Vulnerability-Lookup

alsa-2025:15023

Vulnerability from osv_almalinux

Published

2025-09-02 00:00

Modified

2025-09-29 09:03

Summary

Moderate: httpd security update

Details

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

Security Fix(es):

httpd: insufficient escaping of user-supplied data in mod_ssl (CVE-2024-47252)
httpd: mod_ssl: access control bypass by trusted clients is possible using TLS 1.3 session resumption (CVE-2025-23048)
httpd: HTTP Session Hijack via a TLS upgrade (CVE-2025-49812)

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.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "httpd"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
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            {
              "fixed": "2.4.62-4.el9_6.4"
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        }
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    },
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        "name": "mod_lua"
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  "details": "The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.  \n\nSecurity Fix(es):  \n\n  * httpd: insufficient escaping of user-supplied data in mod_ssl (CVE-2024-47252)\n  * httpd: mod_ssl: access control bypass by trusted clients is possible using TLS 1.3 session resumption (CVE-2025-23048)\n  * httpd: HTTP Session Hijack via a TLS upgrade (CVE-2025-49812)\n\n\nFor 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.\n",
  "id": "ALSA-2025:15023",
  "modified": "2025-09-29T09:03:21Z",
  "published": "2025-09-02T00:00:00Z",
  "references": [
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      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2025:15023"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2024-47252"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-23048"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2025-49812"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2374571"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2374576"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2374580"
    },
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    }
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    "CVE-2025-23048",
    "CVE-2025-49812"
  ],
  "summary": "Moderate: httpd security update"
}

CVE-2025-23048 (GCVE-0-2025-23048)

Vulnerability from cvelistv5 – Published: 2025-07-10 16:56 – Updated: 2026-02-26 17:50

Title

Apache HTTP Server: mod_ssl access control bypass with session resumption

Summary

In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption. Configurations are affected when mod_ssl is configured for multiple virtual hosts, with each restricted to a different set of trusted client certificates (for example with a different SSLCACertificateFile/Path setting). In such a case, a client trusted to access one virtual host may be able to access another virtual host, if SSLStrictSNIVHostCheck is not enabled in either virtual host.

Severity ?

No CVSS data available.

CWE

CWE-284 - Improper Access Control

Assigner

apache

References

URL

Tags

https://httpd.apache.org/security/vulnerabilities…

vendor-advisory

Impacted products

	Vendor	Product	Version
	Apache Software Foundation	Apache HTTP Server	Affected: 2.4.35 , ≤ 2.4.63 (semver)

Credits

Sven Hebrok, Felix Cramer, Tim Storm, Maximilian Radoy, and Juraj Somorovsky at Paderborn University

Show details on NVD website

JSON

To clipboard

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CVE-2024-47252 (GCVE-0-2024-47252)

Vulnerability from cvelistv5 – Published: 2025-07-10 16:55 – Updated: 2025-11-04 21:08

Title

Apache HTTP Server: mod_ssl error log variable escaping

Summary

Insufficient escaping of user-supplied data in mod_ssl in Apache HTTP Server 2.4.63 and earlier allows an untrusted SSL/TLS client to insert escape characters into log files in some configurations. In a logging configuration where CustomLog is used with "%{varname}x" or "%{varname}c" to log variables provided by mod_ssl such as SSL_TLS_SNI, no escaping is performed by either mod_log_config or mod_ssl and unsanitized data provided by the client may appear in log files.

Severity ?

No CVSS data available.

CWE

CWE-150 - Improper Neutralization of Escape, Meta, or Control Sequences

Assigner

apache

References

URL

Tags

https://httpd.apache.org/security/vulnerabilities…

vendor-advisory

Impacted products

	Vendor	Product	Version
	Apache Software Foundation	Apache HTTP Server	Affected: 2.4 , ≤ 2.4.63 (semver)

Credits

John Runyon

Show details on NVD website

JSON

To clipboard

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CVE-2025-49812 (GCVE-0-2025-49812)

Vulnerability from cvelistv5 – Published: 2025-07-10 16:58 – Updated: 2025-11-04 21:11

Title

Apache HTTP Server: mod_ssl TLS upgrade attack

Summary

In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade. Only configurations using "SSLEngine optional" to enable TLS upgrades are affected. Users are recommended to upgrade to version 2.4.64, which removes support for TLS upgrade.

Severity ?

No CVSS data available.

CWE

CWE-287 - Improper Authentication

Assigner

apache

References

URL

Tags

https://httpd.apache.org/security/vulnerabilities…

vendor-advisory

Impacted products

	Vendor	Product	Version
	Apache Software Foundation	Apache HTTP Server	Affected: 0 , ≤ 2.4.63 (semver)

Credits

Robert Merget (Technology Innovation Institute) Nurullah Erinola (Ruhr University Bochum) Marcel Maehren (Ruhr University Bochum) Lukas Knittel (Ruhr University Bochum) Sven Hebrok (Paderborn University) Marcus Brinkmann (Ruhr University Bochum) Juraj Somorovsky (Paderborn University) Jörg Schwenk (Ruhr University Bochum)

Show details on NVD website

JSON

To clipboard

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        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Apache HTTP Server",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThanOrEqual": "2.4.63",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Robert Merget (Technology Innovation Institute)"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Nurullah Erinola (Ruhr University Bochum)"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Marcel Maehren (Ruhr University Bochum)"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Lukas Knittel (Ruhr University Bochum)"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Sven Hebrok (Paderborn University)"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Marcus Brinkmann (Ruhr University Bochum)"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Juraj Somorovsky (Paderborn University)"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "J\u00f6rg Schwenk (Ruhr University Bochum)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade.\u003cbr\u003e\u003cbr\u003eOnly configurations using \"SSLEngine optional\" to enable TLS upgrades are affected. Users are recommended to upgrade to version 2.4.64, which removes support for TLS upgrade."
            }
          ],
          "value": "In some mod_ssl configurations on Apache HTTP Server versions through to 2.4.63, an HTTP desynchronisation attack allows a man-in-the-middle attacker to hijack an HTTP session via a TLS upgrade.\n\nOnly configurations using \"SSLEngine optional\" to enable TLS upgrades are affected. Users are recommended to upgrade to version 2.4.64, which removes support for TLS upgrade."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "text": "moderate"
            },
            "type": "Textual description of severity"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "CWE-287 Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-10T16:58:23.943Z",
        "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
        "shortName": "apache"
      },
      "references": [
        {
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://httpd.apache.org/security/vulnerabilities_24.html"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "timeline": [
        {
          "lang": "en",
          "time": "2025-04-22T07:26:00.000Z",
          "value": "Report received"
        },
        {
          "lang": "en",
          "time": "2025-07-07T00:00:00.000Z",
          "value": "2.4.x revision 1927045"
        }
      ],
      "title": "Apache HTTP Server: mod_ssl TLS upgrade attack",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
    "assignerShortName": "apache",
    "cveId": "CVE-2025-49812",
    "datePublished": "2025-07-10T16:58:23.943Z",
    "dateReserved": "2025-06-11T09:36:54.723Z",
    "dateUpdated": "2025-11-04T21:11:18.699Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Tags

Taxonomy of the tags.

All sightings related to this event Export sightings related to this event

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.

Detection rules are retrieved from Rulezet.

Action not permitted

alsa-2025:15023

Vulnerability from osv_almalinux

CVE-2025-23048 (GCVE-0-2025-23048)

CVE-2024-47252 (GCVE-0-2024-47252)

CVE-2025-49812 (GCVE-0-2025-49812)

Tags

Sightings

Nomenclature