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CVE-2022-1664· NVD / CVE Program· CNA debian

directory traversal for in-place extracts with untrusted v2 and v3 source packages with debian.tar

Noroxi assessment

Priority: Plan (action score 40/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 3.2% (FIRST EPSS); higher than 88% of all records.
  • Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Debian dpkg 1.18.26, 1.19.8, 1.20.10.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Add it to your regular patch cycle. Upgrade to Debian dpkg 1.18.26, 1.19.8, 1.20.10 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

Dpkg::Source::Archive in dpkg, the Debian package management system, before version 1.21.8, 1.20.10, 1.19.8, 1.18.26 is prone to a directory traversal vulnerability. When extracting untrusted source packages in v2 and v3 source package formats that include a debian.tar, the in-place extraction can lead to directory traversal situations on specially crafted orig.tar and debian.tar tarballs.

CriticalCVSS 9.8 · v3.1—No exploit Fix available
Published
May 26, 2022
Updated
Jun 17, 2026
EPSS
3.2% · 88th percentile

Report tools

JSON

Action score

40

Plan

Add it to your regular patch cycle.

CVSS
39 / 40 · 9.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
1 / 30 · 3.2%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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

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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
debiandpkg
debiandebian linux
netappontap select deploy administration utility

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
  • debian debian linux9.0
  • debian dpkg1.21.0 and later · before 1.21.8
  • debian dpkg1.14.17 and later · before 1.18.26
  • debian dpkg1.19.0 and later · before 1.19.8
  • debian dpkg1.20.0 and later · before 1.20.10
  • netapp ontap select deploy administration utilityall versions

Versions reported by the vendor

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

  • Debian dpkg

    • 1.14.17 and later · before 1.21.8affectedfixed in 1.20.10, 1.19.8, 1.18.26

Package-level exposure

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

EcosystemPackageAffected rangeFix
Alpine:v3.13dpkgfrom 1.14.17 · before 1.20.10-r01.20.10-r0
Alpine:v3.16dpkgfrom 1.14.17 · before 1.21.8-r01.21.8-r0
Debian:10dpkgbefore 1.19.81.19.8
Debian:11dpkgbefore 1.20.101.20.10
Debian:12dpkgbefore 1.21.81.21.8
Debian:9dpkgbefore 1.18.261.18.26
SUSE:Linux Enterprise Micro 5.3update-alternativesbefore 1.19.0.4-150000.4.4.11.19.0.4-150000.4.4.1
SUSE:Linux Enterprise Micro 5.3update-alternativesbefore 1.19.0.4-150000.4.4.11.19.0.4-150000.4.4.1
SUSE:Linux Enterprise Module for Development Tools 15 SP3dpkgbefore 1.19.0.4-150000.4.4.11.19.0.4-150000.4.4.1
SUSE:Linux Enterprise Module for Development Tools 15 SP3dpkgbefore 1.19.0.4-150000.4.4.11.19.0.4-150000.4.4.1
SUSE:Linux Enterprise Server 12 SP5update-alternativesbefore 1.18.4-16.3.51.18.4-16.3.5

Same product

debian: all records

Other highest-scoring records for the same primary product.

  • CVE-2017-8283dpkg-source in dpkg 1.3.0 through 1.18.23 is able to use a non-GNU patch program and does not offer a protection mechanism for blank-indente
    40Plan
  • CVE-2025-6297dpkg-deb: Fix cleanup for control member with restricted directories
    32Monitor
  • CVE-2015-0860Off-by-one error in the extracthalf function in dpkg-deb/extract.c in the dpkg-deb component in Debian dpkg 1.16.x before 1.16.17 and 1.17.x
    31Monitor

Published before and after this one in the same product

  • ← EarlierCVE-2014-8625Jan 20, 2015 · Multiple format string vulnerabilities in the parse_error_msg function in parsehelp.c in dpkg before 1.17.22 allow remote attackers to cause
    28Monitor
  • ← EarlierCVE-2015-0840Apr 13, 2015 · The dpkg-source command in Debian dpkg before 1.16.16 and 1.17.x before 1.17.25 allows remote attackers to bypass signature verification via
    18Monitor
  • Later →CVE-2026-2219Mar 7, 2026 · It was discovered that dpkg-deb (a component of dpkg, the Debian package management system) does not properly validate the end of the data s
    30Monitor

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
Debian dpkg1.18.26Vendor (CNA)
Debian dpkg1.19.8Vendor (CNA)
Debian dpkg1.20.10Vendor (CNA)
alpine:dpkg1.20.10-r0 · Alpine:v3.13Package registry (OSV)
debian:dpkg1.21.8 · Debian:12Package registry (OSV)
opensuse:dpkg1.19.0.4-150000.4.4.1 · openSUSE:Leap 15.3Package registry (OSV)
opensuse:update-alternatives1.19.0.4-150000.4.4.1 · openSUSE:Leap Micro 5.2Package registry (OSV)
suse:dpkg1.19.0.4-150000.4.4.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP3Package registry (OSV)
suse:update-alternatives1.18.4-16.3.5 · SUSE:Linux Enterprise Server 12 SP5Package registry (OSV)
suse:update-alternatives1.19.0.4-150000.4.4.1 · SUSE:Linux Enterprise Micro 5.3Package 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.

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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

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

nvd-primary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

ts
const file = path.join(ROOT, req.query.name);res.sendFile(file);

Fixed

ts
const file = path.resolve(ROOT, req.query.name);if (!file.startsWith(ROOT + path.sep)) {  return res.sendStatus(400);}res.sendFile(file);

Attack context

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

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

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

References

Show all references (6 more)

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

All records