**Issue Overview:**
A heap-based buffer overflow has been found in the Curl_smtp_escape_eob() function of curl. An attacker could exploit this by convincing a user to use curl to upload data over SMTP with a reduced buffer to cause a crash or corrupt memory.(CVE-2018-0500)
**Affected Packages:**
curl
**Issue Correction:**
Run _yum update curl_ to update your system.
**New Packages:**
src:
curl-7.55.1-12.amzn2.0.5.src
x86_64:
curl-7.55.1-12.amzn2.0.5.x86_64
libcurl-7.55.1-12.amzn2.0.5.x86_64
libcurl-devel-7.55.1-12.amzn2.0.5.x86_64
curl-debuginfo-7.55.1-12.amzn2.0.5.x86_64
### Additional References
Red Hat: [CVE-2018-0500](<https://access.redhat.com/security/cve/CVE-2018-0500>)
Mitre: [CVE-2018-0500](<https://vulners.com/cve/CVE-2018-0500>)
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An attacker could exploit this by convincing a user to use curl to upload data over SMTP with a reduced buffer to cause a crash or corrupt memory.\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-11T11:48:42", "type": "redhatcve", "title": "CVE-2018-0500", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2023-04-06T04:40:34", "id": "RH:CVE-2018-0500", "href": "https://access.redhat.com/security/cve/cve-2018-0500", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "cve": [{"lastseen": "2023-06-23T14:03:14", "description": "Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl 7.60.0 has a heap-based buffer overflow that might be exploitable by an attacker who can control the data that curl transmits over SMTP with certain settings (i.e., use of a nonstandard --limit-rate argument or CURLOPT_BUFFERSIZE value).", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-11T13:29:00", "type": "cve", "title": "CVE-2018-0500", "cwe": ["CWE-787"], "bulletinFamily": "NVD", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2020-08-24T17:37:00", "cpe": ["cpe:/o:canonical:ubuntu_linux:18.04", "cpe:/a:haxx:curl:7.60.0", "cpe:/o:canonical:ubuntu_linux:17.10"], "id": "CVE-2018-0500", "href": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2018-0500", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}, "cpe23": ["cpe:2.3:a:haxx:curl:7.60.0:*:*:*:*:*:*:*", "cpe:2.3:o:canonical:ubuntu_linux:17.10:*:*:*:*:*:*:*", "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*"]}], "ubuntu": [{"lastseen": "2023-06-23T15:49:59", "description": "## Releases\n\n * Ubuntu 18.04 ESM\n * Ubuntu 17.10 \n\n## Packages\n\n * curl \\- HTTP, HTTPS, and FTP client and client libraries\n\nPeter Wu discovered that curl incorrectly handled certain SMTP buffers. 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The size of this\ntemporary scratch area was mistakenly made to be 2 *\nsizeof(download_buffer) when it should have been made 2 *\nsizeof(upload_buffer). The upload and the download buffer sizes are\nidentically sized by default (16KB) but since version 7.54.1, curl can\nresize the download buffer into a smaller buffer (as well as larger).\nIf the download buffer size is set to a value smaller than 10923, the\nCurl_smtp_escape_eob() function might overflow the scratch buffer when\nsending contents of sufficient size and contents. The curl command line\ntool lowers the buffer size when --limit-rate is set to a value smaller\nthan 16KB.\n\nImpact\n======\n\nA remote attacker is able to execute arbitrary code when sending SMTP\ndata.\n\nReferences\n==========\n\nhttps://curl.haxx.se/docs/adv_2018-70a2.html\nhttps://security.archlinux.org/CVE-2018-0500", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-16T00:00:00", "type": "archlinux", "title": "[ASA-201807-10] curl: arbitrary code execution", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2018-07-16T00:00:00", "id": "ASA-201807-10", "href": "https://security.archlinux.org/ASA-201807-10", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-06-23T14:57:42", "description": "Arch Linux Security Advisory ASA-201807-6\n=========================================\n\nSeverity: High\nDate : 2018-07-16\nCVE-ID : CVE-2018-0500\nPackage : lib32-libcurl-compat\nType : arbitrary code execution\nRemote : Yes\nLink : https://security.archlinux.org/AVG-731\n\nSummary\n=======\n\nThe package lib32-libcurl-compat before version 7.61.0-1 is vulnerable\nto arbitrary code execution.\n\nResolution\n==========\n\nUpgrade to 7.61.0-1.\n\n# pacman -Syu \"lib32-libcurl-compat>=7.61.0-1\"\n\nThe problem has been fixed upstream in version 7.61.0.\n\nWorkaround\n==========\n\nNone.\n\nDescription\n===========\n\nIt has been discovered that curl before 7.61.0 might overflow a heap\nbased memory buffer when sending data over SMTP and using a reduced\nread buffer.\n\nWhen sending data over SMTP, curl allocates a separate \"scratch area\"\non the heap to be able to escape the uploaded data properly if the\nuploaded data contains data that requires it. The size of this\ntemporary scratch area was mistakenly made to be 2 *\nsizeof(download_buffer) when it should have been made 2 *\nsizeof(upload_buffer). The upload and the download buffer sizes are\nidentically sized by default (16KB) but since version 7.54.1, curl can\nresize the download buffer into a smaller buffer (as well as larger).\nIf the download buffer size is set to a value smaller than 10923, the\nCurl_smtp_escape_eob() function might overflow the scratch buffer when\nsending contents of sufficient size and contents. The curl command line\ntool lowers the buffer size when --limit-rate is set to a value smaller\nthan 16KB.\n\nImpact\n======\n\nA remote attacker is able to execute arbitrary code when sending SMTP\ndata.\n\nReferences\n==========\n\nhttps://curl.haxx.se/docs/adv_2018-70a2.html\nhttps://security.archlinux.org/CVE-2018-0500", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-16T00:00:00", "type": "archlinux", "title": "[ASA-201807-6] lib32-libcurl-compat: arbitrary code execution", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2018-07-16T00:00:00", "id": "ASA-201807-6", "href": "https://security.archlinux.org/ASA-201807-6", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-06-23T14:57:41", "description": "Arch Linux Security Advisory ASA-201807-5\n=========================================\n\nSeverity: High\nDate : 2018-07-16\nCVE-ID : CVE-2018-0500\nPackage : lib32-curl\nType : arbitrary code execution\nRemote : Yes\nLink : https://security.archlinux.org/AVG-730\n\nSummary\n=======\n\nThe package lib32-curl before version 7.61.0-1 is vulnerable to\narbitrary code execution.\n\nResolution\n==========\n\nUpgrade to 7.61.0-1.\n\n# pacman -Syu \"lib32-curl>=7.61.0-1\"\n\nThe problem has been fixed upstream in version 7.61.0.\n\nWorkaround\n==========\n\nNone.\n\nDescription\n===========\n\nIt has been discovered that curl before 7.61.0 might overflow a heap\nbased memory buffer when sending data over SMTP and using a reduced\nread buffer.\n\nWhen sending data over SMTP, curl allocates a separate \"scratch area\"\non the heap to be able to escape the uploaded data properly if the\nuploaded data contains data that requires it. The size of this\ntemporary scratch area was mistakenly made to be 2 *\nsizeof(download_buffer) when it should have been made 2 *\nsizeof(upload_buffer). The upload and the download buffer sizes are\nidentically sized by default (16KB) but since version 7.54.1, curl can\nresize the download buffer into a smaller buffer (as well as larger).\nIf the download buffer size is set to a value smaller than 10923, the\nCurl_smtp_escape_eob() function might overflow the scratch buffer when\nsending contents of sufficient size and contents. The curl command line\ntool lowers the buffer size when --limit-rate is set to a value smaller\nthan 16KB.\n\nImpact\n======\n\nA remote attacker is able to execute arbitrary code when sending SMTP\ndata.\n\nReferences\n==========\n\nhttps://curl.haxx.se/docs/adv_2018-70a2.html\nhttps://security.archlinux.org/CVE-2018-0500", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-16T00:00:00", "type": "archlinux", "title": "[ASA-201807-5] lib32-curl: arbitrary code execution", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2018-07-16T00:00:00", "id": "ASA-201807-5", "href": "https://security.archlinux.org/ASA-201807-5", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-06-23T14:57:42", "description": "Arch Linux Security Advisory ASA-201807-9\n=========================================\n\nSeverity: High\nDate : 2018-07-16\nCVE-ID : CVE-2018-0500\nPackage : libcurl-gnutls\nType : arbitrary code execution\nRemote : Yes\nLink : https://security.archlinux.org/AVG-734\n\nSummary\n=======\n\nThe package libcurl-gnutls before version 7.61.0-1 is vulnerable to\narbitrary code execution.\n\nResolution\n==========\n\nUpgrade to 7.61.0-1.\n\n# pacman -Syu \"libcurl-gnutls>=7.61.0-1\"\n\nThe problem has been fixed upstream in version 7.61.0.\n\nWorkaround\n==========\n\nNone.\n\nDescription\n===========\n\nIt has been discovered that curl before 7.61.0 might overflow a heap\nbased memory buffer when sending data over SMTP and using a reduced\nread buffer.\n\nWhen sending data over SMTP, curl allocates a separate \"scratch area\"\non the heap to be able to escape the uploaded data properly if the\nuploaded data contains data that requires it. The size of this\ntemporary scratch area was mistakenly made to be 2 *\nsizeof(download_buffer) when it should have been made 2 *\nsizeof(upload_buffer). The upload and the download buffer sizes are\nidentically sized by default (16KB) but since version 7.54.1, curl can\nresize the download buffer into a smaller buffer (as well as larger).\nIf the download buffer size is set to a value smaller than 10923, the\nCurl_smtp_escape_eob() function might overflow the scratch buffer when\nsending contents of sufficient size and contents. The curl command line\ntool lowers the buffer size when --limit-rate is set to a value smaller\nthan 16KB.\n\nImpact\n======\n\nA remote attacker is able to execute arbitrary code when sending SMTP\ndata.\n\nReferences\n==========\n\nhttps://curl.haxx.se/docs/adv_2018-70a2.html\nhttps://security.archlinux.org/CVE-2018-0500", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-16T00:00:00", "type": "archlinux", "title": "[ASA-201807-9] libcurl-gnutls: arbitrary code execution", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2018-07-16T00:00:00", "id": "ASA-201807-9", "href": "https://security.archlinux.org/ASA-201807-9", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-06-23T14:57:43", "description": "Arch Linux Security Advisory ASA-201807-7\n=========================================\n\nSeverity: High\nDate : 2018-07-16\nCVE-ID : CVE-2018-0500\nPackage : lib32-libcurl-gnutls\nType : arbitrary code execution\nRemote : Yes\nLink : https://security.archlinux.org/AVG-732\n\nSummary\n=======\n\nThe package lib32-libcurl-gnutls before version 7.61.0-1 is vulnerable\nto arbitrary code execution.\n\nResolution\n==========\n\nUpgrade to 7.61.0-1.\n\n# pacman -Syu \"lib32-libcurl-gnutls>=7.61.0-1\"\n\nThe problem has been fixed upstream in version 7.61.0.\n\nWorkaround\n==========\n\nNone.\n\nDescription\n===========\n\nIt has been discovered that curl before 7.61.0 might overflow a heap\nbased memory buffer when sending data over SMTP and using a reduced\nread buffer.\n\nWhen sending data over SMTP, curl allocates a separate \"scratch area\"\non the heap to be able to escape the uploaded data properly if the\nuploaded data contains data that requires it. The size of this\ntemporary scratch area was mistakenly made to be 2 *\nsizeof(download_buffer) when it should have been made 2 *\nsizeof(upload_buffer). The upload and the download buffer sizes are\nidentically sized by default (16KB) but since version 7.54.1, curl can\nresize the download buffer into a smaller buffer (as well as larger).\nIf the download buffer size is set to a value smaller than 10923, the\nCurl_smtp_escape_eob() function might overflow the scratch buffer when\nsending contents of sufficient size and contents. The curl command line\ntool lowers the buffer size when --limit-rate is set to a value smaller\nthan 16KB.\n\nImpact\n======\n\nA remote attacker is able to execute arbitrary code when sending SMTP\ndata.\n\nReferences\n==========\n\nhttps://curl.haxx.se/docs/adv_2018-70a2.html\nhttps://security.archlinux.org/CVE-2018-0500", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-16T00:00:00", "type": "archlinux", "title": "[ASA-201807-7] lib32-libcurl-gnutls: arbitrary code execution", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2018-07-16T00:00:00", "id": "ASA-201807-7", "href": "https://security.archlinux.org/ASA-201807-7", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2023-06-23T14:57:40", "description": "Arch Linux Security Advisory ASA-201807-8\n=========================================\n\nSeverity: High\nDate : 2018-07-16\nCVE-ID : CVE-2018-0500\nPackage : libcurl-compat\nType : arbitrary code execution\nRemote : Yes\nLink : https://security.archlinux.org/AVG-733\n\nSummary\n=======\n\nThe package libcurl-compat before version 7.61.0-1 is vulnerable to\narbitrary code execution.\n\nResolution\n==========\n\nUpgrade to 7.61.0-1.\n\n# pacman -Syu \"libcurl-compat>=7.61.0-1\"\n\nThe problem has been fixed upstream in version 7.61.0.\n\nWorkaround\n==========\n\nNone.\n\nDescription\n===========\n\nIt has been discovered that curl before 7.61.0 might overflow a heap\nbased memory buffer when sending data over SMTP and using a reduced\nread buffer.\n\nWhen sending data over SMTP, curl allocates a separate \"scratch area\"\non the heap to be able to escape the uploaded data properly if the\nuploaded data contains data that requires it. The size of this\ntemporary scratch area was mistakenly made to be 2 *\nsizeof(download_buffer) when it should have been made 2 *\nsizeof(upload_buffer). The upload and the download buffer sizes are\nidentically sized by default (16KB) but since version 7.54.1, curl can\nresize the download buffer into a smaller buffer (as well as larger).\nIf the download buffer size is set to a value smaller than 10923, the\nCurl_smtp_escape_eob() function might overflow the scratch buffer when\nsending contents of sufficient size and contents. The curl command line\ntool lowers the buffer size when --limit-rate is set to a value smaller\nthan 16KB.\n\nImpact\n======\n\nA remote attacker is able to execute arbitrary code when sending SMTP\ndata.\n\nReferences\n==========\n\nhttps://curl.haxx.se/docs/adv_2018-70a2.html\nhttps://security.archlinux.org/CVE-2018-0500", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-16T00:00:00", "type": "archlinux", "title": "[ASA-201807-8] libcurl-compat: arbitrary code execution", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2018-07-16T00:00:00", "id": "ASA-201807-8", "href": "https://security.archlinux.org/ASA-201807-8", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "freebsd": [{"lastseen": "2023-06-23T15:10:47", "description": "\n\nPeter Wu reports:\n\ncurl might overflow a heap based memory buffer when sending data over SMTP and using a reduced read buffer.\n\n\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-11T00:00:00", "type": "freebsd", "title": "curl -- SMTP send heap buffer overflow", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2018-07-28T00:00:00", "id": "3849E28F-8693-11E8-9610-9C5C8E75236A", "href": "https://vuxml.freebsd.org/freebsd/3849e28f-8693-11e8-9610-9c5c8e75236a.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "veracode": [{"lastseen": "2023-04-18T15:41:10", "description": "libcurl is vulnerable to heap-based buffer overflow. The vulnerability is due to not using upload buffer size for scratch buffer in `Curl_smtp_escape_eob` in `lib/smtp.c`. It is possible only when an attacker can get control over the data transmitted over SMTP using curl with certain settings (i.e., use of a nonstandard --limit-rate argument or CURLOPT_BUFFERSIZE value).,\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-13T04:32:34", "type": "veracode", "title": "Heap-Based Buffer Overflow", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2019-05-15T06:18:37", "id": "VERACODE:7050", "href": "https://sca.analysiscenter.veracode.com/vulnerability-database/security/1/1/sid-7050/summary", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "alpinelinux": [{"lastseen": "2023-06-23T15:26:42", "description": "Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl 7.60.0 has a heap-based buffer overflow that might be exploitable by an attacker who can control the data that curl transmits over SMTP with certain settings (i.e., use of a nonstandard --limit-rate argument or CURLOPT_BUFFERSIZE value).", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-11T13:29:00", "type": "alpinelinux", "title": "CVE-2018-0500", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2020-08-24T17:37:00", "id": "ALPINE:CVE-2018-0500", "href": "https://security.alpinelinux.org/vuln/CVE-2018-0500", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "ubuntucve": [{"lastseen": "2023-06-29T14:43:21", "description": "Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl\n7.60.0 has a heap-based buffer overflow that might be exploitable by an\nattacker who can control the data that curl transmits over SMTP with\ncertain settings (i.e., use of a nonstandard --limit-rate argument or\nCURLOPT_BUFFERSIZE value).\n\n#### Notes\n\nAuthor| Note \n---|--- \n[mdeslaur](<https://launchpad.net/~mdeslaur>) | introduced by: https://github.com/curl/curl/commit/e40e9d7f0decc79 curl 7.54.1 to and including curl 7.60.0\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-11T00:00:00", "type": "ubuntucve", "title": "CVE-2018-0500", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2018-07-11T00:00:00", "id": "UB:CVE-2018-0500", "href": "https://ubuntu.com/security/CVE-2018-0500", "cvss": {"score": 7.5, "vector": 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emerge --sync\n # emerge --ask --oneshot --verbose \">=net-misc/curl-7.61.0\"", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-29T00:00:00", "type": "gentoo", "title": "cURL: Heap-based buffer overflow", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2018-07-29T00:00:00", "id": "GLSA-201807-04", "href": "https://security.gentoo.org/glsa/201807-04", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "debiancve": [{"lastseen": "2023-06-23T14:36:14", "description": "Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl 7.60.0 has a heap-based buffer overflow that might be exploitable by an attacker who can control the data that curl transmits over SMTP with certain settings (i.e., use of a nonstandard --limit-rate argument or CURLOPT_BUFFERSIZE value).", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-11T13:29:00", "type": "debiancve", "title": "CVE-2018-0500", "bulletinFamily": "info", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2018-07-11T13:29:00", "id": "DEBIANCVE:CVE-2018-0500", "href": "https://security-tracker.debian.org/tracker/CVE-2018-0500", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "altlinux": [{"lastseen": "2023-05-07T11:55:55", "description": "July 17, 2018 Anton Farygin 7.61.0-alt1\n \n \n - 7.61.0\n - fixes:\n * CVE-2018-0500 SMTP send heap buffer overflow\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-07-17T00:00:00", "type": "altlinux", "title": "Security fix for the ALT Linux 8 package curl version 7.61.0-alt1", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500"], "modified": "2018-07-17T00:00:00", "id": "98F18A2A6698BB6A1C385F4F4D9E0E29", "href": "https://packages.altlinux.org/en/p8/srpms/curl/", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "amazon": [{"lastseen": "2023-06-23T14:58:58", "description": "**Issue Overview:**\n\nset_file_metadata in xattr.c in GNU Wget stores a file's origin URL in the user.xdg.origin.url metadata attribute of the extended attributes of the downloaded file, which allows local users to obtain sensitive information (e.g., credentials contained in the URL) by reading this attribute, as demonstrated by getfattr. This also applies to Referer information in the user.xdg.referrer.url metadata attribute. According to 2016-07-22 in the Wget ChangeLog, user.xdg.origin.url was partially based on the behavior of fwrite_xattr in tool_xattr.c in curl.(CVE-2018-20483)\n\nA heap-based buffer overflow has been found in the Curl_smtp_escape_eob() function of curl. An attacker could exploit this by convincing a user to use curl to upload data over SMTP with a reduced buffer to cause a crash or corrupt memory.(CVE-2018-0500)\n\n \n**Affected Packages:** \n\n\ncurl\n\n \n**Issue Correction:** \nRun _yum update curl_ to update your system. \n\n\n \n\n\n**New Packages:**\n \n \n i686: \n \u00a0\u00a0\u00a0 curl-7.61.1-7.91.amzn1.i686 \n \u00a0\u00a0\u00a0 libcurl-devel-7.61.1-7.91.amzn1.i686 \n \u00a0\u00a0\u00a0 libcurl-7.61.1-7.91.amzn1.i686 \n \u00a0\u00a0\u00a0 curl-debuginfo-7.61.1-7.91.amzn1.i686 \n \n src: \n \u00a0\u00a0\u00a0 curl-7.61.1-7.91.amzn1.src \n \n x86_64: \n \u00a0\u00a0\u00a0 libcurl-devel-7.61.1-7.91.amzn1.x86_64 \n \u00a0\u00a0\u00a0 libcurl-7.61.1-7.91.amzn1.x86_64 \n \u00a0\u00a0\u00a0 curl-debuginfo-7.61.1-7.91.amzn1.x86_64 \n \u00a0\u00a0\u00a0 curl-7.61.1-7.91.amzn1.x86_64 \n \n \n\n### Additional References\n\nRed Hat: [CVE-2018-0500](<https://access.redhat.com/security/cve/CVE-2018-0500>), [CVE-2018-20483](<https://access.redhat.com/security/cve/CVE-2018-20483>)\n\nMitre: [CVE-2018-0500](<https://vulners.com/cve/CVE-2018-0500>), [CVE-2018-20483](<https://vulners.com/cve/CVE-2018-20483>)\n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2019-02-07T04:24:00", "type": "amazon", "title": "Medium: curl", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500", "CVE-2018-20483"], "modified": "2019-02-08T06:25:00", "id": "ALAS-2019-1151", "href": "https://alas.aws.amazon.com/ALAS-2019-1151.html", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}], "fedora": [{"lastseen": "2020-12-21T08:17:54", "description": "curl is a command line tool for transferring data with URL syntax, supporti ng FTP, FTPS, HTTP, HTTPS, SCP, SFTP, TFTP, TELNET, DICT, LDAP, LDAPS, FILE, I MAP, SMTP, POP3 and RTSP. curl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form based upload, proxies, cookies, user+password authentication (Basic, Digest, NTLM, Negotiate, kerberos...), file transfer resume, proxy tunneling and a busload of other useful tricks. ", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 5.9}, "published": "2018-07-17T15:19:09", "type": "fedora", "title": "[SECURITY] Fedora 28 Update: curl-7.59.0-5.fc28", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 6.4, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500", "CVE-2018-1000300", "CVE-2018-1000301"], "modified": "2018-07-17T15:19:09", "id": "FEDORA:CA8A7633DB72", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/XTD5Q5WNK66JBAMLLVQITV7QBTOR4NW6/", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}, {"lastseen": "2021-07-28T14:46:50", "description": "curl is a command line tool for transferring data with URL syntax, supporti ng FTP, FTPS, HTTP, HTTPS, SCP, SFTP, TFTP, TELNET, DICT, LDAP, LDAPS, FILE, I MAP, SMTP, POP3 and RTSP. curl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form based upload, proxies, cookies, user+password authentication (Basic, Digest, NTLM, Negotiate, kerberos...), file transfer resume, proxy tunneling and a busload of other useful tricks. ", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 5.9}, "published": "2018-09-09T09:40:59", "type": "fedora", "title": "[SECURITY] Fedora 28 Update: curl-7.59.0-7.fc28", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500", "CVE-2018-1000300", "CVE-2018-1000301", "CVE-2018-14618"], "modified": "2018-09-09T09:40:59", "id": "FEDORA:C34566075EEA", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/HQLB73JQDITJ7NUFXPGCGRGND3ZIZUBA/", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2021-07-28T14:46:50", "description": "curl is a command line tool for transferring data with URL syntax, supporti ng FTP, FTPS, HTTP, HTTPS, SCP, SFTP, TFTP, TELNET, DICT, LDAP, LDAPS, FILE, I MAP, SMTP, POP3 and RTSP. curl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form based upload, proxies, cookies, user+password authentication (Basic, Digest, NTLM, Negotiate, kerberos...), file transfer resume, proxy tunneling and a busload of other useful tricks. ", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 5.9}, "published": "2018-11-21T03:14:20", "type": "fedora", "title": "[SECURITY] Fedora 28 Update: curl-7.59.0-9.fc28", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500", "CVE-2018-1000300", "CVE-2018-1000301", "CVE-2018-14618", "CVE-2018-16839", "CVE-2018-16840", "CVE-2018-16842"], "modified": "2018-11-21T03:14:20", "id": "FEDORA:34EA76087F11", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/UJDKXZW43FFRCVV6EVUWTG3DGR4KM2QK/", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}, {"lastseen": "2021-07-28T14:46:50", "description": "curl is a command line tool for transferring data with URL syntax, supporti ng FTP, FTPS, HTTP, HTTPS, SCP, SFTP, TFTP, TELNET, DICT, LDAP, LDAPS, FILE, I MAP, SMTP, POP3 and RTSP. curl supports SSL certificates, HTTP POST, HTTP PUT, FTP uploading, HTTP form based upload, proxies, cookies, user+password authentication (Basic, Digest, NTLM, Negotiate, kerberos...), file transfer resume, proxy tunneling and a busload of other useful tricks. ", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "baseScore": 9.8, "privilegesRequired": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "userInteraction": "NONE", "version": "3.0"}, "impactScore": 5.9}, "published": "2018-11-08T02:20:51", "type": "fedora", "title": "[SECURITY] Fedora 28 Update: curl-7.59.0-8.fc28", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "acInsufInfo": false, "impactScore": 10.0, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500", "CVE-2018-1000300", "CVE-2018-1000301", "CVE-2018-14618", "CVE-2018-16839", "CVE-2018-16840", "CVE-2018-16842"], "modified": "2018-11-08T02:20:51", "id": "FEDORA:759B2649E501", "href": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/CY3FMTULEN5U4BHBA4JUEBUSZRCLNHJX/", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}], "mageia": [{"lastseen": "2023-06-23T15:16:53", "description": "Updated curl packages fix security vulnerabilities: Peter Wu discovered that curl incorrectly handled certain SMTP buffers. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code (CVE-2018-0500). Zhaoyang Wu discovered that cURL, an URL transfer library, contains a buffer overflow in the NTLM authentication code triggered by passwords that exceed 2GB in length on 32bit systems (CVE-2018-14618). Phan Thanh discovered that curl incorrectly handled certain FTP paths. An attacker could use this to cause a denial of service or possibly execute arbitrary code (CVE-2018-1000120). Dario Weisser discovered that curl incorrectly handled certain LDAP URLs. An attacker could possibly use this issue to cause a denial of service (CVE-2018-1000121). Max Dymond discovered that curl incorrectly handled certain RTSP data. An attacker could possibly use this to cause a denial of service or even to get access to sensitive data (CVE-2018-1000122). A heap-based buffer overflow can happen when closing down an FTP connection with very long server command replies. When doing FTP transfers, curl keeps a spare \"closure handle\" around internally that will be used when an FTP connection gets shut down since the original curl easy handle is then already removed. FTP server response data that gets cached from the original transfer might then be larger than the default buffer size (16 KB) allocated in the \"closure handle\", which can lead to a buffer overwrite. The contents and size of that overwrite is controllable by the server (CVE-2018-1000300). curl can be tricked into reading data beyond the end of a heap based buffer used to store downloaded content. When servers send RTSP responses back to curl, the data starts out with a set of headers. curl parses that data to separate it into a number of headers to deal with those appropriately and to find the end of the headers that signal the start of the \"body\" part. The function that splits up the response into headers is called \"Curl_http_readwrite_headers()\" and in situations where it can't find a single header in the buffer, it might end up leaving a pointer pointing into the buffer instead of to the start of the buffer which then later on may lead to an out of buffer read when code assumes that pointer points to a full buffer size worth of memory to use. This could potentially lead to information leakage but most likely a crash/denial of service for applications if a server triggers this flaw (CVE-2018-1000301). \n", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-10-30T18:01:43", "type": "mageia", "title": "Updated curl packages fix security vulnerabilities\n", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2018-0500", "CVE-2018-1000120", "CVE-2018-1000121", "CVE-2018-1000122", "CVE-2018-1000300", "CVE-2018-1000301", "CVE-2018-14618"], "modified": "2018-10-30T18:01:43", "id": "MGASA-2018-0423", "href": "https://advisories.mageia.org/MGASA-2018-0423.html", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}], "ibm": [{"lastseen": "2023-02-24T01:39:06", "description": "## Summary\n\nMultiple Vulnerabilities in libCurl affects IBM Watson Studio Local\n\n## Vulnerability Details\n\n** CVEID: **[CVE-2019-5435](<https://vulners.com/cve/CVE-2019-5435>) \n** DESCRIPTION: **An integer overflow in curl's URL API results in a buffer overflow in libcurl 7.62.0 to and including 7.64.1. \nCVSS Base score: 7.3 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/161429](<https://exchange.xforce.ibmcloud.com/vulnerabilities/161429>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)\n\n \n** CVEID: **[CVE-2019-5436](<https://vulners.com/cve/CVE-2019-5436>) \n** DESCRIPTION: **A heap buffer overflow in the TFTP receiving code allows for DoS or arbitrary code execution in libcurl versions 7.19.4 through 7.64.1. \nCVSS Base score: 6.3 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/161431](<https://exchange.xforce.ibmcloud.com/vulnerabilities/161431>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)\n\n \n** CVEID: **[CVE-2018-16839](<https://vulners.com/cve/CVE-2018-16839>) \n** DESCRIPTION: **Curl versions 7.33.0 through 7.61.1 are vulnerable to a buffer overrun in the SASL authentication code that may lead to denial of service. \nCVSS Base score: 5.3 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/152298](<https://exchange.xforce.ibmcloud.com/vulnerabilities/152298>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)\n\n \n** CVEID: **[CVE-2018-16840](<https://vulners.com/cve/CVE-2018-16840>) \n** DESCRIPTION: **A heap use-after-free flaw was found in curl versions from 7.59.0 through 7.61.1 in the code related to closing an easy handle. When closing and cleaning up an 'easy' handle in the `Curl_close()` function, the library code first frees a struct (without nulling the pointer) and might then subsequently erroneously write to a struct field within that already freed struct. \nCVSS Base score: 5.3 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/152299](<https://exchange.xforce.ibmcloud.com/vulnerabilities/152299>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)\n\n \n** CVEID: **[CVE-2018-1000301](<https://vulners.com/cve/CVE-2018-1000301>) \n** DESCRIPTION: **curl version curl 7.20.0 to and including curl 7.59.0 contains a CWE-126: Buffer Over-read vulnerability in denial of service that can result in curl can be tricked into reading data beyond the end of a heap based buffer used to store downloaded RTSP content.. This vulnerability appears to have been fixed in curl < 7.20.0 and curl >= 7.60.0. \nCVSS Base score: 6.5 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/143390](<https://exchange.xforce.ibmcloud.com/vulnerabilities/143390>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L)\n\n \n** CVEID: **[CVE-2018-1000300](<https://vulners.com/cve/CVE-2018-1000300>) \n** DESCRIPTION: **curl version curl 7.54.1 to and including curl 7.59.0 contains a CWE-122: Heap-based Buffer Overflow vulnerability in denial of service and more that can result in curl might overflow a heap based memory buffer when closing down an FTP connection with very long server command replies.. This vulnerability appears to have been fixed in curl< 7.54.1 and curl >= 7.60.0. \nCVSS Base score: 7.3 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/143388](<https://exchange.xforce.ibmcloud.com/vulnerabilities/143388>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)\n\n \n** CVEID: **[CVE-2018-14618](<https://vulners.com/cve/CVE-2018-14618>) \n** DESCRIPTION: **curl before version 7.61.1 is vulnerable to a buffer overrun in the NTLM authentication code. The internal function Curl_ntlm_core_mk_nt_hash multiplies the length of the password by two (SUM) to figure out how large temporary storage area to allocate from the heap. The length value is then subsequently used to iterate over the password and generate output into the allocated storage buffer. On systems with a 32 bit size_t, the math to calculate SUM triggers an integer overflow when the password length exceeds 2GB (2^31 bytes). This integer overflow usually causes a very small buffer to actually get allocated instead of the intended very huge one, making the use of that buffer end up in a heap buffer overflow. (This bug is almost identical to CVE-2017-8816.) \nCVSS Base score: 9.8 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/149359](<https://exchange.xforce.ibmcloud.com/vulnerabilities/149359>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)\n\n \n** CVEID: **[CVE-2018-0500](<https://vulners.com/cve/CVE-2018-0500>) \n** DESCRIPTION: **Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl 7.60.0 has a heap-based buffer overflow that might be exploitable by an attacker who can control the data that curl transmits over SMTP with certain settings (i.e., use of a nonstandard --limit-rate argument or CURLOPT_BUFFERSIZE value). \nCVSS Base score: 9.8 \nCVSS Temporal Score: See: [ https://exchange.xforce.ibmcloud.com/vulnerabilities/146198](<https://exchange.xforce.ibmcloud.com/vulnerabilities/146198>) for the current score. \nCVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) \n\n## Affected Products and Versions\n\nAffected Product(s)| Version(s) \n---|--- \nIBM Watson Studio - Local| 1.2.3 \n \n\n\n## Remediation/Fixes\n\nProduct| VRMF| Remediation/First Fix \n---|---|--- \nIBM Watson Studio Local| 2.1| <https://www.ibm.com/software/passportadvantage/pao_customer.html> \nIBM Cloud Pak for Data| 2.5| <https://www.ibm.com/software/passportadvantage/pao_customer.html> \n \n## Workarounds and Mitigations\n\nNone\n\n## ", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.0", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2019-12-20T13:58:51", "type": "ibm", "title": "Security Bulletin: Multiple Vulnerabilities in libCurl affects IBM Watson Studio Local", "bulletinFamily": "software", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "COMPLETE", "availabilityImpact": "COMPLETE", "integrityImpact": "COMPLETE", "baseScore": 10.0, "vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 10.0, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2017-8816", "CVE-2018-0500", "CVE-2018-1000300", "CVE-2018-1000301", "CVE-2018-14618", "CVE-2018-16839", "CVE-2018-16840", "CVE-2019-5435", "CVE-2019-5436"], "modified": "2019-12-20T13:58:51", "id": "874F8E6A5239ED9E35FE02AC8B09D496B7FEDA60C7FEFCF04B0223997BC26FBB", "href": "https://www.ibm.com/support/pages/node/1143490", "cvss": {"score": 10.0, "vector": "AV:N/AC:L/Au:N/C:C/I:C/A:C"}}], "redhat": [{"lastseen": "2023-09-12T04:37:38", "description": "This release adds the new Apache HTTP Server 2.4.29 packages that are part\nof the JBoss Core Services offering.\n\nThis release serves as a replacement for Red Hat JBoss Core Services\nApache HTTP Server 2.4.23, and includes bug fixes and enhancements. Refer\nto the Release Notes for information on the most significant bug fixes,\nenhancements and component upgrades included in this release.\n\nSecurity Fix(es):\n\n* expat: Out-of-bounds heap read on crafted input causing crash (CVE-2016-0718)\n* curl: escape and unescape integer overflows (CVE-2016-7167)\n* curl: Cookie injection for other servers (CVE-2016-8615)\n* curl: Case insensitive password comparison (CVE-2016-8616)\n* curl: Out-of-bounds write via unchecked multiplication (CVE-2016-8617)\n* curl: Double-free in curl_maprintf (CVE-2016-8618)\n* curl: Double-free in krb5 code (CVE-2016-8619)\n* curl: curl_getdate out-of-bounds read (CVE-2016-8621)\n* curl: URL unescape heap overflow via integer truncation (CVE-2016-8622)\n* curl: Use-after-free via shared cookies (CVE-2016-8623)\n* curl: Invalid URL parsing with '#' (CVE-2016-8624)\n* curl: IDNA 2003 makes curl use wrong host (CVE-2016-8625)\n* libxml2: out-of-bounds read (unfixed CVE-2016-4483 in JBCS) (CVE-2016-9598)\n* pcre: Out-of-bounds read in compile_bracket_matchingpath function (8.41/3) (CVE-2017-6004)\n* pcre: Invalid Unicode property lookup (8.41/7, 10.24/2) (CVE-2017-7186)\n* pcre: invalid memory read in_pcre32_xclass (pcre_xclass.c) (CVE-2017-7244)\n* pcre: stack-based buffer overflow write in pcre32_copy_substring (CVE-2017-7245)\n* pcre: stack-based buffer overflow write in pcre32_copy_substring (CVE-2017-7246)\n* curl: FTP PWD response parser out of bounds read (CVE-2017-1000254)\n* curl: IMAP FETCH response out of bounds read (CVE-2017-1000257)\n* curl: Heap-based buffer overflow in Curl_smtp_escape_eob() when uploading data over SMTP (CVE-2018-0500)\n\nDetails around this issue, including information about the CVE, severity of\nthe issue, and the CVSS score can be found on the CVE page listed in the\nReference section below.\n\nThe following packages have been upgraded to a newer upstream version:\n* Curl (7.57.0)\n* OpenSSL (1.0.2n)\n* Expat (2.2.5)\n* PCRE (8.41)\n* libxml2 (2.9.7)\n\nAcknowledgements:\n\nCVE-2017-1000254: Red Hat would like to thank Daniel Stenberg for reporting this issue.\nUpstream acknowledges Max Dymond as the original reporter.\nCVE-2017-1000257: Red Hat would like to thank the Curl project for reporting this issue. Upstream acknowledges Brian Carpenter, (the OSS-Fuzz project) as the original reporter.\nCVE-2018-0500: Red Hat would like to thank the Curl project for reporting this issue.", "cvss3": {"exploitabilityScore": 3.9, "cvssV3": {"baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "attackComplexity": "LOW", "scope": "UNCHANGED", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "baseScore": 9.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1", "userInteraction": "NONE"}, "impactScore": 5.9}, "published": "2018-08-16T16:05:21", "type": "redhat", "title": "(RHSA-2018:2486) Important: Red Hat JBoss Core Services Apache HTTP Server 2.4.29 security update", "bulletinFamily": "unix", "cvss2": {"severity": "HIGH", "exploitabilityScore": 10.0, "obtainAllPrivilege": false, "userInteractionRequired": false, "obtainOtherPrivilege": false, "cvssV2": {"accessComplexity": "LOW", "confidentialityImpact": "PARTIAL", "availabilityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "baseScore": 7.5, "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0", "accessVector": "NETWORK", "authentication": "NONE"}, "impactScore": 6.4, "acInsufInfo": false, "obtainUserPrivilege": false}, "cvelist": ["CVE-2016-0718", "CVE-2016-4483", "CVE-2016-4975", "CVE-2016-5131", "CVE-2016-7167", "CVE-2016-8615", "CVE-2016-8616", "CVE-2016-8617", "CVE-2016-8618", "CVE-2016-8619", "CVE-2016-8621", "CVE-2016-8622", "CVE-2016-8623", "CVE-2016-8624", "CVE-2016-8625", "CVE-2016-9318", "CVE-2016-9596", "CVE-2016-9597", "CVE-2016-9598", "CVE-2017-1000254", "CVE-2017-1000257", "CVE-2017-18258", "CVE-2017-6004", "CVE-2017-7186", "CVE-2017-7244", "CVE-2017-7245", "CVE-2017-7246", "CVE-2017-9047", "CVE-2017-9048", "CVE-2017-9049", "CVE-2017-9050", "CVE-2018-0500"], "modified": "2018-09-05T05:26:14", "id": "RHSA-2018:2486", "href": "https://access.redhat.com/errata/RHSA-2018:2486", "cvss": {"score": 7.5, "vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P"}}]}
Medium: curl
