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Fencer Vulns
high 7.1

CVE-2018-10195 json

lrzsz before version 0.12.21~rc can leak information to the receiving side due to an incorrect length check in the function zsdata that cau…

published 2021-06-02 5 y ago modified 2026-06-17 4 mo ago also EUVD-2018-2271

cvss
7.1
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 33%
public exploits
0
none known

Summary

lrzsz before version 0.12.21~rc can leak information to the receiving side due to an incorrect length check in the function zsdata that causes a size_t to wrap around.

Patch / fix

  • lrzsz Debian 14, Debian 13, Debian 12 0.12.21-10

debian advisories DEBIAN-CVE-2018-10195

  • lrzsz Ubuntu 14.04 LTS 0.12.21-10~build0.14.04.1
  • lrzsz Ubuntu 16.04 LTS 0.12.21-10~build0.16.04.1
  • lrzsz Ubuntu 18.04 LTS 0.12.21-10~build0.18.04.1

ubuntu advisories UBUNTU-CVE-2018-10195

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

  • rzsz SLES for SAP 11 SP4, SLES 11 SP4 0.12.21~rc-936.3.1
  • rzsz SLES for SAP 12 SP3, SLES 12 SP3, SLED 12 SP3 0.12.21~rc-1001.3.1

suse advisories SUSE-SU-2018:1070-1SUSE-SU-2018:1066-1

  • rzsz openSUSE Tumbleweed 0.12.21~rc-4.5

opensuse advisories openSUSE-SU-2024:11363-1

  • lrzsz Arch Linux 0.12.20-8

arch linux advisories AVG-2027

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-2018-10195 updated cvss 4.4

lrzsz: Integer overflow in src/zm.c:zsdata() causes crash in sz and can leak information to receiver

  • Red Hat Enterprise Linux 5 lrzsz Red Hat Enterprise Linux 6 lrzsz Red Hat Enterprise Linux 7 lrzsz Red Hat Enterprise Linux 8 lrzsz
    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

0.39% chance of exploitation in the next 30 days, higher than 33% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
NVD 2.0 3.6 AV:L/AC:L/Au:N/C:P/I:N/A:P

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

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.