Is CVE-2018-11490 in the CISA KEV catalog?

No. CVE-2018-11490 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-11490?

CVE-2018-11490 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2018-11490?

CVE-2018-11490 has an EPSS score of 2.48% (83th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-11490?

Upgrade giflib on debian 11 to 5.1.9-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2018-11490

HIGHEPSS 83th pctl

8.8

CVSS v3

NVD

Description

The DGifDecompressLine function in dgif_lib.c in GIFLIB (possibly version 3.0.x), as later shipped in cgif.c in sam2p 0.49.4, has a heap-based buffer overflow because a certain "Private->RunningCode - 2" array index is not checked. This will lead to a denial of service or possibly unspecified other impact.

CWE-129 CWE-787Out-of-bounds Write

How to fix

Remediation Available

giflibDebian

Fixed in:5.1.9-1CVE-2018-11490

giflibUbuntu

Fixed in:5.1.4-0.3~16.04.1USN-4107-1

Fixed in:5.1.4-2ubuntu0.1USN-4107-1

giflib-toolsUbuntu

Fixed in:5.1.4-0.3~16.04.1USN-4107-1

Fixed in:5.1.4-2ubuntu0.1USN-4107-1

libgif7Ubuntu

Fixed in:5.1.4-0.3~16.04.1USN-4107-1

Fixed in:5.1.4-2ubuntu0.1USN-4107-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

2.48%probability of exploitation in 30 days

83rdpercentile

Elevated risk: more likely to be exploited than 83% of all known CVEs.

References

Third-Party Advisory4

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.