500","description":"acl.c in Tinyproxy before 1.8.3, when an Allow configuration setting specifies a CIDR block, permits TCP connections from all IP addresses, which makes it easier for remote attackers to hide the origin of web traffic by leveraging the open HTTP proxy server.","status":"published","published":"2011-04-29T22:00:00Z","modified":"2024-08-06T22:28:41Z","updated_at":"2026-11-03T01:55:56.243798Z"}],"ghsa":[{"id":"GHSA-gf7c-j3g3-g2r4","title":"acl.c in Tinyproxy before 1.8.3, when an Allow configuration setting specifies a CIDR block,...","description":"acl.c in Tinyproxy before 1.8.3, when an Allow configuration setting specifies a CIDR block, permits TCP connections from all IP addresses, which makes it easier for remote attackers to hide the origin of web traffic by leveraging the open HTTP proxy server.","status":"published","published":"2022-05-17T02:00:34Z","modified":"2023-02-03T05:06:54Z","updated_at":"2026-11-02T14:53:57.460736Z"}],"nvd":[{"id":"CVE-2011-1499","description":"acl.c in Tinyproxy before 1.8.3, when an Allow configuration setting specifies a CIDR block, permits TCP connections from all IP addresses, which makes it easier for remote attackers to hide the origin of web traffic by leveraging the open HTTP proxy server.","status":"published","published":"2011-04-29T22:55:00.937Z","modified":"2026-06-16T23:29:30.17Z","cvss":[{"version":"2.0","score":2.6,"vector":"AV:N/AC:H/Au:N/C:N/I:P/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-16"],"updated_at":"2026-11-02T14:02:07.221228Z"}],"osv":[{"id":"CVE-2011-1499","description":"acl.c in Tinyproxy before 1.8.3, when an Allow configuration setting specifies a CIDR block, permits TCP connections from all IP addresses, which makes it easier for remote attackers to hide the origin of web traffic by leveraging the open HTTP proxy server.","status":"published","published":"2011-04-29T22:55:00Z","modified":"2026-04-10T03:41:44.279167Z","updated_at":"2026-11-02T15:43:57.991581Z"},{"id":"DEBIAN-CVE-2011-1499","description":"acl.c in Tinyproxy before 1.8.3, when an Allow configuration setting specifies a CIDR block, permits TCP connections from all IP addresses, which makes it easier for remote attackers to hide the origin of web traffic by leveraging the open HTTP proxy server.","status":"published","published":"2011-04-29T22:55:00.937Z","modified":"2026-10-23T17:47:50.476922704Z","updated_at":"2026-11-02T15:45:24.612044Z"},{"id":"DSA-2222-1","title":"tinyproxy - incorrect ACL processing","status":"published","published":"2011-04-20T00:00:00Z","modified":"2026-03-09T01:19:58.178969Z","updated_at":"2026-11-02T15:46:15.108335Z"}]}}