CVE-2018-16648
published 2018-09-06CVE-2018-16648: In Artifex MuPDF 1.13.0, the fz_append_byte function in fitz/buffer.c allows remote attackers to cause a denial of service (segmentation fault) via a crafted…
PriorityP419medium5.5CVSS 3.0
AVLACLPRNUIRSUCNINAH
EPSS
1.47%
71.0th percentile
In Artifex MuPDF 1.13.0, the fz_append_byte function in fitz/buffer.c allows remote attackers to cause a denial of service (segmentation fault) via a crafted pdf file. This is caused by a pdf/pdf-device.c pdf_dev_alpha array-index underflow.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| artifex | mupdf | — | — |
| artifex | mupdf | >= 0 < 1.14.0+ds1-4 | 1.14.0+ds1-4 |
| artifex | mupdf | >= 0 < 1.14.0+ds1-4 | 1.14.0+ds1-4 |
| artifex | mupdf | >= 0 < 1.14.0+ds1-4 | 1.14.0+ds1-4 |
| artifex | mupdf | >= 0 < 1.14.0+ds1-4 | 1.14.0+ds1-4 |
| artifex | mupdf | >= 0 < 1.7a-1ubuntu0.1~esm1 | 1.7a-1ubuntu0.1~esm1 |
| artifex | mupdf | >= 0 < 1.12.0+ds1-1ubuntu0.1~esm1 | 1.12.0+ds1-1ubuntu0.1~esm1 |
| artifex | mupdf | >= 0 < 1.16.1+ds1-1ubuntu1+esm1 | 1.16.1+ds1-1ubuntu1+esm1 |
| debian | mupdf | < mupdf 1.14.0+ds1-4 (bookworm) | mupdf 1.14.0+ds1-4 (bookworm) |
CVSS provenance
nvdv3.05.5MEDIUMCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_ubuntu5.5MEDIUM
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
Ubuntu
MuPDF vulnerabilities
vendor_ubuntu·2025-10-16·CVSS 5.5
CVE-2018-16647 [MEDIUM] MuPDF vulnerabilities
Title: MuPDF vulnerabilities
Summary: Several security issues were fixed in MuPDF.
It was discovered that MuPDF incorrectly managed memory, resulting in a
memory leak. An attacker could possibly use this issue to cause a denial
of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-1000036)
It was discovered that MuPDF could enter an infinite loop when parsing
certain PDF files. An attacker could possibly use this issue to cause a
denial of service. This issue only affected Ubuntu 18.04 LTS.
(CVE-2018-10289)
It was discovered that MuPDF incorrectly managed memory, possibly leading
to a segmentation fault. An attacker could possibly use this issue to
cause a denial of service. This issue only affected Ubuntu 18.04 LTS.
(CVE-2018-16647, CVE-2018-16648)
It was discovered that M
Debian
CVE-2018-16648: mupdf - In Artifex MuPDF 1.13.0, the fz_append_byte function in fitz/buffer.c allows rem...
vendor_debian·2018·CVSS 5.5
CVE-2018-16648 [MEDIUM] CVE-2018-16648: mupdf - In Artifex MuPDF 1.13.0, the fz_append_byte function in fitz/buffer.c allows rem...
In Artifex MuPDF 1.13.0, the fz_append_byte function in fitz/buffer.c allows remote attackers to cause a denial of service (segmentation fault) via a crafted pdf file. This is caused by a pdf/pdf-device.c pdf_dev_alpha array-index underflow.
Scope: local
bookworm: resolved (fixed in 1.14.0+ds1-4)
bullseye: resolved (fixed in 1.14.0+ds1-4)
forky: resolved (fixed in 1.14.0+ds1-4)
sid: resolved (fixed in 1.14.0+ds1-4)
trixie: resolved (fixed in 1.14.0+ds1-4)
OSV
mupdf vulnerabilities
osv·2025-10-16·CVSS 5.5
CVE-2018-1000036 [MEDIUM] mupdf vulnerabilities
mupdf vulnerabilities
It was discovered that MuPDF incorrectly managed memory, resulting in a
memory leak. An attacker could possibly use this issue to cause a denial
of service. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-1000036)
It was discovered that MuPDF could enter an infinite loop when parsing
certain PDF files. An attacker could possibly use this issue to cause a
denial of service. This issue only affected Ubuntu 18.04 LTS.
(CVE-2018-10289)
It was discovered that MuPDF incorrectly managed memory, possibly leading
to a segmentation fault. An attacker could possibly use this issue to
cause a denial of service. This issue only affected Ubuntu 18.04 LTS.
(CVE-2018-16647, CVE-2018-16648)
It was discovered that MuPDF contained a use-after-free vulnerability.
An attacker cou
GHSA
GHSA-gh3f-f9wp-hrhm: In Artifex MuPDF 1
ghsa_unreviewed·2022-05-13
CVE-2018-16648 [MEDIUM] CWE-129 GHSA-gh3f-f9wp-hrhm: In Artifex MuPDF 1
In Artifex MuPDF 1.13.0, the fz_append_byte function in fitz/buffer.c allows remote attackers to cause a denial of service (segmentation fault) via a crafted pdf file. This is caused by a pdf/pdf-device.c pdf_dev_alpha array-index underflow.
OSV
CVE-2018-16648: In Artifex MuPDF 1
osv·2018-09-06·CVSS 5.5
CVE-2018-16648 [MEDIUM] CVE-2018-16648: In Artifex MuPDF 1
In Artifex MuPDF 1.13.0, the fz_append_byte function in fitz/buffer.c allows remote attackers to cause a denial of service (segmentation fault) via a crafted pdf file. This is caused by a pdf/pdf-device.c pdf_dev_alpha array-index underflow.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2018-16648 mupdf: Array index underflow in pdf_dev_alpha resulting in a crash
bugzilla·2018-09-07·CVSS 5.5
CVE-2018-16648 [MEDIUM] CVE-2018-16648 mupdf: Array index underflow in pdf_dev_alpha resulting in a crash
CVE-2018-16648 mupdf: Array index underflow in pdf_dev_alpha resulting in a crash
In Artifex MuPDF 1.13.0, the fz_append_byte function in fitz/buffer.c allows remote attackers to cause a denial of service (segmentation fault) via a crafted pdf file. This is caused by a pdf/pdf-device.c pdf_dev_alpha array-index underflow.
Upstream issue:
https://bugs.ghostscript.com/show_bug.cgi?id=699685
Discussion:
Created mupdf tracking bugs for this issue:
Affects: fedora-all [bug 1626484]
---
Upstream commit:
http://git.ghostscript.com/?p=mupdf.git;h=38f883fe129a5e89306252a4676eaaf4bc968824
---
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of thos
Bugzilla
CVE-2018-16647 CVE-2018-16648 mupdf: various flaws [fedora-all]
bugzilla·2018-09-07·CVSS 5.5
CVE-2018-16647 [MEDIUM] CVE-2018-16647 CVE-2018-16648 mupdf: various flaws [fedora-all]
CVE-2018-16647 CVE-2018-16648 mupdf: various flaws [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions of Fedora. Wh
https://bugs.ghostscript.com/show_bug.cgi?id=699685https://cgit.ghostscript.com/cgi-bin/cgit.cgi/mupdf.git/commit/?id=38f883fe129a5e89306252a4676eaaf4bc968824https://lists.debian.org/debian-lts-announce/2020/07/msg00019.htmlhttps://bugs.ghostscript.com/show_bug.cgi?id=699685https://lists.debian.org/debian-lts-announce/2020/07/msg00019.html
2018-09-06
Published