| Name | CVE-2019-11596 | 
| Description | 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. | 
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) | 
| Debian Bugs | 928205 | 
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status | 
|---|
| memcached (PTS) | bullseye | 1.6.9+dfsg-1 | fixed | 
 | bookworm | 1.6.18-1 | fixed | 
 | trixie | 1.6.38-1 | fixed | 
 | forky, sid | 1.6.39-2 | fixed | 
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs | 
|---|
| memcached | source | jessie | (not affected) |  |  |  | 
| memcached | source | stretch | (not affected) |  |  |  | 
| memcached | source | (unstable) | 1.5.6-1.1 |  |  | 928205 | 
Notes
[stretch] - memcached <not-affected> (Vulnerable code introduced later)
[jessie] - memcached <not-affected> (Vulnerable code introduced later)
https://github.com/memcached/memcached/commit/d35334f368817a77a6bd1f33c6a5676b2c402c02
https://github.com/memcached/memcached/issues/474