CVE-2021-45942: debian debian_linux Out-of-bounds Write
CVSS: 5.5v3.1MediumModified
AliasesMGASA-2022-0020SUSE-SU-2022:0061-1SUSE-SU-2022:0062-1SUSE-SU-2022:0062-2openSUSE-SU-2022:0062-1UBUNTU-CVE-2021-45942DEBIAN-CVE-2021-45942
Published 31-12-2021Last modified 04-08-2024
Vulnerability summary
CVE-2021-45942 is a medium (CVSS 5.5) Out-of-bounds Write vulnerability in debian debian_linux. EPSS estimates a 1.77% chance of exploitation in the next 30 days, higher than 77.8% of scored vulnerabilities. 2 public exploits are recorded.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
1.77%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits2github, reference
Advisory lineage
Upstream 0 · Downstream 2Timeline
- 31-12-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
OpenEXR 3.1.x before 3.1.4 has a heap-based buffer overflow in Imf_3_1::LineCompositeTask::execute (called from IlmThread_3_1::NullThreadPoolProvider::addTask and IlmThread_3_1::ThreadPool::addGlobalTask). NOTE: db217f2 may be inapplicable.
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
1.77%
Chance of exploitation in the next 30 days
Percentile
78%
Versus all other CVEs
30-day change
0.00 pp
From 1.77% on 21-09-2026
21-09-202621-10-2026
EPSS score1.77%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundOpenexr
Maturity: poc
Exploit Reference (bugs.chromium.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Suse7 products
- cobbler&distro=SUSE Package Hub 15 SP3< 3.1.2-bp153.2.3.1
- openexr&distro=SUSE Linux Enterprise Module for Desktop Applications 15 SP3< 2.2.1-3.41.1
- openexr&distro=SUSE Linux Enterprise Real Time 15 SP2< 2.2.1-3.41.1
- openexr&distro=SUSE Linux Enterprise Server 12 SP5< 2.1.0-6.45.1
- openexr&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP5< 2.1.0-6.45.1
Debian2 products
- openexr< 3.1.5-2
- debian_linuxEOL10.0 | 11.0
Opensuse2 products
- cobbler&distro=openSUSE Leap 15.3< 3.1.2-bp153.2.3.1
- openexr&distro=openSUSE Leap 15.3< 2.2.1-3.41.1
Fedoraproject1 product
- fedoraEOL34 | 35 | 36
Mageia1 product
- openexr< 2.5.7-1.3.mga8
Openexr1 product
- openexr≥ 3.1.0, < 3.1.4
Ubuntu1 product
- openexrAll versions (No fix recorded)
7 vendors · 15 products
References
25 links- github.com/google/oss-fuzz-vulns/blob/main/vulns/openexr/OSV-2021-1627.yamlREPORTThird Party Advisory
- bugs.chromium.org/p/oss-fuzz/issues/detail?id=41416ExploitIssue TrackingMailing ListPatchThird Party Advisory
- github.com/AcademySoftwareFoundation/openexr/commit/db217f29dfb24f6b4b5100c24ac5e7490e1c57d0PatchThird Party Advisory
- github.com/AcademySoftwareFoundation/openexr/commit/11cad77da87c4fa2aab7d58dd5339e254db7937ePatchThird Party Advisory
- github.com/AcademySoftwareFoundation/openexr/blob/v3.1.4/CHANGES.mdRelease NotesThird Party Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
