CVE-2017-9951 Memory corruption in n/a

What is CVE-2017-9951?

CVE-2017-9951 is a high-severity memory corruption vulnerability in n/a, published on 17 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Which versions are affected by CVE-2017-9951?

It affects 1 product.

Products include Memcached Memcached.

How do I fix CVE-2017-9951?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2017-9951 being exploited?

There is no known exploitation of CVE-2017-9951 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2023-46853 Memory corruption in n/a Critical 9.8
• CVE-2016-8704 Integer overflow in Memcached Critical 9.8
• CVE-2016-8705 Integer overflow in Memcached Critical 9.8
• CVE-2026-47783 Information disclosure in memcached High 8.1
• CVE-2026-47784 Information disclosure in memcached High 8.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2017-9951, DEBIAN-CVE-2017-9951, DLA-1033-1, GHSA-vpcm-5gwm-79h2, MGASA-2017-0441, SUSE-SU-2018:0839-1 and 1 more.