CVE-2017-15873: busybox Integer Overflow or Wraparound
CVSS: 5.5v3.1MediumModified
AliasesALPINE-CVE-2017-15873UBUNTU-CVE-2017-15873DEBIAN-CVE-2017-15873
Published 24-10-2017Last modified 09-06-2025
Vulnerability summary
CVE-2017-15873 is a medium (CVSS 5.5) Integer Overflow or Wraparound vulnerability in busybox. EPSS estimates a 1.32% chance of exploitation in the next 30 days, higher than 70.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)EPSS score
1.32%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 9 · Related 7Timeline
- 24-10-2017PublishedVulnerability first disclosed.
- 09-06-2025Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
7 scores · 5 sources · 3 versionsMedium 5.5Preferred score · CVE.org (CNA)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 5 agree
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · AlpineEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 5.5Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesSingle source
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
1.32%
Chance of exploitation in the next 30 days
Percentile
70%
Versus all other CVEs
30-day change
0.00 pp
From 1.32% on 18-09-2026
18-09-202618-10-2026
EPSS score1.32%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugs.busybox.net)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian2 products
- busybox< 1:1.27.2-2
- debian_linuxEOL8.0 | 9.0
Alpine1 product
- busybox< 1.27.2-r4 | < 1.24.2-r2 | < 1.24.2-r13 | < 1.25.1-r1 | < 1.26.2-r9
Busybox1 product
- busybox1.27.2
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 18.04 | 18.10
Ubuntu1 product
- busybox< 1:1.21.0-1ubuntu1.4 | < 1:1.22.0-15ubuntu1.4 | < 1:1.27.2-1ubuntu4
5 vendors · 6 products
References
10 links- git.busybox.net/busybox/commit/?id=0402cb32df015d9372578e3db27db47b33d5c7b0X Refsource MISCIssue TrackingPatchThird Party Advisory
lists.debian.org/debian-lts-announce/2018/07/msg00037.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.debian.org/debian-lts-announce/2021/02/msg00020.htmlMailing ListX Refsource MLISTThird Party Advisory