CVE-2021-40985: debian debian_linux Out-of-bounds Read
CVSS: 5.5v3.1MediumModified
AliasesMGASA-2022-0014SUSE-SU-2021:14869-1UBUNTU-CVE-2021-40985DEBIAN-CVE-2021-40985openSUSE-SU-2024:11611-1
Published 03-11-2021Last modified 04-08-2024
Vulnerability summary
CVE-2021-40985 is a medium (CVSS 5.5) Out-of-bounds Read vulnerability in debian debian_linux. EPSS estimates a 0.94% chance of exploitation in the next 30 days, higher than 60.4% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
0.94%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github
Advisory lineage
Upstream 0 · Downstream 2 · Related 1Timeline
- 03-11-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
A stack-based buffer under-read in htmldoc before 1.9.12, allows attackers to cause a denial of service via a crafted BMP image to image_load_bmp.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 5.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
0.94%
Chance of exploitation in the next 30 days
Percentile
60%
Versus all other CVEs
30-day change
0.00 pp
From 0.94% on 21-09-2026
21-09-202621-10-2026
EPSS score0.94%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundHtmldoc
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Debian2 products
- htmldoc< 1.9.13-1
- debian_linuxEOL9.0
Htmldoc_project1 product
- htmldoc< 1.9.12
Mageia1 product
- htmldoc< 1.9.8-1.3.mga8
Opensuse1 product
- htmldoc&distro=openSUSE Tumbleweed< 1.9.12-2.1
Suse1 product
- htmldoc&distro=Subscription Management Tool 11 SP3< 1.8.27-170.4.3.1
Ubuntu1 product
- htmldoc< 1.8.27-8ubuntu1+esm3 | < 1.8.27-8ubuntu1.1+esm2 | < 1.9.2-1ubuntu0.2+esm1 | < 1.9.7-1ubuntu0.3+esm1
6 vendors · 7 products
References
13 links- github.com/michaelrsweet/htmldoc/commit/f12b9666e582a8e7b70f11b28e5ffc49ad625d43X Refsource MISCREPORTPatchThird Party Advisory
- github.com/michaelrsweet/htmldoc/issues/444X Refsource MISCREPORTExploitIssue TrackingPatchThird Party Advisory
lists.debian.org/debian-lts-announce/2022/02/msg00022.htmlMailing ListX Refsource MLISTThird Party Advisory