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Fencer Intel
medium 6.5

CVE-2018-8977 json

In Exiv2 0.26, the Exiv2::Internal::printCsLensFFFF function in canonmn_int.cpp allows remote attackers to cause a denial of service (inval…

published 2018-03-25 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-0072

cvss
6.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.1%
EPSS 2.1% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

In Exiv2 0.26, the Exiv2::Internal::printCsLensFFFF function in canonmn_int.cpp allows remote attackers to cause a denial of service (invalid memory access) via a crafted file.

Patch / fix

  • exiv2 RHEL 7 0.27.0-2.el7_6
  • exiv2-libs RHEL 7 0.27.0-2.el7_6

red hat advisories RHSA-2019:2101

  • exiv2 SLES for SAP 15 SP2, SLES for SAP 15 SP1, SLES for SAP 15 +20 more 0.26-150000.6.16.1

suse advisories SUSE-SU-2022:3598-1

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-2018-8977 updated cvss 3.3

exiv2: invalid memory access in Exiv2::Internal::printCsLensFFFF function in canonmn_int.cpp

  • Red Hat Enterprise Linux Client (v. 7) exiv2 0.27.0-2.el7_6, exiv2-libs 0.27.0-2.el7_6 Red Hat Enterprise Linux Client Optional (v. 7) exiv2-doc 0.27.0-2.el7_6, exiv2-devel 0.27.0-2.el7_6, exiv2-debuginfo 0.27.0-2.el7_6 Red Hat Enterprise Linux ComputeNode (v. 7) exiv2 0.27.0-2.el7_6, exiv2-libs 0.27.0-2.el7_6 Red Hat Enterprise Linux ComputeNode Optional (v. 7) exiv2-doc 0.27.0-2.el7_6, exiv2-devel 0.27.0-2.el7_6, exiv2-debuginfo 0.27.0-2.el7_6 Red Hat Enterprise Linux Server (v. 7) exiv2 0.27.0-2.el7_6, exiv2-libs 0.27.0-2.el7_6 Red Hat Enterprise Linux Server Optional (v. 7) exiv2-doc 0.27.0-2.el7_6, exiv2-devel 0.27.0-2.el7_6, exiv2-debuginfo 0.27.0-2.el7_6
    +2 more products
    Red Hat Enterprise Linux Workstation (v. 7) exiv2 0.27.0-2.el7_6, exiv2-libs 0.27.0-2.el7_6 Red Hat Enterprise Linux Workstation Optional (v. 7) exiv2-doc 0.27.0-2.el7_6, exiv2-devel 0.27.0-2.el7_6, exiv2-debuginfo 0.27.0-2.el7_6
    fixed: vendor fix RHSA-2019:2101
  • Red Hat Enterprise Linux 6 exiv2, exiv2-libs Red Hat Enterprise Linux 8 exiv2, exiv2-libs
    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

2.10% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/Exiv2/exiv2/issues/247 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-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Intel 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.