Integer overflow in Busybox
CVE-2017-15873
The get_next_block function in archival/libarchive/decompress_bunzip2.c in BusyBox 1.27.2 has an Integer Overflow that may lead to a write access violation.
Vulnerability class: Integer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.013 (69.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 69.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000
Affected products
- Busybox — versions 1.27.2
- Canonical Ubuntu Linux — versions 14.04, 16.04, 18.04
- Debian Linux — versions 8.0, 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- git.busybox.net/busybox/commit/ (Patch, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2018/07/msg00037.html (mailing-list, Mailing List, Third Party Advisory)
- bugs.busybox.net/show_bug.cgi (Exploit, Third Party Advisory, Issue Tracking)
- usn.ubuntu.com/3935-1/ (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/02/msg00020.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-15873?
- CVE-2017-15873 is a medium-severity vulnerability in Busybox, classified under Integer Overflow or Wraparound. CVSS score: 5.5/10. Published 2017-10-24.
- How severe is CVE-2017-15873?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2017-15873 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.