CVE-2021-32626

EUVD-2021-19457
Redis is an open source, in-memory database that persists on disk. In affected versions specially crafted Lua scripts executing in Redis can cause the heap-based Lua stack to be overflowed, due to incomplete checks for this condition. This can result with heap corruption and potentially remote code execution. This problem exists in all versions of Redis with Lua scripting support, starting from 2.6. The problem is fixed in versions 6.2.6, 6.0.16 and 5.0.14. For users unable to update an additional workaround to mitigate the problem without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to restrict EVAL and EVALSHA commands.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.5 HIGH
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
GitHub_MCNA
7.5 HIGH
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 79%
Affected Products (NVD)
VendorProductVersion
redisredis
2.6 ≤
𝑥
< 5.0.14
redisredis
6.0.0 ≤
𝑥
< 6.0.16
redisredis
6.2.0 ≤
𝑥
< 6.2.6
netappmanagement_services_for_element_software
-
netappmanagement_services_for_netapp_hci
-
debiandebian_linux
10.0
debiandebian_linux
11.0
oraclecommunications_operations_monitor
4.3
oraclecommunications_operations_monitor
4.4
oraclecommunications_operations_monitor
5.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
redis
bookworm
5:7.0.15-1~deb12u1
fixed
bookworm (security)
5:7.0.15-1~deb12u1
fixed
bullseye
5:6.0.16-1+deb11u2
fixed
bullseye (security)
5:6.0.16-1+deb11u3
fixed
sid
5:7.0.15-2
fixed
trixie
5:7.0.15-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
redis
bionic
Fixed 5:4.0.9-1ubuntu0.2+esm3
released
focal
Fixed 5:5.0.7-2ubuntu0.1+esm1
released
hirsute
ignored
impish
ignored
jammy
not-affected
kinetic
not-affected
lunar
not-affected
mantic
not-affected
noble
not-affected
trusty
Fixed 2:2.8.4-2ubuntu0.2+esm2
released
xenial
Fixed 2:3.0.6-1ubuntu0.4+esm1
released
References