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CVE-2018-6544

pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream...

5.5 MediumFix available

pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream recursively and therefore run out of error stack, which allows remote attackers to cause a denial of service via a crafted PDF document.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

1.57%Down 0.7 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 5.5

pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream recursively and therefore run out of error stack, which allows remote attackers to cause a denial of service via a crafted PDF document.

Record
CVE-2018-6544
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0
4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness
CWE-674
Updated
2026-11-02
CVE List No score

pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream recursively and therefore run out of error stack, which allows remote attackers to cause a denial of service via a crafted PDF document.

Record
CVE-2018-6544
Updated
2026-11-02
EUVDEUVD-2018-18296 No score

pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream recursively and therefore run out of error stack, which allows remote attackers to cause a denial of service via a crafted PDF document.

Record
EUVD-2018-18296
Updated
2026-11-03
GitHub AdvisoriesGHSA-3vq6-g92c-jm9j 5.5

pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream...

pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream recursively and therefore run out of error stack, which allows remote attackers to cause a denial of service via a crafted PDF document.

Record
GHSA-3vq6-g92c-jm9j
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness
CWE-674
Updated
2026-11-02
OSVALPINE-CVE-2018-6544 5.5

pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream recursively and therefore run out of error stack, which allows remote attackers to cause a denial of service via a crafted PDF document.

Record
ALPINE-CVE-2018-6544
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-03
OSV 5.5

pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream recursively and therefore run out of error stack, which allows remote attackers to cause a denial of service via a crafted PDF document.

Record
CVE-2018-6544
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2018-6544 5.5

pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream recursively and therefore run out of error stack, which allows remote attackers to cause a denial of service via a crafted PDF document.

Record
DEBIAN-CVE-2018-6544
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2018-6544 5.5

pdf_load_obj_stm in pdf/pdf-xref.c in Artifex MuPDF 1.12.0 could reference the object stream recursively and therefore run out of error stack, which allows remote attackers to cause a denial of service via a crafted PDF document.

Record
UBUNTU-CVE-2018-6544
CVSS 3.0
5.5 MediumCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2024:11068-1 No score

mupdf-1.18.0-1.7 on GA media

These are all security issues fixed in the mupdf-1.18.0-1.7 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2024:11068-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
mupdf
Alpine:v3.10
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.11
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.12
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.13
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.14
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.15
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.16
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.17
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.18
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.19
 before 1.13-r0
1.13-r0
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Affected packages
PackageAffectedFixed
mupdf
Alpine:v3.20
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.21
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.22
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.23
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.24
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.7
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.8
 before 1.13-r0
1.13-r0
mupdf
Alpine:v3.9
 before 1.13-r0
1.13-r0
mupdf
Debian:12
 before 1.12.0+ds1-1
1.12.0+ds1-1
mupdf
Debian:13
 before 1.12.0+ds1-1
1.12.0+ds1-1
mupdf
Debian:14
 before 1.12.0+ds1-1
1.12.0+ds1-1
mupdf
Debian:8
 before 1.5-1+deb8u4, plus listed versions
1.5-11.5-1+deb8u11.5-1+deb8u21.5-1+deb8u3
1.5-1+deb8u4
mupdf
Debian:9
 before 1.9a+ds1-4+deb9u3, plus listed versions
1.9a+ds1-41.9a+ds1-4+deb9u11.9a+ds1-4+deb9u2
1.9a+ds1-4+deb9u3
mupdf
Ubuntu:Pro:16.04:LTS
 All versions, plus listed versions
1.7-11.7a-11.7a-1ubuntu0.1~esm1
 None known
mupdf
openSUSE:Tumbleweed
 before 1.18.0-1.7
1.18.0-1.7

History

History
RecordedChangedSources
affectedOSV
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-6544 is a medium vulnerability (CVSS 5.5) in Artifex Mupdf, published February 2, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.57%, the 75th percentile. Fixed in mupdf 1.13-r0.

References

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