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CVE-2017-17969

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Date: January 30, 2018

Heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method in 7-Zip before 18.00 and p7zip allows remote attackers to cause a denial of service (out-of-bounds write) or potentially execute arbitrary code via a crafted ZIP archive.

Severity Score

Related Resources (10)

http://www.securitytracker.com/id/1040831
https://0patch.blogspot.si/2018/02/two-interesting-micropatches-for-7-zip.html
https://security-tracker.debian.org/tracker/CVE-2017-17969
https://usn.ubuntu.com/3913-1/
https://www.debian.org/security/2018/dsa-4104
https://nvd.nist.gov/vuln/detail/CVE-2017-17969
https://people.canonical.com/~ubuntu-security/cve/CVE-2017-17969
https://lists.debian.org/debian-lts-announce/2018/02/msg00003.html
https://landave.io/2018/01/7-zip-multiple-memory-corruptions-via-rar-and-zip/
https://www.mend.io/vulnerability-database/CVE-2017-17969

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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