CVE-2021-26948
published 2022-03-03CVE-2021-26948: Null pointer dereference in the htmldoc v1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service via a crafted html file.
PriorityP431high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
EPSS
0.79%
51.5th percentile
Null pointer dereference in the htmldoc v1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service via a crafted html file.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | htmldoc | < htmldoc 1.9.11-4 (bookworm) | htmldoc 1.9.11-4 (bookworm) |
| htmldoc_project | htmldoc | — | — |
| htmldoc_project | htmldoc | — | — |
| htmldoc_project | htmldoc | >= 0 < 1.9.11-4 | 1.9.11-4 |
| htmldoc_project | htmldoc | >= 0 < 1.9.11-4 | 1.9.11-4 |
| htmldoc_project | htmldoc | >= 0 < 1.9.11-4 | 1.9.11-4 |
| htmldoc_project | htmldoc | >= 0 < 1.9.11-4 | 1.9.11-4 |
| htmldoc_project | htmldoc | >= 0 < 1.8.27-8ubuntu1+esm3 | 1.8.27-8ubuntu1+esm3 |
| htmldoc_project | htmldoc | >= 0 < 1.8.27-8ubuntu1.1+esm2 | 1.8.27-8ubuntu1.1+esm2 |
| htmldoc_project | htmldoc | >= 0 < 1.9.2-1ubuntu0.2+esm1 | 1.9.2-1ubuntu0.2+esm1 |
| htmldoc_project | htmldoc | >= 0 < 1.9.7-1ubuntu0.3+esm1 | 1.9.7-1ubuntu0.3+esm1 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv9.8CRITICAL
vendor_ubuntu9.8CRITICAL
vendor_debian7.8LOW
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OSV
HTMLDOC vulnerabilities
osv·2025-01-08·CVSS 9.8
CVE-2021-20308 [CRITICAL] HTMLDOC vulnerabilities
HTMLDOC vulnerabilities
It was discovered that HTMLDOC incorrectly handled certain inputs, which
could lead to an integer overflow. An attacker could potentially use this
issue to cause a denial of service or execute arbitrary code.
(CVE-2021-20308)
It was discovered that HTMLDOC incorrectly handled memory in pspdf_export,
which could lead to a double-free. An attacker could potentially use this
issue to cause a denial of service or execute arbitrary code.
(CVE-2021-23158)
It was discovered that HTMLDOC incorrectly handled memory when loading a
JPEG image, which could lead to a NULL pointer dereference. An attacker
could potentially use this issue to cause a denial of service.
(CVE-2021-23191, CVE-2021-26948)
It was discovered that HTMLDOC incorrectly handled certain inputs, which
coul
GHSA
GHSA-2crh-849q-gg8v: Null pointer dereference in the htmldoc v1
ghsa_unreviewed·2022-03-05
CVE-2021-26948 [HIGH] CWE-476 GHSA-2crh-849q-gg8v: Null pointer dereference in the htmldoc v1
Null pointer dereference in the htmldoc v1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service via a crafted html file.
OSV
CVE-2021-26948: Null pointer dereference in the htmldoc v1
osv·2022-03-03·CVSS 7.8
CVE-2021-26948 [HIGH] CVE-2021-26948: Null pointer dereference in the htmldoc v1
Null pointer dereference in the htmldoc v1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service via a crafted html file.
Ubuntu
HTMLDOC vulnerabilities
vendor_ubuntu·2025-01-08·CVSS 9.8
CVE-2021-34121 [CRITICAL] HTMLDOC vulnerabilities
Title: HTMLDOC vulnerabilities
Summary: Several security issues were fixed in HTMLDOC.
It was discovered that HTMLDOC incorrectly handled certain inputs, which
could lead to an integer overflow. An attacker could potentially use this
issue to cause a denial of service or execute arbitrary code.
(CVE-2021-20308)
It was discovered that HTMLDOC incorrectly handled memory in pspdf_export,
which could lead to a double-free. An attacker could potentially use this
issue to cause a denial of service or execute arbitrary code.
(CVE-2021-23158)
It was discovered that HTMLDOC incorrectly handled memory when loading a
JPEG image, which could lead to a NULL pointer dereference. An attacker
could potentially use this issue to cause a denial of service.
(CVE-2021-23191, CVE-2021-26948)
It was discov
Debian
CVE-2021-26948: htmldoc - Null pointer dereference in the htmldoc v1.9.11 and before may allow attackers t...
vendor_debian·2021·CVSS 7.8
CVE-2021-26948 [HIGH] CVE-2021-26948: htmldoc - Null pointer dereference in the htmldoc v1.9.11 and before may allow attackers t...
Null pointer dereference in the htmldoc v1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service via a crafted html file.
Scope: local
bookworm: resolved (fixed in 1.9.11-4)
bullseye: resolved (fixed in 1.9.11-4)
forky: resolved (fixed in 1.9.11-4)
sid: resolved (fixed in 1.9.11-4)
trixie: resolved (fixed in 1.9.11-4)
No detection rules found.
Nuclei
Jellyfin Security Checks
nuclei·CVSS 9.8
CVE-2020-26948 [CRITICAL] Jellyfin Security Checks
Jellyfin Security Checks
A simple workflow that runs all Jellyfin related nuclei templates on a given target.
Template:
id: jellyfin-workflow
info:
name: Jellyfin Security Checks
author: dwisiswant0
description: A simple workflow that runs all Jellyfin related nuclei templates on a given target.
workflows:
- template: http/technologies/jellyfin-detect.yaml
subtemplates:
- template: http/cves/2020/CVE-2020-26948.yaml
- template: http/cves/2021/CVE-2021-21402.yaml
No writeups or analysis indexed.
2022-03-03
Published