In Memcached before 1.6.22, a buffer overflow exists when processing multiget requests in proxy mode, if there are many spaces after the "get" substring.

An update of the memcached package has been released.

The remote NewStart CGSL host, running version MAIN 7.02, has memcached packages installed that are affected by multiple vulnerabilities:

  - In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \n     is used instead of \r\n. (CVE-2023-46853)

  - In Memcached before 1.6.22, a buffer overflow exists when processing multiget requests in proxy mode, if     there are many spaces after the get substring. (CVE-2023-46852)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2024:0064 advisory.

    Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:

    CVE-2023-46852:
    In Memcached before 1.6.22, a buffer overflow exists when processing multiget requests in proxy mode, if     there are many spaces after the get substring.

    CVE-2023-46853:
    In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if n     is used instead of rn.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In Memcached before 1.6.22, a buffer overflow exists when processing multiget requests in proxy mode, if     there are many spaces after the get substring. (CVE-2023-46852)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of memcached installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-46852 advisory.

  - In Memcached before 1.6.22, a buffer overflow exists when processing multiget requests in proxy mode, if     there are many spaces after the get substring. (CVE-2023-46852)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2023-449 advisory.

    In Memcached before 1.6.22, a buffer overflow exists when processing multiget requests in proxy mode, if     there are many spaces after the get substring. (CVE-2023-46852)

    In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \n     is used instead of \r\n. (CVE-2023-46853)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 22.04 LTS / 23.04 / 23.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-6476-1 advisory.

    It was discovered that Memcached incorrectly handled certain multiget requests in proxy mode. A remote     attacker could use this issue to cause Memcached to crash, resulting in a denial of service, or possibly     execute arbitrary code. (CVE-2023-46852)

    It was discovered that Memcached incorrectly handled certain proxy requests in proxy mode. A remote     attacker could use this issue to cause Memcached to crash, resulting in a denial of service, or possibly     execute arbitrary code. (CVE-2023-46853)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
332474	Photon OS 5.0: Memcached PHSA-2023-5.0-91-0140	Nessus	PhotonOS Local Security Checks	Local	critical
242734	NewStart CGSL MAIN 7.02 : memcached Multiple Vulnerabilities (NS-SA-2025-0155)	Nessus	NewStart CGSL Local Security Checks	Local	critical
239855	TencentOS Server 4: memcached (TSSA-2024:0064)	Nessus	Tencent Local Security Checks	Local	critical
226692	Linux Distros Unpatched Vulnerability : CVE-2023-46852	Nessus	Misc.	Local	high
204301	Photon OS 4.0: Memcached PHSA-2023-4.0-0509	Nessus	PhotonOS Local Security Checks	Local	critical
203727	Photon OS 3.0: Memcached PHSA-2023-3.0-0685	Nessus	PhotonOS Local Security Checks	Local	critical
203535	Photon OS 5.0: Memcached PHSA-2023-5.0-0140	Nessus	PhotonOS Local Security Checks	Local	critical
201620	CBL Mariner 2.0 Security Update: memcached (CVE-2023-46852)	Nessus	MarinerOS Local Security Checks	Local	high
186970	Amazon Linux 2023 : memcached, memcached-devel, memcached-selinux (ALAS2023-2023-449)	Nessus	Amazon Linux Local Security Checks	Local	critical
185503	Ubuntu 22.04 LTS / 23.04 / 23.10 : Memcached vulnerabilities (USN-6476-1)	Nessus	Ubuntu Local Security Checks	Local	critical

Detections

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CVE-2023-46852

high

Tenable Plugins

critical

critical

critical

high

critical

critical

critical

high

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critical