Vulnerability-Lookup

RHSA-2020_5583

Vulnerability from csaf_redhat - Published: 2020-12-16 13:57 - Updated: 2024-11-15 03:25

Summary

Red Hat Security Advisory: memcached security update

Severity

Moderate

Notes

Topic: An update for memcached is now available for Red Hat OpenStack Platform 13 (Queens). 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: memcached is a high-performance, distributed memory object caching system, generic in nature, but intended for use in speeding up dynamic web applications by alleviating database load. Security Fix(es): * null-pointer dereference in "lru mode" and "lru temp_ttl" causing denial of service (CVE-2019-11596) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page 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.

CVE-2019-11596

In memcached before 1.5.14, a NULL pointer dereference was found in the "lru mode" and "lru temp_ttl" commands. This causes a denial of service when parsing crafted lru command messages in process_lru_command in memcached.c.

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-476 - NULL Pointer Dereference

Vendor Fix For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 https://access.redhat.com/errata/RHSA-2020:5583

References

URL

Category

	https://access.redhat.com/errata/RHSA-2020:5583	self
	https://access.redhat.com/security/updates/classi…	external
	https://bugzilla.redhat.com/show_bug.cgi?id=1706001	external
	https://security.access.redhat.com/data/csaf/v2/a…	self
	https://access.redhat.com/security/cve/CVE-2019-11596	self
	https://bugzilla.redhat.com/show_bug.cgi?id=1706001	external
	https://www.cve.org/CVERecord?id=CVE-2019-11596	external
	https://nvd.nist.gov/vuln/detail/CVE-2019-11596	external

JSON

To clipboard

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          "title": "Vulnerability description"
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          "text": "memcached: null-pointer dereference in \"lru mode\" and \"lru temp_ttl\" causing denial of service",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "The vulnerable code is not present in the versions of memcached as shipped in Red Hat Enterprise Linux 6 and 7, so they 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"
        }
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      "scores": [
        {
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "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:H",
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "memcached: null-pointer dereference in \"lru mode\" and \"lru temp_ttl\" causing denial of service"
    }
  ]
}

CVE-2019-11596 (GCVE-0-2019-11596)

Vulnerability from cvelistv5 – Published: 2019-04-29 14:46 – Updated: 2024-08-04 22:55

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/memcached/memcached/issues/474	x_refsource_MISC
	https://github.com/memcached/memcached/commit/d35…	x_refsource_MISC
	https://github.com/memcached/memcached/compare/ee…	x_refsource_MISC
	https://usn.ubuntu.com/3963-1/	vendor-advisoryx_refsource_UBUNTU
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
	http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Show details on NVD website

JSON

To clipboard

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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.

Detection rules are retrieved from Rulezet.

Action not permitted

RHSA-2020_5583

CVE-2019-11596 (GCVE-0-2019-11596)

Tags

Sightings

Nomenclature