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CVE-2022-0891· NVD / CVE Program· CNA GitLab

A heap buffer overflow in ExtractImageSection function in tiffcrop.c in libtiff library Version 4.3.0 allows attacker to trigger unsafe or o

Noroxi assessment

Priority: Monitor (action score 28/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 1.5% (FIRST EPSS); higher than 74.5% of all records.
  • 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.
  • Fixed version: libtiff (AlmaLinux:8) 4.0.9-23.el8; libtiff-devel (AlmaLinux:8) 4.0.9-23.el8; libtiff-tools (AlmaLinux:8) 4.0.9-23.el8.

Low priority for now. Upgrade to libtiff (AlmaLinux:8) 4.0.9-23.el8; libtiff-devel (AlmaLinux:8) 4.0.9-23.el8; libtiff-tools (AlmaLinux:8) 4.0.9-23.el8 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A heap buffer overflow in ExtractImageSection function in tiffcrop.c in libtiff library Version 4.3.0 allows attacker to trigger unsafe or out of bounds memory access via crafted TIFF image file which could result into application crash, potential information disclosure or any other context-dependent impact

HighCVSS 7.1 · v3.1—Proof of concept Fix available
Published
Mar 10, 2022
Updated
Jun 17, 2026
EPSS
1.5% · 74th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 1.5%

CNA vs NVD score

NVD
7.1
CNA · GitLab
6.1
1.0 point gap

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2022-0891

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
libtifflibtiff
debiandebian linux
fedoraprojectfedora
netappactive iq unified manager

Affected versions

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

  • debian debian linux10.0
  • debian debian linux11.0
  • fedoraproject fedora35
  • fedoraproject fedora36
  • libtiff libtiff3.9.0 and later · up to 4.3.0 inclusive
  • netapp active iq unified managerall versions

Versions reported by the vendor

Affected version ranges reported by the assigning authority (GitLab). Independent of NVD's CPE analysis and usually ahead of it.

  • libtiff libtiff

    • >=3.9.0, <=4.3.0affected

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:8libtiffbefore 4.0.9-23.el84.0.9-23.el8
AlmaLinux:8libtiff-develbefore 4.0.9-23.el84.0.9-23.el8
AlmaLinux:8libtiff-toolsbefore 4.0.9-23.el84.0.9-23.el8
AlmaLinux:9libtiffbefore 4.4.0-2.el94.4.0-2.el9
AlmaLinux:9libtiff-develbefore 4.4.0-2.el94.4.0-2.el9
AlmaLinux:9libtiff-toolsbefore 4.4.0-2.el94.4.0-2.el9
Alpine:v3.13tiffbefore 4.3.0-r04.3.0-r0
Alpine:v3.15tiffbefore 4.3.0-r14.3.0-r1
Debian:10tiffbefore 4.1.0+git191117-2~deb10u44.1.0+git191117-2~deb10u4
Debian:11tiffbefore 4.2.0-1+deb11u14.2.0-1+deb11u1
Debian:12tiffbefore 4.3.0-64.3.0-6
openSUSE:Tumbleweedtiffbefore 4.3.0-2.14.3.0-2.1
Red Hat:enterprise_linux:8::appstreamlibtiffbefore 0:4.0.9-23.el80:4.0.9-23.el8
Red Hat:enterprise_linux:8::appstreamlibtiff-debuginfobefore 0:4.0.9-23.el80:4.0.9-23.el8
Red Hat:enterprise_linux:8::appstreamlibtiff-debugsourcebefore 0:4.0.9-23.el80:4.0.9-23.el8
Red Hat:enterprise_linux:8::appstreamlibtiff-develbefore 0:4.0.9-23.el80:4.0.9-23.el8
Red Hat:enterprise_linux:8::appstreamlibtiff-tools-debuginfobefore 0:4.0.9-23.el80:4.0.9-23.el8
Red Hat:enterprise_linux:8::crblibtiff-toolsbefore 0:4.0.9-23.el80:4.0.9-23.el8
Red Hat:enterprise_linux:9::appstreamlibtiffbefore 0:4.4.0-2.el90:4.4.0-2.el9
Red Hat:enterprise_linux:9::appstreamlibtiff-debuginfobefore 0:4.4.0-2.el90:4.4.0-2.el9
Red Hat:enterprise_linux:9::appstreamlibtiff-debugsourcebefore 0:4.4.0-2.el90:4.4.0-2.el9
Red Hat:enterprise_linux:9::appstreamlibtiff-develbefore 0:4.4.0-2.el90:4.4.0-2.el9
Red Hat:enterprise_linux:9::appstreamlibtiff-tools-debuginfobefore 0:4.4.0-2.el90:4.4.0-2.el9
Red Hat:enterprise_linux:9::crblibtiff-toolsbefore 0:4.4.0-2.el90:4.4.0-2.el9

+4

Other highest-scoring records for the same primary product.

  • CVE-2006-3459Multiple stack-based buffer overflows in the TIFF library (libtiff) before 3.8.2, as used in Adobe Reader 9.3.0 and other products, allow co
    46Plan
  • CVE-2004-1308Integer overflow in (1) tif_dirread.c and (2) tif_fax3.c for libtiff 3.5.7 and 3.7.0 allows remote attackers to execute arbitrary code via a
    44Plan
  • CVE-2018-12900Heap-based buffer overflow in the cpSeparateBufToContigBuf function in tiffcp.c in LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0beta7, 4.
    43Plan
  • CVE-2015-8668Heap-based buffer overflow in the PackBitsPreEncode function in tif_packbits.c in bmp2tiff in libtiff 4.0.6 and earlier allows remote attack
    43Plan
  • CVE-2004-0929Heap-based buffer overflow in the OJPEGVSetField function in tif_ojpeg.c for libtiff 3.6.1 and earlier, when compiled with the OJPEG_SUPPORT
    42Plan
  • CVE-2016-9540tools/tiffcp.c in libtiff 4.0.6 has an out-of-bounds write on tiled images with odd tile width versus image width.
    40Plan

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
almalinux:libtiff4.0.9-23.el8 · AlmaLinux:8Package registry (OSV)
almalinux:libtiff-devel4.0.9-23.el8 · AlmaLinux:8Package registry (OSV)
almalinux:libtiff-tools4.0.9-23.el8 · AlmaLinux:8Package registry (OSV)
alpine:tiff4.3.0-r0 · Alpine:v3.13Package registry (OSV)
debian:tiff4.3.0-6 · Debian:12Package registry (OSV)
opensuse:tiff4.0.9-150000.45.8.1 · openSUSE:Leap 15.3Package registry (OSV)
red hat:libtiff0:4.0.9-23.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:libtiff-debuginfo0:4.0.9-23.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:libtiff-debugsource0:4.0.9-23.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:libtiff-devel0:4.0.9-23.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:libtiff-tools0:4.0.9-23.el8 · Red Hat:enterprise_linux:8::crbPackage registry (OSV)
red hat:libtiff-tools-debuginfo0:4.0.9-23.el8 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
rocky linux:libtiff0:4.0.9-23.el8 · Rocky Linux:8Package registry (OSV)
suse:tiff4.0.9-150000.45.8.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP3Package registry (OSV)
suse:tiff4.0.9-44.48.1 · SUSE:Linux Enterprise Software Development Kit 12 SP5Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:02026-10-03

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.

  1. Published
  2. First PoC+1667 d
  3. TodayOct 17, 2026+1682 d
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.

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

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
low · data can be read
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
Low
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-787 · Out-of-bounds Write

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/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.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Exploit maturitynone → poc
  2. Fix✗ → ✓

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

References

All records