ID ALAS-2017-794 Type amazon Reporter Amazon Modified 2017-02-06T18:00:00
Description
Issue Overview:
It was discovered that Subversion's mod_dontdothat module and Subversion clients using http(s):// are vulnerable to a denial-of-service attack caused by exponential XML entity expansion. An authenticated remote attacker can cause denial-of-service conditions on the server using mod_dontdothat by sending a specially crafted REPORT request. The attack does not require access to a particular repository.
Affected Packages:
subversion, mod_dav_svn
Issue Correction:
Run yum update subversion to update your system.
Run yum update mod_dav_svn to update your system.
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This allowed an\n attacker to run an arbitrary shell command, for instance via\n svn:externals properties or when using 'svnsync sync'.\n\nFor the oldstable distribution (jessie), these problems have been fixed\nin version 1.8.10-6+deb8u5.\n\nFor the stable distribution (stretch), these problems have been fixed in\nversion 1.9.5-1+deb9u1.\n\nWe recommend that you upgrade your subversion packages.\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org\n", "edition": 8, "modified": "2017-08-10T18:50:09", "published": "2017-08-10T18:50:09", "id": "DEBIAN:DSA-3932-1:A3186", "href": "https://lists.debian.org/debian-security-announce/debian-security-announce-2017/msg00194.html", "title": "[SECURITY] [DSA 3932-1] subversion security update", "type": "debian", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "suse": [{"lastseen": "2017-08-14T21:07:34", "bulletinFamily": "unix", "cvelist": ["CVE-2016-8734", "CVE-2017-9800"], "description": "This update for subversion fixes the following issue:\n\n - CVE-2016-8734: Unrestricted XML entity expansion in mod_dontdothat and\n Subversion clients using http(s):// (bsc#1011552).\n\n - CVE-2017-9800: client code execution via argument injection in SSH URL\n (bnc#1051362)\n\n", "edition": 1, "modified": "2017-08-14T18:08:39", "published": "2017-08-14T18:08:39", "href": "http://lists.opensuse.org/opensuse-security-announce/2017-08/msg00045.html", "id": "SUSE-SU-2017:2163-1", "title": "Security update for subversion (important)", "type": "suse", "cvss": {"score": 0.0, "vector": "NONE"}}, {"lastseen": "2017-08-17T17:07:39", "bulletinFamily": "unix", "cvelist": ["CVE-2016-2168", "CVE-2015-0248", "CVE-2015-3187", "CVE-2015-0251", "CVE-2015-0202", "CVE-2016-2167", "CVE-2015-5343", "CVE-2016-8734", "CVE-2017-9800", "CVE-2015-3184", "CVE-2014-3580", "CVE-2014-8108"], "description": "This update for subversion fixes the following issues:\n\n\n - CVE-2017-9800: A malicious, compromised server or MITM may cause svn\n client to execute arbitrary commands by sending repository content with\n svn:externals definitions pointing to crafted svn+ssh URLs. (bsc#1051362)\n\n - Malicious user may commit SHA-1 collisions and cause repository\n inconsistencies (bsc#1026936)\n\n - CVE-2016-8734: Unrestricted XML entity expansion in mod_dontdothat and\n Subversion clients using http(s):// could lead to denial of service\n (bsc#1011552)\n\n - CVE-2016-2167: svnserve/sasl may authenticate users using the wrong\n realm (bsc#976849)\n\n - CVE-2016-2168: Remotely triggerable DoS vulnerability in mod_authz_svn\n during COPY/MOVE authorization check (bsc#976850)\n\n - mod_authz_svn: fix authz with mod_auth_kerb/mod_auth_ntlm (bsc#977424)\n\n - make the subversion package conflict with KWallet and Gnome Keyring\n packages with do not require matching subversion versions in SLE 12 and\n openSUSE Leap 42.1 and thus break the main package upon partial upgrade.\n (bsc#969159)\n\n - CVE-2015-5343: Remotely triggerable heap overflow and out-of-bounds read\n in mod_dav_svn caused by integer overflow when parsing skel-encoded\n request bodies. (bsc#958300)\n\n - Avoid recommending 180+ new pkgs for installation on minimal setup due\n subversion-password-store (bsc#942819)\n\n - CVE-2015-3184: mod_authz_svn: mixed anonymous/authenticated httpd (dav)\n configurations could lead to information leak (bsc#939514)\n\n - CVE-2015-3187: do not leak paths that were hidden by path-based authz\n (bsc#939517)\n\n - CVE-2015-0202: Subversion HTTP servers with FSFS repositories were\n vulnerable to a remotely triggerable excessive memory use with certain\n REPORT requests. (bsc#923793)\n\n - CVE-2015-0248: Subversion mod_dav_svn and svnserve were vulnerable to a\n remotely triggerable assertion DoS vulnerability for certain requests\n with dynamically evaluated revision numbers. (bsc#923794)\n\n - CVE-2015-0251: Subversion HTTP servers allow spoofing svn:author\n property values for new revisions (bsc#923795)\n\n - fix sample configuration comments in subversion.conf (bsc#916286)\n\n - fix sysconfig file generation (bsc#911620)\n\n - CVE-2014-3580: mod_dav_svn invalid REPORT requests could lead to denial\n of service (bsc#909935)\n\n - CVE-2014-8108: mod_dav_svn use of invalid transaction names could lead\n to denial of service (bsc#909935)\n\n - INSTALL#SQLite says 'Subversion 1.8 requires SQLite version 3.7.12 or\n above'; therefore I lowered the sqlite requirement to make the\n subversion run on\n older system versions, tooi. [bsc#897033]\n\n", "edition": 1, "modified": "2017-08-17T12:10:12", "published": "2017-08-17T12:10:12", "href": "http://lists.opensuse.org/opensuse-security-announce/2017-08/msg00055.html", "id": "SUSE-SU-2017:2200-1", "title": "Security update for subversion (important)", "type": "suse", "cvss": {"score": 8.0, "vector": "AV:NETWORK/AC:LOW/Au:SINGLE_INSTANCE/C:PARTIAL/I:PARTIAL/A:COMPLETE/"}}], "ubuntu": [{"lastseen": "2020-07-02T11:33:19", "bulletinFamily": "unix", "cvelist": ["CVE-2016-2167", "CVE-2016-8734", "CVE-2017-9800"], "description": "Joern Schneeweisz discovered that Subversion did not properly handle \nhost names in 'svn+ssh://' URLs. A remote attacker could use this \nto construct a subversion repository that when accessed could run \narbitrary code with the privileges of the user. (CVE-2017-9800)\n\nDaniel Shahaf and James McCoy discovered that Subversion did not \nproperly verify realms when using Cyrus SASL authentication. A \nremote attacker could use this to possibly bypass intended access \nrestrictions. This issue only affected Ubuntu 14.04 LTS and Ubuntu \n16.04 LTS. (CVE-2016-2167)\n\nFlorian Weimer discovered that Subversion clients did not properly \nrestrict XML entity expansion when accessing http(s):// URLs. A remote \nattacker could use this to cause a denial of service. This issue only \naffected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-8734)", "edition": 5, "modified": "2017-08-11T00:00:00", "published": "2017-08-11T00:00:00", "id": "USN-3388-1", "href": "https://ubuntu.com/security/notices/USN-3388-1", "title": "Subversion vulnerabilities", "type": "ubuntu", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "cloudfoundry": [{"lastseen": "2019-05-29T18:32:56", "bulletinFamily": "software", "cvelist": ["CVE-2016-2167", "CVE-2016-8734", "CVE-2017-9800"], "description": "# \n\n# Severity\n\nMedium\n\n# Vendor\n\nCanonical Ubuntu\n\n# Versions Affected\n\n * Canonical Ubuntu 14.04\n\n# Description\n\nJoern Schneeweisz discovered that Subversion did not properly handle host names in \u2018svn+ssh://\u2019 URLs. A remote attacker could use this to construct a subversion repository that when accessed could run arbitrary code with the privileges of the user. ([CVE-2017-9800](<http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-9800>))\n\nDaniel Shahaf and James McCoy discovered that Subversion did not properly verify realms when using Cyrus SASL authentication. A remote attacker could use this to possibly bypass intended access restrictions. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. ([CVE-2016-2167](<http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-2167>))\n\nFlorian Weimer discovered that Subversion clients did not properly restrict XML entity expansion when accessing http(s):// URLs. A remote attacker could use this to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. ([CVE-2016-8734](<http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-8734>))\n\n# Affected Cloud Foundry Products and Versions\n\n_Severity is medium unless otherwise noted._\n\n * All versions of Cloud Foundry cflinuxfs2 prior to 1.147.0\n\n# Mitigation\n\nOSS users are strongly encouraged to follow one of the mitigations below:\n\n * The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs2 version 1.147.0 or later.\n\n# References\n\n * [USN-3388-1](<http://www.ubuntu.com/usn/usn-3388-1/>)\n * [CVE-2017-9800](<http://people.ubuntu.com/~ubuntu-security/cve/CVE-2017-9800>)\n * [CVE-2016-2167](<http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-2167>)\n * [CVE-2016-8734](<http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-8734>)\n", "edition": 5, "modified": "2017-08-17T00:00:00", "published": "2017-08-17T00:00:00", "id": "CFOUNDRY:D21D51A50EB896BB75DB194B9CF9D65F", "href": "https://www.cloudfoundry.org/blog/usn-3388-1/", "title": "USN-3388-1: Subversion vulnerabilities | Cloud Foundry", "type": "cloudfoundry", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "oracle": [{"lastseen": "2020-12-24T15:41:14", "bulletinFamily": "software", "cvelist": ["CVE-2013-7285", "CVE-2015-1832", "CVE-2015-9251", "CVE-2016-0701", "CVE-2016-1000031", "CVE-2016-1000338", "CVE-2016-1000339", "CVE-2016-1000340", "CVE-2016-1000341", "CVE-2016-1000342", "CVE-2016-1000343", "CVE-2016-1000344", "CVE-2016-1000345", "CVE-2016-1000346", "CVE-2016-1000352", "CVE-2016-10244", "CVE-2016-10328", "CVE-2016-2167", "CVE-2016-2168", "CVE-2016-2183", "CVE-2016-2510", "CVE-2016-3189", "CVE-2016-4800", "CVE-2016-5000", "CVE-2016-5300", "CVE-2016-5725", "CVE-2016-6153", "CVE-2016-6306", "CVE-2016-8610", "CVE-2016-8734", "CVE-2017-10989", "CVE-2017-12626", "CVE-2017-13098", "CVE-2017-13685", "CVE-2017-13745", "CVE-2017-14232", "CVE-2017-15095", "CVE-2017-15286", "CVE-2017-17485", "CVE-2017-3164", "CVE-2017-5644", "CVE-2017-5645", "CVE-2017-5662", "CVE-2017-7525", "CVE-2017-7656", "CVE-2017-7657", "CVE-2017-7658", "CVE-2017-7857", "CVE-2017-7858", "CVE-2017-7864", "CVE-2017-8105", "CVE-2017-8287", "CVE-2017-9096", "CVE-2017-9735", "CVE-2017-9800", "CVE-2018-1000180", "CVE-2018-1000613", "CVE-2018-1000873", "CVE-2018-11054", "CVE-2018-11055", "CVE-2018-11056", "CVE-2018-11057", "CVE-2018-11058", "CVE-2018-11307", "CVE-2018-12022", "CVE-2018-12023", "CVE-2018-12536", "CVE-2018-12538", "CVE-2018-12545", "CVE-2018-14718", "CVE-2018-15769", "CVE-2018-17196", "CVE-2018-18873", "CVE-2018-19139", "CVE-2018-19539", "CVE-2018-19540", "CVE-2018-19541", "CVE-2018-19542", "CVE-2018-19543", "CVE-2018-20346", "CVE-2018-20505", "CVE-2018-20506", "CVE-2018-20570", "CVE-2018-20584", "CVE-2018-20622", "CVE-2018-20843", "CVE-2018-2765", "CVE-2018-3693", "CVE-2018-5382", "CVE-2018-5968", "CVE-2018-6942", "CVE-2018-7489", "CVE-2018-8013", "CVE-2018-8088", "CVE-2018-8740", "CVE-2018-9055", "CVE-2018-9154", "CVE-2018-9252", "CVE-2019-0192", "CVE-2019-0201", "CVE-2019-10072", "CVE-2019-10097", "CVE-2019-1010239", "CVE-2019-10173", "CVE-2019-10241", "CVE-2019-10246", "CVE-2019-10247", "CVE-2019-10744", "CVE-2019-11048", "CVE-2019-11358", "CVE-2019-11477", "CVE-2019-11478", "CVE-2019-11479", "CVE-2019-11834", "CVE-2019-11835", "CVE-2019-11922", "CVE-2019-12086", "CVE-2019-12260", "CVE-2019-12261", "CVE-2019-12384", "CVE-2019-12402", "CVE-2019-12415", "CVE-2019-12419", "CVE-2019-12423", "CVE-2019-12814", "CVE-2019-12900", "CVE-2019-13990", "CVE-2019-14379", "CVE-2019-14540", "CVE-2019-14893", "CVE-2019-1547", "CVE-2019-1549", "CVE-2019-1552", "CVE-2019-1563", "CVE-2019-15903", "CVE-2019-16168", "CVE-2019-16335", "CVE-2019-16942", "CVE-2019-16943", "CVE-2019-17091", "CVE-2019-17267", "CVE-2019-17359", "CVE-2019-17495", "CVE-2019-17531", "CVE-2019-17543", "CVE-2019-17558", "CVE-2019-17569", "CVE-2019-17632", "CVE-2019-17638", "CVE-2019-18348", "CVE-2019-20330", "CVE-2019-2897", "CVE-2019-2904", "CVE-2019-3738", "CVE-2019-3739", "CVE-2019-3740", "CVE-2019-5018", "CVE-2019-5427", "CVE-2019-5435", "CVE-2019-5436", "CVE-2019-5443", "CVE-2019-5481", "CVE-2019-5482", "CVE-2019-8457", "CVE-2019-9511", "CVE-2019-9513", "CVE-2019-9936", "CVE-2019-9937", "CVE-2020-10108", "CVE-2020-10543", "CVE-2020-10650", "CVE-2020-10672", "CVE-2020-10673", "CVE-2020-10683", "CVE-2020-10722", "CVE-2020-10723", "CVE-2020-10724", "CVE-2020-10878", "CVE-2020-10968", "CVE-2020-10969", "CVE-2020-11022", "CVE-2020-11023", "CVE-2020-11080", "CVE-2020-11111", "CVE-2020-11112", "CVE-2020-11113", "CVE-2020-11619", "CVE-2020-11620", "CVE-2020-11655", "CVE-2020-11656", "CVE-2020-11971", "CVE-2020-11972", "CVE-2020-11973", "CVE-2020-11984", "CVE-2020-11993", "CVE-2020-11996", "CVE-2020-12243", "CVE-2020-12723", "CVE-2020-13630", "CVE-2020-13631", "CVE-2020-13632", "CVE-2020-13920", "CVE-2020-13934", "CVE-2020-13935", "CVE-2020-14060", "CVE-2020-14061", "CVE-2020-14062", "CVE-2020-14195", "CVE-2020-14672", "CVE-2020-14731", "CVE-2020-14732", "CVE-2020-14734", "CVE-2020-14735", "CVE-2020-14736", "CVE-2020-14740", "CVE-2020-14741", "CVE-2020-14742", "CVE-2020-14743", "CVE-2020-14744", "CVE-2020-14745", "CVE-2020-14746", "CVE-2020-14752", "CVE-2020-14753", "CVE-2020-14754", "CVE-2020-14757", "CVE-2020-14758", "CVE-2020-14759", "CVE-2020-14760", "CVE-2020-14761", "CVE-2020-14762", "CVE-2020-14763", "CVE-2020-14764", "CVE-2020-14765", "CVE-2020-14766", "CVE-2020-14767", "CVE-2020-14768", "CVE-2020-14769", "CVE-2020-14770", "CVE-2020-14771", "CVE-2020-14772", "CVE-2020-14773", "CVE-2020-14774", "CVE-2020-14775", "CVE-2020-14776", "CVE-2020-14777", "CVE-2020-14778", "CVE-2020-14779", "CVE-2020-14780", "CVE-2020-14781", "CVE-2020-14782", "CVE-2020-14783", "CVE-2020-14784", "CVE-2020-14785", "CVE-2020-14786", "CVE-2020-14787", "CVE-2020-14788", "CVE-2020-14789", "CVE-2020-14790", "CVE-2020-14791", "CVE-2020-14792", "CVE-2020-14793", "CVE-2020-14794", "CVE-2020-14795", "CVE-2020-14796", "CVE-2020-14797", "CVE-2020-14798", "CVE-2020-14799", "CVE-2020-14800", "CVE-2020-14801", "CVE-2020-14802", "CVE-2020-14803", "CVE-2020-14804", "CVE-2020-14805", "CVE-2020-14806", "CVE-2020-14807", "CVE-2020-14808", "CVE-2020-14809", "CVE-2020-14810", "CVE-2020-14811", "CVE-2020-14812", "CVE-2020-14813", "CVE-2020-14814", "CVE-2020-14815", "CVE-2020-14816", "CVE-2020-14817", "CVE-2020-14818", "CVE-2020-14819", "CVE-2020-14820", "CVE-2020-14821", "CVE-2020-14822", "CVE-2020-14823", "CVE-2020-14824", "CVE-2020-14825", "CVE-2020-14826", "CVE-2020-14827", "CVE-2020-14828", "CVE-2020-14829", "CVE-2020-14830", "CVE-2020-14831", "CVE-2020-14832", "CVE-2020-14833", "CVE-2020-14834", "CVE-2020-14835", "CVE-2020-14836", "CVE-2020-14837", "CVE-2020-14838", "CVE-2020-14839", "CVE-2020-14840", "CVE-2020-14841", "CVE-2020-14842", "CVE-2020-14843", "CVE-2020-14844", "CVE-2020-14845", "CVE-2020-14846", "CVE-2020-14847", "CVE-2020-14848", "CVE-2020-14849", "CVE-2020-14850", "CVE-2020-14851", "CVE-2020-14852", "CVE-2020-14853", "CVE-2020-14854", "CVE-2020-14855", "CVE-2020-14856", "CVE-2020-14857", "CVE-2020-14858", "CVE-2020-14859", "CVE-2020-14860", "CVE-2020-14861", "CVE-2020-14862", "CVE-2020-14863", "CVE-2020-14864", "CVE-2020-14865", "CVE-2020-14866", "CVE-2020-14867", "CVE-2020-14868", "CVE-2020-14869", "CVE-2020-14870", "CVE-2020-14871", "CVE-2020-14872", "CVE-2020-14873", "CVE-2020-14875", "CVE-2020-14876", "CVE-2020-14877", "CVE-2020-14878", "CVE-2020-14879", "CVE-2020-14880", "CVE-2020-14881", "CVE-2020-14882", "CVE-2020-14883", "CVE-2020-14884", "CVE-2020-14885", "CVE-2020-14886", "CVE-2020-14887", "CVE-2020-14888", "CVE-2020-14889", "CVE-2020-14890", "CVE-2020-14891", "CVE-2020-14892", "CVE-2020-14893", "CVE-2020-14894", "CVE-2020-14895", "CVE-2020-14896", "CVE-2020-14897", "CVE-2020-14898", "CVE-2020-14899", "CVE-2020-14900", "CVE-2020-14901", "CVE-2020-15358", "CVE-2020-15389", "CVE-2020-1730", "CVE-2020-1935", "CVE-2020-1938", "CVE-2020-1941", "CVE-2020-1945", "CVE-2020-1950", "CVE-2020-1951", "CVE-2020-1953", "CVE-2020-1954", "CVE-2020-1967", "CVE-2020-2555", "CVE-2020-3235", "CVE-2020-3909", "CVE-2020-4051", "CVE-2020-5397", "CVE-2020-5398", "CVE-2020-5407", "CVE-2020-5408", "CVE-2020-7067", "CVE-2020-8172", "CVE-2020-8174", "CVE-2020-8840", "CVE-2020-9281", "CVE-2020-9327", "CVE-2020-9409", "CVE-2020-9410", "CVE-2020-9484", "CVE-2020-9488", "CVE-2020-9489", "CVE-2020-9490", "CVE-2020-9546", "CVE-2020-9547", "CVE-2020-9548"], "description": "A Critical Patch Update is a collection of patches for multiple security vulnerabilities. These patches address vulnerabilities in Oracle code and in third-party components included in Oracle products. These patches are usually cumulative, but each advisory describes only the security patches added since the previous Critical Patch Update Advisory. Thus, prior Critical Patch Update advisories should be reviewed for information regarding earlier published security patches. Refer to [\u201cCritical Patch Updates, Security Alerts and Bulletins\u201d](<https://www.oracle.com/security-alerts/>) for information about Oracle Security advisories. \n \nStarting with the October 2020 Critical Patch Update, Oracle lists updates that address vulnerabilities in third-party components which are not exploitable in the context of their inclusion in their respective Oracle product beneath the product's risk matrix. Oracle has published two versions of the October 2020 Critical Patch Update Advisory: this version of the advisory implemented the change in how non-exploitable vulnerabilities in third-party components are reported, and the \u201ctraditional\u201d advisory follows the same format as the previous advisories. The \u201ctraditional\u201d advisory is published at <https://www.oracle.com/security-alerts/cpuoct2020traditional.html>. \n\n**Oracle continues to periodically receive reports of attempts to maliciously exploit vulnerabilities for which Oracle has already released security patches. In some instances, it has been reported that attackers have been successful because targeted customers had failed to apply available Oracle patches. Oracle therefore strongly recommends that customers remain on actively-supported versions and apply Critical Patch Update security patches without delay.**\n\nThis Critical Patch Update contains 403 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at [ October 2020 Critical Patch Update: Executive Summary and Analysis](<https://support.oracle.com/rs?type=doc&id=2712240.1>).\n", "modified": "2020-12-08T00:00:00", "published": "2020-10-20T00:00:00", "id": "ORACLE:CPUOCT2020", "href": "", "type": "oracle", "title": "Oracle Critical Patch Update Advisory - October 2020", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}]}