QID 671098

Date Published: 2021-11-29

QID 671098: EulerOS Security Update for memcached (EulerOS-SA-2019-2213)

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): memcached version 1.5.5 contains an insufficient control of network message volume (network amplification, cwe-406) vulnerability in the udp support of the memcached server that can result in denial of service via network flood (traffic amplification of 1:50,000 has been reported by reliable sources).
This attack appear to be exploitable via network connectivity to port 11211 udp.
This vulnerability appears to have been fixed in 1.5.6 due to the disabling of the udp protocol by default.(cve-2018-1000115) the try_read_command function in memcached.c in memcached before 1.4.39 allows remote attackers to cause a denial of service (segmentation fault) via a request to add/set a key, which makes a comparison between signed and unsigned int and triggers a heap-based buffer over-read.
Note: this vulnerability exists because of an incomplete fix for cve-2016-8705.(cve-2017-9951)

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

An arbitrary attacker may exploit this vulnerability to compromise the system.

  • CVSS V3 rated as High - 7.5 severity.
  • CVSS V2 rated as Medium - 5 severity.
    • Solution
    The Vendor has released a security update to fix the vulnerability. For more information please visit EulerOS-SA-2019-2213 for updates and patch information
    Vendor References

    CVEs related to QID 671098

    CVE-2018-1000115 | CVE-2017-9951 |
    Software Advisories
    Advisory ID Software Component Link
    EulerOS-SA-2019-2213 EulerOS V2.0SP5 URL Logo developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-2213
    By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].