How severe is CVE-2018-0644?

CVE-2018-0644 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2018-0644 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-0644?

CVE-2018-0644 primarily affects Canonical Ubuntu Linux. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2018-0644?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-0644 published?

CVE-2018-0644 was published on 2018-09-07 and last updated on 2026-06-17.

CVE-2018-0644

CVE-2018-0644 is a medium-severity vulnerability in Canonical Ubuntu Linux with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v2: 4.0
EPSS exploit prediction: 1% (59th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Canonical Ubuntu Linux
Published: 2018-09-07
Last modified: 2026-06-17

Description

Buffer overflow in Ubuntu14.04 ORCA (Online Receipt Computer Advantage) 4.8.0 (panda-client2) 1:1.4.9+p41-u4jma1 and earlier, Ubuntu14.04 ORCA (Online Receipt Computer Advantage) 5.0.0 (panda-client2) 1:2.0.0+p48-u4jma1 and earlier, and Ubuntu16.04 ORCA (Online Receipt Computer Advantage) 5.0.0 (panda-client2) 1:2.0.0+p48-u5jma1 and earlier allows authenticated attackers to cause denial-of-service (DoS) condition via unspecified vectors.

Frequently asked questions

What is CVE-2018-0644?: Buffer overflow in Ubuntu14.04 ORCA (Online Receipt Computer Advantage) 4.8.0 (panda-client2) 1:1.4.9+p41-u4jma1 and earlier, Ubuntu14.04 ORCA (Online Receipt Computer Advantage) 5.0.0 (panda-client2) 1:2.0.0+p48-u4jma1 and earlier, and Ubuntu16.04 ORCA (Online Receipt Computer Advantage) 5.0.0 (panda-client2) 1:2.0.0+p48-u5jma1 and earlier allows authenticated attackers to cause denial-of-service (DoS) condition via unspecified vectors.
How severe is CVE-2018-0644?: CVE-2018-0644 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2018-0644 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (59th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-0644?: CVE-2018-0644 primarily affects Canonical Ubuntu Linux. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2018-0644?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-0644 published?: CVE-2018-0644 was published on 2018-09-07 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

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