CVE-2017-5976

Exp

Heap-based buffer overflow in the zzip_mem_entry_extra_block function in memdisk.c in zziplib 0.13.62, 0.13.61, 0.13.60, 0.13.59, 0.13.58, 0.13.57, 0.13.56 allows remote attackers to cause a denial of service (crash) via a crafted ZIP file.

Published: 2017-03-01 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-5976 is rated High Exploit Risk (66.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.08%). 1 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.79% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2017-5976

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2017-5976

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.29% 2.08% +1.79%
2 2026-06-04 0.91% 0.29% -0.62%
3 2026-05-17 — 0.91% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-5976

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.5 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.8 3.6 [email protected]
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2017-5976

OS Trackers for CVE-2017-5976

vendor priority summary link
debian not yet assigned CVE-2017-5976 not yet assigned priority: Debian including 1 source packages (zziplib), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2017-5976
redhat low — https://access.redhat.com/security/cve/CVE-2017-5976
ubuntu medium CVE-2017-5976 medium priority: Ubuntu including 1 source packages (zziplib), 6 status rows across 6 suites (precise, trusty, upstream, xenial, yakkety, zesty): released 4, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2017-5976

Affected software / configurations for CVE-2017-5976

Vendor Product Version Raw CPE
gdraheim zziplib 0.13.56 cpe:2.3:a:gdraheim:zziplib:0.13.56:*:*:*:*:*:*:*
gdraheim zziplib 0.13.57 cpe:2.3:a:gdraheim:zziplib:0.13.57:*:*:*:*:*:*:*
gdraheim zziplib 0.13.58 cpe:2.3:a:gdraheim:zziplib:0.13.58:*:*:*:*:*:*:*
gdraheim zziplib 0.13.59 cpe:2.3:a:gdraheim:zziplib:0.13.59:*:*:*:*:*:*:*
gdraheim zziplib 0.13.60 cpe:2.3:a:gdraheim:zziplib:0.13.60:*:*:*:*:*:*:*
gdraheim zziplib 0.13.61 cpe:2.3:a:gdraheim:zziplib:0.13.61:*:*:*:*:*:*:*
gdraheim zziplib 0.13.62 cpe:2.3:a:gdraheim:zziplib:0.13.62:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

References for CVE-2017-5976

cvelogic Threat Intelligence