CVE-2021-3520

EUVD-2021-26836
There's a flaw in lz4. An attacker who submits a crafted file to an application linked with lz4 may be able to trigger an integer overflow, leading to calling of memmove() on a negative size argument, causing an out-of-bounds write and/or a crash. The greatest impact of this flaw is to availability, with some potential impact to confidentiality and integrity as well.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 35%
Affected Products (NVD)
VendorProductVersion
lz4_projectlz4
1.8.3 ≤
𝑥
< 1.9.4
netappactive_iq_unified_manager
-
netappcloud_backup
-
netappontap_select_deploy_administration_utility
-
oraclecommunications_cloud_native_core_policy
1.14.0
oraclezfs_storage_appliance_kit
8.8
splunkuniversal_forwarder
8.2.0 ≤
𝑥
< 8.2.12
splunkuniversal_forwarder
9.0.0 ≤
𝑥
< 9.0.6
splunkuniversal_forwarder
9.1.0
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
lz4
bookworm
1.9.4-1
fixed
bullseye
1.9.3-2
fixed
sid
1.9.4-3
fixed
trixie
1.9.4-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
lz4
bionic
Fixed 0.0~r131-2ubuntu3.1
released
focal
Fixed 1.9.2-2ubuntu0.20.04.1
released
groovy
Fixed 1.9.2-2ubuntu0.20.10.1
released
hirsute
Fixed 1.9.3-1ubuntu0.1
released
impish
not-affected
jammy
not-affected
trusty
Fixed 0.0~r114-2ubuntu1+esm2
released
xenial
Fixed 0.0~r131-2ubuntu2+esm1
released