CVE-2017-15364: The foreach function in ext/ccsv.c in Ccsv 1.1.0 allows remote attackers to cause a denial of service (double

Routine

MEDIUM 5.5DOWNGRADE

CVE-2017-15364 is a medium-severity flaw (CVSS 5.5) affecting ccsv. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The foreach function in ext/ccsv.c in Ccsv 1.1.0 allows remote attackers to cause a denial of service (double free and application crash) or possibly have unspecified other impact via a crafted file. NOTE: This has been disputed and it is argued that this is not present in version 1.1.0.

Why this priority

No elevated risk signals yet

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	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-415
Published	2017-10-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: ccsv project

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

Am I affected?

Timeline

2017-10-15 19:29 UTCPublished CVE record published
2026-06-17 01:07 UTCUpdated Record last modified

ccsv project ccsv DOWNGRADE

Affected: 1.1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.1.0 (Debian / Ubuntu)

apt-cache madison ccsv sudo apt install ccsv=<VERSION_BEFORE_1.1.0> sudo apt-mark hold ccsv

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

dnf --showduplicates list ccsv sudo dnf downgrade ccsv-<VERSION_BEFORE_1.1.0> sudo dnf versionlock add ccsv

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.

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-2017-15364?

ccsv: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2017-15364 being exploited?

CVE-2017-15364 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-2017-15364 affect?

CVE-2017-15364 affects ccsv. Severity is medium (CVSS 5.5). The foreach function in ext/ccsv.c in Ccsv 1.1.0 allows remote attackers to cause a denial of service (double free and application crash) or possibly have unspecified other impact via a crafted file. NOTE: This has been disputed and it is a

How urgent is CVE-2017-15364?

Priority 37/100. No elevated risk signals yet.

References

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