CVE-2021-21811 — Integer Underflow (Wrap or Wraparound) in Xmill

CWE-191 — Integer Underflow (Wrap or Wraparound)CWE-772 — Missing Release of Resource after Effective Lifetime3 documents3 sources
Severity
9.8CRITICALNVD
EPSS
0.6%
top 30.71%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
ATT Xmill
Timeline
PublishedAug 31
Latest updateMay 24

Description

A memory corruption vulnerability exists in the XML-parsing CreateLabelOrAttrib functionality of AT&T Labs’ Xmill 0.7. A specially crafted XML file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages1 packages

▶NVDatt/xmill0.7

🔴Vulnerability Details

2
GHSA
GHSA-fmqr-7vvj-9r72: A memory corruption vulnerability exists in the XML-parsing CreateLabelOrAttrib functionality of AT&T Labs’ Xmill 0↗2022-05-24
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CVEList
CVE-2021-21811: A memory corruption vulnerability exists in the XML-parsing CreateLabelOrAttrib functionality of AT&T Labs’ Xmill 0↗2021-08-31
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CVE-2021-21811 — Integer Underflow (Wrap or Wraparound) | cvebase