CVE-2023-31102 - Integer Underflow (Wrap or Wraparound)

Severity

78%

Complexity

18%

Confidentiality

98%

7-Zip through 22.01 on Linux allows an integer underflow and code execution via a crafted 7Z archive.

Ppmd7.c in 7-Zip before 23.00 allows an integer underflow and invalid read operation via a crafted 7Z archive.

CVSS 3.1 Base Score 7.8. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H).

Demo Examples

Integer Underflow (Wrap or Wraparound)

CWE-191

The following example subtracts from a 32 bit signed integer.


               
}
return 0;

The example has an integer underflow. The value of i is already at the lowest negative value possible, so after subtracting 1, the new value of i is 2147483647.

Overview

First reported 1 year ago

2023-11-03 04:15:00

Last updated 1 year ago

2023-11-20 00:15:00

Affected Software

NetApp Active IQ Unified Manager for Windows

windows

References

https://sourceforge.net/p/sevenzip/discussion/45797/thread/713c8a8269/

https://www.7-zip.org/download.html

https://www.zerodayinitiative.com/advisories/ZDI-23-1165/

https://security.netapp.com/advisory/ntap-20231110-0007/

https://sourceforge.net/p/sevenzip/discussion/45797/thread/713c8a8269/

Issue Tracking, Release Notes

https://www.7-zip.org/download.html

Product

https://www.zerodayinitiative.com/advisories/ZDI-23-1165/

Third Party Advisory, VDB Entry

https://security.netapp.com/advisory/ntap-20231110-0007/

Third Party Advisory

https://ds-security.com/post/integer-overflow-in-7-zip-cve-2023-31102/

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