CVE-2018-5996: 7-zip

Vulnerability summary

CVE-2018-5996 is a high (CVSS 7.8) vulnerability in 7-zip. EPSS estimates a 2.88% chance of exploitation in the next 30 days, higher than 86.7% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 31-01-2018
   PublishedVulnerability first disclosed.
2. 10-01-2025
   Last modifiedVulnerability information updated.

Description

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.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.