Home/CVE/Insufficient exception handling in the method NCompress::NRar3::CDecoder::Code of 7-Zip before 18.00 and p7zip can lead
CVE

CVE-2018-5996

Insufficient exception handling in the method NCompress::NRar3::CDecoder::Code of 7-Zip before 18.00 and p7zip can lead

Insufficient exception handling in the method NCompress::NRar3::CDecoder::Code of 7-Zip before 18.00 and p7zip can lead to multiple memory corruptions within the PPMd code, allows remote attackers to cause a denial of service (segmentation fault) or execute arbitrary code via a crafted RAR archive.

HIGH · CVSS 7.8 EPSS 0.04295
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules1 YARA rules0
⬡

Weakness Classification

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
▤

Affected Products & Versions

3
7-zip< 18.00
7-zip p7zip< 18.0
debian linuxall versions
⚠

Public Exploits & PoCs

1
poclandave.io · 7-zip-multiple-memory-corruptions-via-rar-and-ziplandave.io
◈

Sigma Hunt Rules

1
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
productmediumCompress Data and Lock With Password for Exfiltration With 7-ZIP
▣

Scoring & Timeline

7.8
HIGH · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD31 Jan 2018 · 06:29 PM
CVSS VectorCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

2
msrcCVE-2018-5996
suse-csafSUSE-SU-2018:0464-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securitytracker.com/id/1040831
https://0patch.blogspot.si/2018/02/two-interesting-micropatches-for-7-zip.html
https://github.com/p7zip-project/p7zip/issues/32
https://github.com/p7zip-project/p7zip/issues/8
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