CVE-2017-6009: An issue was discovered in icoutils 0.31.1

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MEDIUM 5.5WATCHLISTDOWNGRADEMITIGATEMITIGATE

CVE-2017-6009 is a medium-severity flaw (CVSS 5.5) affecting icoutils, debian linux, enterprise linux desktop. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in icoutils 0.31.1. A buffer overflow was observed in the "decode_ne_resource_id" function in the "restable.c" source file. This is happening because the "len" parameter for memcpy is not checked for size and thus becomes a negative integer in the process, resulting in a failed memcpy. This affects wrestool.

Why this priority

Public exploit reference
On your watchlist

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.5% (top 25%)
CISA exploited list	No
Weakness	CWE-119
Published	2017-02-16
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: debian · icoutils project · redhat

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-02-16 11:59 UTCPublished CVE record published
2026-06-17 01:21 UTCUpdated Record last modified

icoutils project icoutils DOWNGRADE

Affected: 0.31.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.31.1

1. Check installed version

apt-cache policy icoutils || rpm -q icoutils || icoutils --version

2. No fixed release: DOWNGRADE to a release before 0.31.1 (Debian / Ubuntu)

apt-cache madison icoutils sudo apt install icoutils=<VERSION_BEFORE_0.31.1> sudo apt-mark hold icoutils

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list icoutils sudo dnf downgrade icoutils-<VERSION_BEFORE_0.31.1> sudo dnf versionlock add icoutils

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

debian debian linux MITIGATE

Affected: 8.0 · 9.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

redhat enterprise linux desktop MITIGATE

Affected: 7.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

redhat enterprise linux server MITIGATE

Affected: 7.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

redhat enterprise linux server aus MITIGATE

Affected: 7.3 · 7.4 · 7.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.3

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

redhat enterprise linux server eus MITIGATE

Affected: 7.3 · 7.4 · 7.5 · 7.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.3

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2017-6009?

icoutils: downgrade or apply the listed mitigation; debian linux: mitigate or apply the listed mitigation; enterprise linux desktop: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-6009 being exploited?

CVE-2017-6009 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2017-6009 affect?

CVE-2017-6009 affects icoutils, debian linux, enterprise linux desktop. Severity is medium (CVSS 5.5). An issue was discovered in icoutils 0.31.1. A buffer overflow was observed in the "decode_ne_resource_id" function in the "restable.c" source file. This is happening because the "len" parameter for memcpy is not checked for size and thus be

How urgent is CVE-2017-6009?

Priority 48/100. Public exploit reference; On your watchlist

Software pages

Debian vulnerabilities

Related CVEs

CVE-2017-6011 MEDIUM 5.5 DOWNGRADE MITIGATE An issue was discovered in icoutils 0.31.1
CVE-2017-6010 MEDIUM 5.5 DOWNGRADE MITIGATE An issue was discovered in icoutils 0.31.1
CVE-2017-5333 HIGH 7.8 UPGRADE MITIGATE Integer overflow in the extract_group_icon_cursor_resource function in b/wrestool/extract.c in icoutils before
CVE-2017-5332 HIGH 7.8 UPGRADE MITIGATE The extract_group_icon_cursor_resource in wrestool/extract.c in icoutils before 0.31.1 can access unallocated
CVE-2017-5331 HIGH 7.8 UPGRADE MITIGATE Integer overflow in the check_offset function in b/wrestool/fileread.c in icoutils before 0.31.1 allows local

References

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