CVE-2021-3520

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
NISTNIST
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
redhatCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 36%
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
bullseye
1.9.3-2
fixed
bookworm
1.9.4-1
fixed
sid
1.9.4-3
fixed
trixie
1.9.4-3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
lz4
jammy
not-affected
impish
not-affected
hirsute
Fixed 1.9.3-1ubuntu0.1
released
groovy
Fixed 1.9.2-2ubuntu0.20.10.1
released
focal
Fixed 1.9.2-2ubuntu0.20.04.1
released
bionic
Fixed 0.0~r131-2ubuntu3.1
released
xenial
Fixed 0.0~r131-2ubuntu2+esm1
released
trusty
Fixed 0.0~r114-2ubuntu1+esm2
released