CVE-2017-15710
Vulnerability from cvelistv5
Published
2018-03-26 15:00
Modified
2024-09-17 03:37
Severity ?
Summary
In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user's credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, 'en-US' is truncated to 'en'). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all.
References
security@apache.orghttp://www.openwall.com/lists/oss-security/2018/03/24/8Mailing List, Third Party Advisory
security@apache.orghttp://www.securityfocus.com/bid/103512Third Party Advisory, VDB Entry
security@apache.orghttp://www.securitytracker.com/id/1040569Third Party Advisory, VDB Entry
security@apache.orghttps://access.redhat.com/errata/RHSA-2018:3558Third Party Advisory
security@apache.orghttps://access.redhat.com/errata/RHSA-2019:0366Third Party Advisory
security@apache.orghttps://access.redhat.com/errata/RHSA-2019:0367Third Party Advisory
security@apache.orghttps://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
security@apache.orghttps://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%40%3Ccvs.httpd.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467%40%3Ccvs.httpd.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
security@apache.orghttps://lists.debian.org/debian-lts-announce/2018/05/msg00020.htmlMailing List, Third Party Advisory
security@apache.orghttps://security.netapp.com/advisory/ntap-20180601-0004/Third Party Advisory
security@apache.orghttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_usThird Party Advisory
security@apache.orghttps://usn.ubuntu.com/3627-1/Third Party Advisory
security@apache.orghttps://usn.ubuntu.com/3627-2/Third Party Advisory
security@apache.orghttps://usn.ubuntu.com/3937-2/Third Party Advisory
security@apache.orghttps://www.debian.org/security/2018/dsa-4164Third Party Advisory
security@apache.orghttps://www.tenable.com/security/tns-2019-09
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2018/03/24/8Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/103512Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1040569Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:3558Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:0366Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:0367Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://httpd.apache.org/security/vulnerabilities_24.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%40%3Ccvs.httpd.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf%40%3Ccvs.httpd.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467%40%3Ccvs.httpd.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/05/msg00020.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20180601-0004/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_usThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3627-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3627-2/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3937-2/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2018/dsa-4164Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.tenable.com/security/tns-2019-09
Impacted products
Vendor Product Version
Show details on NVD website

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          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Apache HTTP Server",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "status": "affected",
              "version": "2.0.23 to 2.0.65"
            },
            {
              "status": "affected",
              "version": "2.2.0 to 2.2.34"
            },
            {
              "status": "affected",
              "version": "2.4.0 to 2.4.29"
            }
          ]
        }
      ],
      "datePublic": "2018-03-23T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user\u0027s credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, \u0027en-US\u0027 is truncated to \u0027en\u0027). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Out of bound write in mod_authnz_ldap when using too small Accept-Language values.",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-06-06T10:11:28",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "name": "USN-3627-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3627-1/"
        },
        {
          "name": "103512",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/103512"
        },
        {
          "name": "DSA-4164",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2018/dsa-4164"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://security.netapp.com/advisory/ntap-20180601-0004/"
        },
        {
          "name": "RHSA-2018:3558",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:3558"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03909en_us"
        },
        {
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En el peor de los casos, aunque poco probable, el proceso se bloquear\u00eda, lo que se podr\u00eda utilizar como un ataque denegaci\u00f3n de servicio (DoS). Es mucho m\u00e1s probable que esta memoria ya est\u00e9 reservada para su uso futuro y que el problema no tenga ning\u00fan tipo de impacto.\"}],\"metrics\":{\"cvssMetricV30\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-787\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.1:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"6FCD3C8C-9BF8-4F30-981A-593EEAEB9EDD\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.2:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"046487A3-752B-4D0F-8984-96486B828EAB\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.3:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"89D2E052-51CD-4B57-A8B8-FAE51988D654\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.4:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"EAA27058-BACF-4F94-8E3C-7D38EC302EC1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8FEAB0DF-04A9-4F99-8666-0BADC5D642B8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.7:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E7D924D1-8A36-4C43-9E56-52814F9A6350\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.9:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"39CDFECC-E26D-47E0-976F-6629040B3764\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.10:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E3ECBCB1-0675-41F5-857B-438F36925F63\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.12:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"CB6CBFBF-74F6-42AF-BC79-AA53EA75F00B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.16:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8717A96B-9DB5-48D6-A2CF-A5E2B26AF3F3\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.17:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"E1F45B27-504B-4202-87B8-BD3B094003F1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.18:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"F2FB2B98-DFD2-420A-8A7F-9B288651242F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.20:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"B803D25B-0A19-4569-BA05-09D58F33917C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.23:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"8510442C-212F-4013-85FA-E0AB59F6F2C6\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.25:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FB5673AB-53BB-40B2-83A7-8B82B2D0EBB8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.26:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FBB3ED63-45CA-44AB-973C-9AD2569AD800\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.27:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"FF30AD98-9CBA-456E-A827-79FCEDEB30A1\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.28:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C117BF2F-1E5B-4AEC-8770-3153E5B4CD07\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:http_server:2.4.29:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"437BC6D8-D103-452C-9C86-D89FC977A50F\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"16F59A04-14CF-49E2-9973-645477EA09DA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*\",\"matchCriteriaId\":\"DEECE5FC-CACF-4496-A3E7-164736409252\"}]}]},{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*\",\"matchCriteriaId\":\"8D305F7A-D159-4716-AB26-5E38BB5CD991\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*\",\"matchCri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  }
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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