CVE-2021-45943: debian debian_linux Out-of-bounds Write
CVSS: 5.5v3.1MediumModified
AliasesMGASA-2022-0137PYSEC-2022-43065BIT-gdal-2021-45943UBUNTU-CVE-2021-45943DEBIAN-CVE-2021-45943DSA-5239-1
Published 31-12-2021Last modified 04-08-2024
Vulnerability summary
CVE-2021-45943 is a medium (CVSS 5.5) Out-of-bounds Write vulnerability in debian debian_linux. EPSS estimates a 1.49% chance of exploitation in the next 30 days, higher than 73.7% of scored vulnerabilities. 2 public exploits are recorded.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
1.49%
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
GDAL 3.3.0 through 3.4.0 has a heap-based buffer overflow in PCIDSK::CPCIDSKFile::ReadFromFile (called from PCIDSK::CPCIDSKSegment::ReadFromFile and PCIDSK::CPCIDSKBinarySegment::CPCIDSKBinarySegment).
CVSS metrics
5 scores · 4 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 4 agree
- OSV · PypiEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- 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
1.49%
Chance of exploitation in the next 30 days
Percentile
74%
Versus all other CVEs
30-day change
0.00 pp
From 1.49% on 19-09-2026
19-09-202619-10-2026
EPSS score1.49%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
2 foundGdal
Maturity: poc
Exploit Reference (bugs.chromium.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Debian2 products
- gdal< 3.4.1+dfsg-1 | < 3.2.2+dfsg-2+deb11u2
- debian_linuxEOL9.0 | 10.0 | 11.0
Fedoraproject1 product
- fedoraEOL34 | 35
Mageia1 product
- gdal< 3.1.3-7.2.mga8
Oracle1 product
- spatial_and_graph19c | 21c
Osgeo1 product
- gdal≥ 3.3.0, ≤ 3.4.0
PyPI1 product
- gdal< 1ca6a3e5168c200763fa46d8aa7e698d0b757e7e | ≥ 3.3.0, < 3.4.1
Ubuntu1 product
- gdalAll versions (No fix recorded)
7 vendors · 8 products
References
19 links- github.com/google/oss-fuzz-vulns/blob/main/vulns/gdal/OSV-2021-1651.yamlWEBREPORTThird Party Advisory
- bugs.chromium.org/p/oss-fuzz/issues/detail?id=41993WEBREPORTExploitIssue TrackingMailing ListPatchThird Party Advisory
- github.com/OSGeo/gdal/commit/1ca6a3e5168c200763fa46d8aa7e698d0b757e7eFIXREPORTPatchThird Party Advisory
