HOMEVULNERABILITIESCVE-2017-15056
HIGH

CVE-2017-15056

CWE-476Published: October 6, 2017· Updated: Jun 17, 2026

7.8
CVSS v3.1

Official Description

p_lx_elf.cpp in UPX 3.94 mishandles ELF headers, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted binary file, as demonstrated by an Invalid Pointer Read in PackLinuxElf64::unpack().

NVD Source

Technical Analysis

CVE-2017-15056 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected Vendors & Products

upx1 product(s)
upx
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

PATCHhttps://github.com/upx/upx/issues/128
PATCHhttps://github.com/upx/upx/issues/128

All References (2)

→
https://github.com/upx/upx/issues/128Issue Tracking · Patch · Third Party Advisory
→
https://github.com/upx/upx/issues/128Issue Tracking · Patch · Third Party Advisory

Quick Facts

CVE IDCVE-2017-15056
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-476
CISA KEVNo
Affected1 vendor(s)
PublishedOct 6, 2017

Related CVEs (CWE-476)

CVE-2010-2495
10.0
CVE-2022-36648
10.0
CVE-2017-17701
9.8
CVE-2017-1000471
9.8
CVE-2017-17700
9.8
CVE-2017-17699
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2017-15056 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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