PT-2021-7823 · Xmill · Xmill

Carl Hurd · Published 2021-08-10 · Updated 2022-10-06 · CVE-2021-21813

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Xmill (affected versions not specified)

Description The issue is related to a memory boundary error in the HandleFileArg function of the Xmill XML compression tool when processing an XML file. This can be exploited by a local attacker to execute arbitrary code. The filepattern argument, which is under the control of the user and passed from the command line, is copied directly to a statically sized buffer using memcpy without any length checks, resulting in a stack-buffer overflow.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2023-03277

CVE-2021-21813

Affected Products

Xmill

References · 8

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2021-1280 · Exploit
• https://osv.dev/vulnerability/CVE-2021-21813 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-21813 · Security Note
• https://safe-surf.ru/upload/VULN/VULN-20210813.1.pdf · Security Note
• https://bdu.fstec.ru/vul/2023-03277 · Security Note
• https://vuldb.com/?id.180877 · Note
• https://se.com/ww/en/download/document/SEVD-2021-222-02 · Note
• https://t.me/cvenotify/19939 · Telegram Post