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Fencer Vulns
medium 6.5

CVE-2018-7727 json

An issue was discovered in ZZIPlib 0.13.68.

published 2018-03-06 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-19442

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 69%
public exploits
0
none known

Summary

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.

Patch / fix

  • zziplib Ubuntu 20.04 LTS 0.13.62-3.2ubuntu1.1
  • zziplib Ubuntu Pro 16.04 LTS 0.13.62-3ubuntu0.16.04.2+esm1
  • zziplib Ubuntu Pro 18.04 LTS 0.13.62-3.1ubuntu0.18.04.1+esm1

ubuntu advisories UBUNTU-CVE-2018-7727

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • zziplib RHEL 7 0.13.62-9.el7
  • zziplib-utils RHEL 7 0.13.62-9.el7

red hat advisories RHSA-2018:3229

  • zziplib SLED 12 SP4, SLE Workstation Extension 12 SP5, SLE Workstation Extension 12 SP4 +2 more 0.13.67-10.25.1

suse advisories SUSE-SU-2019:3341-1

  • zziplib Arch Linux 0.13.69-1

arch linux advisories AVG-612

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-7727 updated cvss 3.3

zziplib: Memory leak in memdisk.c:zzip_mem_disk_new() can lead to denial of service via crafted zip

  • Red Hat Enterprise Linux Client (v. 7) zziplib 0.13.62-9.el7 Red Hat Enterprise Linux Client Optional (v. 7) zziplib-utils 0.13.62-9.el7 Red Hat Enterprise Linux ComputeNode Optional (v. 7) zziplib 0.13.62-9.el7, zziplib-utils 0.13.62-9.el7 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) zziplib 0.13.62-9.el7 Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) zziplib-utils 0.13.62-9.el7 Red Hat Enterprise Linux Server (v. 7) zziplib 0.13.62-9.el7
    +3 more products
    Red Hat Enterprise Linux Server Optional (v. 7) zziplib-utils 0.13.62-9.el7 Red Hat Enterprise Linux Workstation (v. 7) zziplib 0.13.62-9.el7 Red Hat Enterprise Linux Workstation Optional (v. 7) zziplib-utils 0.13.62-9.el7
    fixed: vendor fix RHSA-2018:3229
  • Red Hat Enterprise Linux 8 zziplib, zziplib-utils
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.24% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/gdraheim/zziplib/issues/40 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 6.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-772 Missing Release of Resource after Effective Lifetime

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.