Integer overflow in Zchunk
CVE-2023-46228
zchunk before 1.3.2 has multiple integer overflows via malformed zchunk files to lib/comp/comp.c, lib/comp/zstd/zstd.c, lib/dl/multipart.c, or lib/header.c.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (16.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/zchunk/zchunk/commit/08aec2b4dfd7f709b6e3d511411ffcc83ed4efbe (Patch)
- bugzilla.suse.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- github.com/zchunk/zchunk/compare/1.3.1...1.3.2 (Patch)
Frequently asked questions
- What is CVE-2023-46228?
- CVE-2023-46228 is a high-severity vulnerability in Zchunk, classified under Integer Overflow or Wraparound. CVSS score: 7.8/10. Published 2023-10-19.
- How severe is CVE-2023-46228?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2023-46228 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.