RHSA-2020:1336
Vulnerability from csaf_redhat - Published: 2020-04-06 19:09 - Updated: 2026-03-18 02:05Summary
Red Hat Security Advisory: Red Hat JBoss Core Services Apache HTTP Server 2.4.37 SP2 security update
Severity
Moderate
Notes
Topic: Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 2 zip release for RHEL 6, RHEL 7 and Microsoft Windows is available.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products, and is packaged under Red Hat JBoss Core Services to allow for faster distribution of updates, and for a more consistent update experience.
This release adds the new Apache HTTP Server 2.4.37 Service Pack 2 packages that are part of the JBoss Core Services offering.
This release serves as a replacement for Red Hat JBoss Core Services Pack Apache Server 2.4.37 Service Pack 1 and includes bug fixes and enhancements. Refer to the Release Notes for information on the most significant bug fixes and enhancements included in this release.
Security Fix(es):
* openssl: side-channel weak encryption vulnerability (CVE-2019-1547)
* httpd: memory corruption on early pushes (CVE-2019-10081)
* httpd: read-after-free in h2 connection shutdown (CVE-2019-10082)
* httpd: null-pointer dereference in mod_remoteip (CVE-2019-10097)
* openssl: information disclosure in fork() (CVE-2019-1549)
* openssl: information disclosure in PKCS7_dataDecode and CMS_decrypt_set1_pkey (CVE-2019-1563)
* httpd: limited cross-site scripting in mod_proxy error page (CVE-2019-10092)
* httpd: mod_rewrite potential open redirect (CVE-2019-10098)
* httpd: mod_rewrite configurations vulnerable to open redirect(CVE-2020-1927)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
Normally in OpenSSL EC groups always have a co-factor present and this is used in side channel resistant code paths. However, in some cases, it is possible to construct a group using explicit parameters (instead of using a named curve). In those cases it is possible that such a group does not have the cofactor present. This can occur even where all the parameters match a known named curve. If such a curve is used then OpenSSL falls back to non-side channel resistant code paths which may result in full key recovery during an ECDSA signature operation. In order to be vulnerable an attacker would have to have the ability to time the creation of a large number of signatures where explicit parameters with no co-factor present are in use by an application using libcrypto. For the avoidance of doubt libssl is not vulnerable because explicit parameters are never used. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s).
5.5 (Medium)
Vendor Fix
The References section of this erratum contains a download link (you must log in to download the update).
Before applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).
https://access.redhat.com/errata/RHSA-2020:1336
OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c).
4.8 (Medium)
Vendor Fix
The References section of this erratum contains a download link (you must log in to download the update).
Before applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).
https://access.redhat.com/errata/RHSA-2020:1336
In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack. Applications are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s).
CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Vendor Fix
The References section of this erratum contains a download link (you must log in to download the update).
Before applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).
https://access.redhat.com/errata/RHSA-2020:1336
Workaround
This attack is carried out by sending a large number of messages to be decrypted by the victim. The attacker needs to receive a response from the victim if the decryption was successful or not. Therefore only if the user application compiled with openssl is designed above way, the attack will be viable.
Only CMS_decrypt and PKCS7_decrypt functions are affected. Applications compiled with openssl are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt.
A vulnerability was found in Apache httpd, in mod_http2. Under certain circumstances, HTTP/2 early pushes could lead to memory corruption, causing a server to crash.
5.3 (Medium)
Vendor Fix
The References section of this erratum contains a download link (you must log in to download the update).
Before applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).
https://access.redhat.com/errata/RHSA-2020:1336
Workaround
This flaw is only exploitable if Apache httpd is configured to respond to HTTP/2 requests, which is done by including "h2" or "h2c" in the "Protocols" list in a configuration file. The following command can be used to search for possible vulnerable configurations:
grep -R '^\s*Protocols\>.*\<h2\>' /etc/httpd/
See https://httpd.apache.org/docs/2.4/mod/mod_http2.html
A read-after-free vulnerability was discovered in Apache httpd, in mod_http2. A specially crafted http/2 client session could cause the server to read memory that was previously freed during connection shutdown, potentially leading to a crash.
6.5 (Medium)
Vendor Fix
The References section of this erratum contains a download link (you must log in to download the update).
Before applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).
https://access.redhat.com/errata/RHSA-2020:1336
Workaround
This flaw is only exploitable if Apache httpd is configured to respond to HTTP/2 requests, which is done by including "h2" or "h2c" in the "Protocols" list in a configuration file. The following command can be used to search for possible vulnerable configurations:
grep -R '^\s*Protocols\>.*\<h2\>' /etc/httpd/
See https://httpd.apache.org/docs/2.4/mod/mod_http2.html
A cross-site scripting vulnerability was found in Apache httpd, affecting the mod_proxy error page. Under certain circumstances, a crafted link could inject content into the HTML displayed in the error page, potentially leading to client-side exploitation.
4.7 (Medium)
Vendor Fix
The References section of this erratum contains a download link (you must log in to download the update).
Before applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).
https://access.redhat.com/errata/RHSA-2020:1336
Workaround
This flaw is only exploitable if Proxy* directives are used in Apache httpd configuration. The following command can be used to search for possible vulnerable configurations:
grep -R '^\s*Proxy' /etc/httpd/
See https://httpd.apache.org/docs/2.4/mod/mod_proxy.html
A vulnerability was discovered in Apache httpd, in mod_remoteip. A trusted proxy using the "PROXY" protocol could send specially crafted headers that can cause httpd to experience a stack buffer overflow or NULL pointer dereference, leading to a crash or other potential consequences. This issue could only be exploited by configured trusted intermediate proxy servers. HTTP clients such as browsers could not exploit the vulnerability.
6.6 (Medium)
Vendor Fix
The References section of this erratum contains a download link (you must log in to download the update).
Before applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).
https://access.redhat.com/errata/RHSA-2020:1336
Workaround
This flaw is only exploitable if RemoteIP* directives are used in Apache httpd configuration. The following command can be used to search for possible vulnerable configurations:
grep -R '^\s*RemoteIP' /etc/httpd/
See https://httpd.apache.org/docs/2.4/mod/mod_remoteip.html
A vulnerability was discovered in Apache httpd, in mod_rewrite. Certain self-referential mod_rewrite rules could be fooled by encoded newlines, causing them to redirect to an unexpected location. An attacker could abuse this flaw in a phishing attack or as part of a client-side attack on browsers.
Vendor Fix
The References section of this erratum contains a download link (you must log in to download the update).
Before applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).
https://access.redhat.com/errata/RHSA-2020:1336
Workaround
This flaw requires the use of certain Rewrite configuration directives. The following command can be used to search for possible vulnerable configurations:
grep -R '^\s*Rewrite' /etc/httpd/
See https://httpd.apache.org/docs/2.4/mod/mod_rewrite.html
A flaw was found in Apache HTTP Server (httpd) versions 2.4.0 to 2.4.41. Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirected instead to an unexpected URL within the request URL.
6.1 (Medium)
Vendor Fix
The References section of this erratum contains a download link (you must log in to download the update).
Before applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).
https://access.redhat.com/errata/RHSA-2020:1336
References
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"name": "Exposure of Sensitive Information to an Unauthorized Actor"
},
"discovery_date": "2019-09-11T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1752100"
}
],
"notes": [
{
"category": "description",
"text": "In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted with the public RSA key, using a Bleichenbacher padding oracle attack. Applications are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c). Fixed in OpenSSL 1.1.0l (Affected 1.1.0-1.1.0k). Fixed in OpenSSL 1.0.2t (Affected 1.0.2-1.0.2s).",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "openssl: information disclosure in PKCS7_dataDecode and CMS_decrypt_set1_pkey",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-1563"
},
{
"category": "external",
"summary": "RHBZ#1752100",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1752100"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-1563",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-1563"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-1563",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-1563"
}
],
"release_date": "2019-09-10T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-04-06T19:09:57+00:00",
"details": "The References section of this erratum contains a download link (you must log in to download the update).\n\nBefore applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).",
"product_ids": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2020:1336"
},
{
"category": "workaround",
"details": "This attack is carried out by sending a large number of messages to be decrypted by the victim. The attacker needs to receive a response from the victim if the decryption was successful or not. Therefore only if the user application compiled with openssl is designed above way, the attack will be viable.\nOnly CMS_decrypt and PKCS7_decrypt functions are affected. Applications compiled with openssl are not affected if they use a certificate together with the private RSA key to the CMS_decrypt or PKCS7_decrypt functions to select the correct recipient info to decrypt.",
"product_ids": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.7,
"baseSeverity": "LOW",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.0"
},
"products": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
}
],
"threats": [
{
"category": "impact",
"details": "Low"
}
],
"title": "openssl: information disclosure in PKCS7_dataDecode and CMS_decrypt_set1_pkey"
},
{
"cve": "CVE-2019-10081",
"cwe": {
"id": "CWE-400",
"name": "Uncontrolled Resource Consumption"
},
"discovery_date": "2019-08-20T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1743966"
}
],
"notes": [
{
"category": "description",
"text": "A vulnerability was found in Apache httpd, in mod_http2. Under certain circumstances, HTTP/2 early pushes could lead to memory corruption, causing a server to crash.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "httpd: memory corruption on early pushes",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-10081"
},
{
"category": "external",
"summary": "RHBZ#1743966",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1743966"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-10081",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-10081"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-10081",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10081"
},
{
"category": "external",
"summary": "https://httpd.apache.org/security/vulnerabilities_24.html",
"url": "https://httpd.apache.org/security/vulnerabilities_24.html"
}
],
"release_date": "2019-08-14T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-04-06T19:09:57+00:00",
"details": "The References section of this erratum contains a download link (you must log in to download the update).\n\nBefore applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).",
"product_ids": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2020:1336"
},
{
"category": "workaround",
"details": "This flaw is only exploitable if Apache httpd is configured to respond to HTTP/2 requests, which is done by including \"h2\" or \"h2c\" in the \"Protocols\" list in a configuration file. The following command can be used to search for possible vulnerable configurations: \n\n grep -R \u0027^\\s*Protocols\\\u003e.*\\\u003ch2\\\u003e\u0027 /etc/httpd/\n\nSee https://httpd.apache.org/docs/2.4/mod/mod_http2.html",
"product_ids": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.0"
},
"products": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "httpd: memory corruption on early pushes"
},
{
"cve": "CVE-2019-10082",
"discovery_date": "2019-08-20T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1743974"
}
],
"notes": [
{
"category": "description",
"text": "A read-after-free vulnerability was discovered in Apache httpd, in mod_http2. A specially crafted http/2 client session could cause the server to read memory that was previously freed during connection shutdown, potentially leading to a crash.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "httpd: read-after-free in h2 connection shutdown",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-10082"
},
{
"category": "external",
"summary": "RHBZ#1743974",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1743974"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-10082",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-10082"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-10082",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10082"
},
{
"category": "external",
"summary": "https://httpd.apache.org/security/vulnerabilities_24.html",
"url": "https://httpd.apache.org/security/vulnerabilities_24.html"
}
],
"release_date": "2019-08-14T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-04-06T19:09:57+00:00",
"details": "The References section of this erratum contains a download link (you must log in to download the update).\n\nBefore applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).",
"product_ids": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2020:1336"
},
{
"category": "workaround",
"details": "This flaw is only exploitable if Apache httpd is configured to respond to HTTP/2 requests, which is done by including \"h2\" or \"h2c\" in the \"Protocols\" list in a configuration file. The following command can be used to search for possible vulnerable configurations: \n\n grep -R \u0027^\\s*Protocols\\\u003e.*\\\u003ch2\\\u003e\u0027 /etc/httpd/\n\nSee https://httpd.apache.org/docs/2.4/mod/mod_http2.html",
"product_ids": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L",
"version": "3.0"
},
"products": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "httpd: read-after-free in h2 connection shutdown"
},
{
"cve": "CVE-2019-10092",
"cwe": {
"id": "CWE-79",
"name": "Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)"
},
"discovery_date": "2019-08-20T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1743956"
}
],
"notes": [
{
"category": "description",
"text": "A cross-site scripting vulnerability was found in Apache httpd, affecting the mod_proxy error page. Under certain circumstances, a crafted link could inject content into the HTML displayed in the error page, potentially leading to client-side exploitation.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "httpd: limited cross-site scripting in mod_proxy error page",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-10092"
},
{
"category": "external",
"summary": "RHBZ#1743956",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1743956"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-10092",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-10092"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-10092",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10092"
},
{
"category": "external",
"summary": "https://httpd.apache.org/security/vulnerabilities_24.html",
"url": "https://httpd.apache.org/security/vulnerabilities_24.html"
}
],
"release_date": "2019-08-14T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-04-06T19:09:57+00:00",
"details": "The References section of this erratum contains a download link (you must log in to download the update).\n\nBefore applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).",
"product_ids": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2020:1336"
},
{
"category": "workaround",
"details": "This flaw is only exploitable if Proxy* directives are used in Apache httpd configuration. The following command can be used to search for possible vulnerable configurations:\n\n grep -R \u0027^\\s*Proxy\u0027 /etc/httpd/\n\nSee https://httpd.apache.org/docs/2.4/mod/mod_proxy.html",
"product_ids": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.0"
},
"products": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
}
],
"threats": [
{
"category": "impact",
"details": "Low"
}
],
"title": "httpd: limited cross-site scripting in mod_proxy error page"
},
{
"cve": "CVE-2019-10097",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2019-08-20T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1743996"
}
],
"notes": [
{
"category": "description",
"text": "A vulnerability was discovered in Apache httpd, in mod_remoteip. A trusted proxy using the \"PROXY\" protocol could send specially crafted headers that can cause httpd to experience a stack buffer overflow or NULL pointer dereference, leading to a crash or other potential consequences.\r\n\r\nThis issue could only be exploited by configured trusted intermediate proxy servers. HTTP clients such as browsers could not exploit the vulnerability.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "httpd: null-pointer dereference in mod_remoteip",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-10097"
},
{
"category": "external",
"summary": "RHBZ#1743996",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1743996"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-10097",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-10097"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-10097",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10097"
},
{
"category": "external",
"summary": "https://httpd.apache.org/security/vulnerabilities_24.html",
"url": "https://httpd.apache.org/security/vulnerabilities_24.html"
}
],
"release_date": "2019-08-14T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-04-06T19:09:57+00:00",
"details": "The References section of this erratum contains a download link (you must log in to download the update).\n\nBefore applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).",
"product_ids": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2020:1336"
},
{
"category": "workaround",
"details": "This flaw is only exploitable if RemoteIP* directives are used in Apache httpd configuration. The following command can be used to search for possible vulnerable configurations:\n\n grep -R \u0027^\\s*RemoteIP\u0027 /etc/httpd/\n\nSee https://httpd.apache.org/docs/2.4/mod/mod_remoteip.html",
"product_ids": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.6,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"products": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "httpd: null-pointer dereference in mod_remoteip"
},
{
"cve": "CVE-2019-10098",
"discovery_date": "2019-08-20T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1743959"
}
],
"notes": [
{
"category": "description",
"text": "A vulnerability was discovered in Apache httpd, in mod_rewrite. Certain self-referential mod_rewrite rules could be fooled by encoded newlines, causing them to redirect to an unexpected location. An attacker could abuse this flaw in a phishing attack or as part of a client-side attack on browsers.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "httpd: mod_rewrite potential open redirect",
"title": "Vulnerability summary"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2019-10098"
},
{
"category": "external",
"summary": "RHBZ#1743959",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1743959"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2019-10098",
"url": "https://www.cve.org/CVERecord?id=CVE-2019-10098"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2019-10098",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10098"
},
{
"category": "external",
"summary": "https://httpd.apache.org/security/vulnerabilities_24.html",
"url": "https://httpd.apache.org/security/vulnerabilities_24.html"
}
],
"release_date": "2019-08-14T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-04-06T19:09:57+00:00",
"details": "The References section of this erratum contains a download link (you must log in to download the update).\n\nBefore applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).",
"product_ids": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2020:1336"
},
{
"category": "workaround",
"details": "This flaw requires the use of certain Rewrite configuration directives. The following command can be used to search for possible vulnerable configurations:\n\n grep -R \u0027^\\s*Rewrite\u0027 /etc/httpd/\n\nSee https://httpd.apache.org/docs/2.4/mod/mod_rewrite.html",
"product_ids": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 3.7,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
"version": "3.0"
},
"products": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
}
],
"threats": [
{
"category": "impact",
"details": "Low"
}
],
"title": "httpd: mod_rewrite potential open redirect"
},
{
"cve": "CVE-2020-1927",
"cwe": {
"id": "CWE-601",
"name": "URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)"
},
"discovery_date": "2020-04-01T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "1820761"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in Apache HTTP Server (httpd) versions 2.4.0 to 2.4.41. Redirects configured with mod_rewrite that were intended to be self-referential might be fooled by encoded newlines and redirected instead to an unexpected URL within the request URL.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "httpd: mod_rewrite configurations vulnerable to open redirect",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This issue only affects httpd versions between 2.4.0 and 2.4.41. Therefore Red Hat Enterprise Linux 5 and 6 are not affected by this flaw.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2020-1927"
},
{
"category": "external",
"summary": "RHBZ#1820761",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1820761"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2020-1927",
"url": "https://www.cve.org/CVERecord?id=CVE-2020-1927"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-1927",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-1927"
},
{
"category": "external",
"summary": "https://httpd.apache.org/security/vulnerabilities_24.html",
"url": "https://httpd.apache.org/security/vulnerabilities_24.html"
}
],
"release_date": "2020-04-01T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2020-04-06T19:09:57+00:00",
"details": "The References section of this erratum contains a download link (you must log in to download the update).\n\nBefore applying the update, back up your existing Red Hat JBoss Core Services installation (including all applications and configuration files).",
"product_ids": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2020:1336"
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"products": [
"JBoss Core Services Apache HTTP Server 2.4.37 SP2"
]
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "httpd: mod_rewrite configurations vulnerable to open redirect"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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