CVE-2021-3541

CWE-776 — XML Entity Expansion (Billion Laughs)CWE-400 — Uncontrolled Resource Consumption8 documents8 sources
Severity
6.5MEDIUM
EPSS
0.1%
top 81.13%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Xmlsoft Libxml2Oracle ZFS Storage Appliance KIT
Timeline
PublishedJul 9
Latest updateMay 24

Description

A flaw was found in libxml2. Exponential entity expansion attack its possible bypassing all existing protection mechanisms and leading to denial of service.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages4 packages

▶NVDxmlsoft/libxml2< 2.9.11
▶Debianlibxml2< 2.9.10+dfsg-6.7+3
▶CVEListV5libxml22.9.11

Patches

Patch: bugzilla.redhat.com ↗Patch: www.oracle.com ↗Patch: bugzilla.redhat.com ↗

🔴Vulnerability Details

4
GHSA
GHSA-wcgr-63g6-pj93: A flaw was found in libxml2↗2022-05-24
▶
OSV
CVE-2021-3541: A flaw was found in libxml2↗2021-07-09
▶
CVEList
CVE-2021-3541: A flaw was found in libxml2↗2021-07-09
▶
GHSA
Nokogiri updates packaged dependency on libxml2 from 2.9.10 to 2.9.12↗2021-05-17
▶

📋Vendor Advisories

3
Ubuntu
libxml2 vulnerabilities↗2021-06-17
▶
Red Hat
libxml2: Exponential entity expansion attack bypasses all existing protection mechanisms↗2021-05-13
▶
Debian
CVE-2021-3541: libxml2 - A flaw was found in libxml2. Exponential entity expansion attack its possible by...↗2021
▶