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No exploitation reportedFix available

CVE-2018-20548

No exploitation reported by the sources we read.

  • Published2018-12-28
  • WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

There is an illegal WRITE memory access at common-image.c (function load_image) in libcaca 0.99.beta19 for 1bpp data.

Timeline

dates in UTC
  1. 2018-12-2816:29CVE publishedNVD

Versions per branch

NVD
Canonical ubuntu linux
BranchAffectedFixed in
12.4= 12.04no fix published
14.4= 14.04no fix published
16.4= 16.04no fix published
18.4= 18.04no fix published
18.10= 18.10no fix published
Fedoraproject fedora
BranchAffectedFixed in
34.x= 34no fix published
35.x= 35no fix published
36.x= 36no fix published
Libcaca project libcaca
BranchAffectedFixed in
0.99= 0.99no fix published

1 more product in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • libcacaUbuntu:18.04:LTSall versions · fixed in 0.99.beta19-2ubuntu0.18.04.1
  • libcacaUbuntu:16.04:LTSall versions · fixed in 0.99.beta19-2ubuntu0.16.04.1
  • libcacaUbuntu:14.04:LTSall versions · fixed in 0.99.beta18-1ubuntu5.1
  • libcacaSUSE:Linux Enterprise Software Development Kit 12 SP5all versions · fixed in 0.99.beta18-14.3.27
  • libcacaSUSE:Linux Enterprise Software Development Kit 12 SP4all versions · fixed in 0.99.beta18-14.3.27
  • libcacaSUSE:Linux Enterprise Server for SAP Applications 12 SP5all versions · fixed in 0.99.beta18-14.3.27
  • libcacaSUSE:Linux Enterprise Server for SAP Applications 12 SP4all versions · fixed in 0.99.beta18-14.3.27
  • libcacaSUSE:Linux Enterprise Server 12 SP5all versions · fixed in 0.99.beta18-14.3.27

24 more package ranges on OSV.dev

Vendor advisories

  • CVE-2018-20548 Red Hat Product Security

    libcaca: out of bounds write in function load_image in common-image.c

Full record on NVD

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2018-12-28
Last Modified
2026-06-17
NVD status
Modified
GitHub Advisory
GHSA-f45j-8c54-9ff5

Frequently asked questions

What is CVE-2018-20548?

There is an illegal WRITE memory access at common-image.c (function load_image) in libcaca 0.99.beta19 for 1bpp data.

Is CVE-2018-20548 actively exploited?

Active exploitation of CVE-2018-20548 has not been confirmed. Its EPSS score was 1.8% on 2026-11-08, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-20548?

CVE-2018-20548 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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