CVE-2020-21896
published 2023-08-22CVE-2020-21896: A Use After Free vulnerability in svg_dev_text_span_as_paths_defs function in source/fitz/svg-device.c in Artifex Software MuPDF 1.16.0 allows remote attackers…
PriorityP420medium5.5CVSS 3.1
AVLACLPRNUIRSUCNINAH
EPSS
0.45%
36.4th percentile
A Use After Free vulnerability in svg_dev_text_span_as_paths_defs function in source/fitz/svg-device.c in Artifex Software MuPDF 1.16.0 allows remote attackers to cause a denial of service via opening of a crafted PDF file.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| artifex | mupdf | — | — |
| artifex | mupdf | >= 0 < 1.17.0+ds1-2+deb11u1 | 1.17.0+ds1-2+deb11u1 |
| artifex | mupdf | >= 0 < 1.19.0+ds1-1 | 1.19.0+ds1-1 |
| artifex | mupdf | >= 0 < 1.19.0+ds1-1 | 1.19.0+ds1-1 |
| artifex | mupdf | >= 0 < 1.19.0+ds1-1 | 1.19.0+ds1-1 |
| 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 1.19.0+ds1-1 (bookworm) | mupdf 1.19.0+ds1-1 (bookworm) |
| github.com | ethereum_go-ethereum | >= 0 < 1.9.25 | 1.9.25 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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-2020-21896: mupdf - A Use After Free vulnerability in svg_dev_text_span_as_paths_defs function in so...
vendor_debian·2020·CVSS 5.5
CVE-2020-21896 [MEDIUM] CVE-2020-21896: mupdf - A Use After Free vulnerability in svg_dev_text_span_as_paths_defs function in so...
A Use After Free vulnerability in svg_dev_text_span_as_paths_defs function in source/fitz/svg-device.c in Artifex Software MuPDF 1.16.0 allows remote attackers to cause a denial of service via opening of a crafted PDF file.
Scope: local
bookworm: resolved (fixed in 1.19.0+ds1-1)
bullseye: resolved (fixed in 1.17.0+ds1-2+deb11u1)
forky: resolved (fixed in 1.19.0+ds1-1)
sid: resolved (fixed in 1.19.0+ds1-1)
trixie: resolved (fixed in 1.19.0+ds1-1)
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-99jc-cxpj-3838: A Use After Free vulnerability in svg_dev_text_span_as_paths_defs function in source/fitz/svg-device
ghsa_unreviewed·2023-08-22
CVE-2020-21896 [MEDIUM] CWE-416 GHSA-99jc-cxpj-3838: A Use After Free vulnerability in svg_dev_text_span_as_paths_defs function in source/fitz/svg-device
A Use After Free vulnerability in svg_dev_text_span_as_paths_defs function in source/fitz/svg-device.c in Artifex Software MuPDF 1.16.0 allows remote attackers to cause a denial of service via opening of a crafted PDF file.
OSV
CVE-2020-21896: A Use After Free vulnerability in svg_dev_text_span_as_paths_defs function in source/fitz/svg-device
osv·2023-08-22·CVSS 5.5
CVE-2020-21896 [MEDIUM] CVE-2020-21896: A Use After Free vulnerability in svg_dev_text_span_as_paths_defs function in source/fitz/svg-device
A Use After Free vulnerability in svg_dev_text_span_as_paths_defs function in source/fitz/svg-device.c in Artifex Software MuPDF 1.16.0 allows remote attackers to cause a denial of service via opening of a crafted PDF file.
GHSA
Denial of service in github.com/ethereum/go-ethereum
ghsa·2021-06-29
CVE-2020-26264 [MEDIUM] CWE-400 Denial of service in github.com/ethereum/go-ethereum
Denial of service in github.com/ethereum/go-ethereum
### Impact
A DoS vulnerability can make a LES server crash via malicious `GetProofsV2` request from a connected LES client.
### Patches
The vulnerability was patched in https://github.com/ethereum/go-ethereum/pull/21896.
### Workarounds
This vulnerability only concerns users explicitly enabling `les` server; disabling `les` prevents the exploit.
It can also be patched by manually applying the patch in https://github.com/ethereum/go-ethereum/pull/21896.
### For more information
If you have any questions or comments about this advisory:
* Open an issue in [go-ethereum](https://github.com/ethereum/go-ethereum)
* Email us at [[email protected]](mailto:[email protected])
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2023-08-22
Published