Medium severity · published Oct 24, 2017
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
5.5
CVSS
1.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.3% · higher than 71% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BU
Busybox · Busybox
1.27.2 · source: NVD
DL
Debian Linux · Debian
8.0; 9.0 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 18.04; 18.10 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-15873
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-15873
Exploit
https://bugs.busybox.net/show_bug.cgi?id=10431
Issue Tracking
https://git.busybox.net/busybox/commit/?id=0402cb32df015d9372578e3db27db47b33d5c7b0
Mailing List
https://lists.debian.org/debian-lts-announce/2018/07/msg00037.html
Mailing List
https://lists.debian.org/debian-lts-announce/2021/02/msg00020.html
Third Party Advisory
https://usn.ubuntu.com/3935-1/
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