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CVE-2018-7727· NVD / CVE Program· CNA mitre

An issue was discovered in ZZIPlib 0.13.68.

An issue was discovered in ZZIPlib 0.13.68. There is a memory leak triggered in the function zzip_mem_disk_new in memdisk.c, which will lead to a denial of service attack.

MediumCVSS 6.5 · v3.0—No exploit Fix available
Published
Mar 6, 2018
Updated
Jun 16, 2026
EPSS
1.3% · 68th percentile
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Report tools

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Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.3%

Noroxi analysis

No Noroxi analysis for this record yet

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Affected systems

VendorProduct
gdraheimzziplib
redhatenterprise linux desktop
redhatenterprise linux server
redhatenterprise linux workstation

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • gdraheim zziplib0.13.68
  • redhat enterprise linux desktop7.0
  • redhat enterprise linux server7.0
  • redhat enterprise linux workstation7.0

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12zzipliball versions—
Red Hat:enterprise_linux:7::clientzziplibbefore 0:0.13.62-9.el70:0.13.62-9.el7
Red Hat:enterprise_linux:7::clientzziplib-debuginfobefore 0:0.13.62-9.el70:0.13.62-9.el7
Red Hat:enterprise_linux:7::clientzziplib-develbefore 0:0.13.62-9.el70:0.13.62-9.el7
Red Hat:enterprise_linux:7::clientzziplib-utilsbefore 0:0.13.62-9.el70:0.13.62-9.el7
SUSE:Linux Enterprise Desktop 12 SP4zziplibbefore 0.13.67-10.25.10.13.67-10.25.1

Same product

gdraheim: all records

Other highest-scoring records for the same primary product.

  • CVE-2024-39134A Stack Buffer Overflow vulnerability in zziplibv 0.13.77 allows attackers to cause a denial of service via the __zzip_fetch_disk_trailer()
    30Monitor
  • CVE-2018-16548An issue was discovered in ZZIPlib through 0.13.69.
    27Monitor
  • CVE-2018-7726An issue was discovered in ZZIPlib 0.13.68.
    27Monitor
  • CVE-2018-7725An issue was discovered in ZZIPlib 0.13.68.
    27Monitor
  • CVE-2018-6869In ZZIPlib 0.13.68, there is an uncontrolled memory allocation and a crash in the __zzip_parse_root_directory function of zzip/zip.c.
    27Monitor
  • CVE-2018-6541In ZZIPlib 0.13.67, there is a bus error caused by loading of a misaligned address (when handling disk64_trailer local entries) in __zzip_fe
    27Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
red hat:zziplib0:0.13.62-9.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:zziplib-debuginfo0:0.13.62-9.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:zziplib-devel0:0.13.62-9.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:zziplib-utils0:0.13.62-9.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
suse:zziplib0.13.67-10.25.1 · SUSE:Linux Enterprise Desktop 12 SP4Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-772 · Missing Release of Resource after Effective Lifetime

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Attack patterns (CAPEC)

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records