CVE-2021-34121
published 2023-07-18CVE-2021-34121: An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() in toc.cxx, this possibly leads to memory layout information leaking in the…
PriorityP338high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
EPSS
0.31%
22.9th percentile
An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() in toc.cxx, this possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | htmldoc | < htmldoc 1.9.13-1 (bookworm) | htmldoc 1.9.13-1 (bookworm) |
| htmldoc_project | htmldoc | — | — |
| htmldoc_project | htmldoc | >= 0 < 1.9.13-1 | 1.9.13-1 |
| htmldoc_project | htmldoc | >= 0 < 1.9.13-1 | 1.9.13-1 |
| htmldoc_project | htmldoc | >= 0 < 1.9.13-1 | 1.9.13-1 |
| 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
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
OSV
CVE-2021-34121: An Out of Bounds flaw was discovered in htmodoc 1
osv·2023-07-18·CVSS 7.8
CVE-2021-34121 [HIGH] CVE-2021-34121: An Out of Bounds flaw was discovered in htmodoc 1
An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() in toc.cxx, this possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution.
GHSA
GHSA-vvmp-35v7-f6q6: An Out of Bounds flaw was discovered in htmodoc 1
ghsa_unreviewed·2023-07-18
CVE-2021-34121 [HIGH] CWE-125 GHSA-vvmp-35v7-f6q6: An Out of Bounds flaw was discovered in htmodoc 1
An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() in toc.cxx, this possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution.
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-2021-34121: htmldoc - An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() ...
vendor_debian·2021·CVSS 7.8
CVE-2021-34121 [HIGH] CVE-2021-34121: htmldoc - An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() ...
An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() in toc.cxx, this possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution.
Scope: local
bookworm: resolved (fixed in 1.9.13-1)
bullseye: open
forky: resolved (fixed in 1.9.13-1)
sid: resolved (fixed in 1.9.13-1)
trixie: resolved (fixed in 1.9.13-1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2023-07-18
Published