SB2020052617 - OpenSUSE Linux update for memcached

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) NULL pointer dereference (CVE-ID: CVE-2019-11596)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dreference error in the "lru mode" and "lru temp_ttl" commands when parsing specially crafted lru command messages passed passed to process_lru_command() function in memcached.c. A remote attacker can send a specially crafted HTTP request to the affected application and perform denial of service (DoS) attack.

Exploitation example:

echo -n "bHJ1IG1vZGUKb7G0AGxydWRl6gdtTk9UXw==" | base64 -d | nc 127.0.0.1 11211

2) Out-of-bounds read (CVE-ID: CVE-2019-15026)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to stack-based buffer over-read in conn_to_str() function in memcached.c. A remote attacker can perform a denial of service attack.

Remediation

Install update from vendor's website.

References

• https://lists.opensuse.org/opensuse-security-announce/2020-05/msg00060.html