DEBIAN-CVE-2026-120756
- Source
- https://security-tracker.debian.org/tracker/CVE-2026-120756
- Import Source
- https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120756.json
- JSON Data
- https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-120756
- Upstream
- Published
- 2026-11-03T16:17:22Z
- Modified
- 2026-11-04T15:00:06Z
- Severity
-
- 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
HDF5 through 2.2.0 contains a heap buffer over-read vulnerability in H5O__chunk_deserialize() in src/H5Ocache.c. When decoding object header messages, the declared message size is checked against the end of the chunk image before the remainder of the message header (flags, and for version 2 object headers, the optional creation index) has been decoded. Because the message body begins after these fields, a message can start up to four bytes further into the chunk than the size check accounts for. A crafted HDF5 file can declare a message size that passes the check but extends past the end of the chunk image, causing the message’s decode callback, for example H5O__mtime_new_decode() in src/H5Omtime.c, to read beyond the heap allocation. The flaw is reachable during H5Fopen() on a crafted file. An attacker who can get a user or application to open a malicious file can cause a denial of service or limited disclosure of process memory.
- References
Affected packages
Debian:12 / hdf5
Package
- Name
- hdf5
- Purl
- pkg:deb/debian/hdf5?arch=source&distro=bookworm
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
1.*
1.10.8+repack1-1
1.10.10+repack-1
1.10.10+repack-2
1.10.10+repack-3
1.10.10+repack-3.1
1.10.10+repack-3.2
1.10.10+repack-3.2+ports
1.10.10+repack-3.3
1.10.10+repack-4
1.10.10+repack-5
1.12.0+repack-1~exp1
1.12.0+repack-1~exp2
1.12.2+repack-1~exp1
1.14.3+repack-1~exp1
1.14.3+repack1-1~exp2
1.14.3+repack1-1~exp3
1.14.4.3+repack-1~exp1
1.14.4.3+repack-1~exp2
1.14.4.3+repack-1~exp3
1.14.5+repack-1~exp1
1.14.5+repack-1~exp2
1.14.5+repack-1~exp3
1.14.5+repack-1~exp4
1.14.5+repack-1~exp5
1.14.5+repack-1~exp6
1.14.5+repack-1
1.14.5+repack-2
1.14.5+repack-3~exp1
1.14.5+repack-3~exp2
1.14.5+repack-3~exp3
1.14.5+repack-3~exp4
1.14.5+repack-3
1.14.5+repack-3.1
1.14.5+repack-4~exp1
1.14.5+repack-4~exp2
1.14.5+repack-4
1.14.5+repack-5~exp2
1.14.5+repack-5~exp3
1.14.6+repack-1~exp1
1.14.6+repack-1~exp2
1.14.6+repack-1~exp3
1.14.6+repack-1~exp4
1.14.6+repack-1~exp5
1.14.6+repack-1~exp6
1.14.6+repack-1~exp7
1.14.6+repack-1~exp8
1.14.6+repack-1~exp9
1.14.6+repack-1~exp10
1.14.6+repack-1~exp11
1.14.6+repack-1~exp12
1.14.6+repack-1~exp13
1.14.6+repack-1~exp14
1.14.6+repack-1~exp15
1.14.6+repack-1~exp16
1.14.6+repack-1~exp17
1.14.6+repack-1~exp18
1.14.6+repack-1~exp19
1.14.6+repack-1~exp20
1.14.6+repack-1~exp21
1.14.6+repack-1
1.14.6+repack-2
1.14.6+repack-3~exp1
2.*
2.1.0+repack-1~exp3
2.1.0+repack-1~exp4
2.1.0+repack-1~exp5
2.1.0+repack-1~exp6
2.1.0+repack-1~exp7
2.1.0+repack-1~exp8
2.1.0+repack-1~exp9
2.1.0+repack-1~exp10
2.1.0+repack-1~exp11
2.1.0+repack-1
2.2.0+repack-1
2.2.0+repack-2
2.2.0+repack-3
2.2.0+repack-4
2.2.0+repack-5
2.2.0+repack-6
Debian:13 / hdf5
Package
- Name
- hdf5
- Purl
- pkg:deb/debian/hdf5?arch=source&distro=trixie
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
1.*
1.14.5+repack-3
1.14.5+repack-3.1
1.14.5+repack-4~exp1
1.14.5+repack-4~exp2
1.14.5+repack-4
1.14.5+repack-5~exp2
1.14.5+repack-5~exp3
1.14.6+repack-1~exp1
1.14.6+repack-1~exp2
1.14.6+repack-1~exp3
1.14.6+repack-1~exp4
1.14.6+repack-1~exp5
1.14.6+repack-1~exp6
1.14.6+repack-1~exp7
1.14.6+repack-1~exp8
1.14.6+repack-1~exp9
1.14.6+repack-1~exp10
1.14.6+repack-1~exp11
1.14.6+repack-1~exp12
1.14.6+repack-1~exp13
1.14.6+repack-1~exp14
1.14.6+repack-1~exp15
1.14.6+repack-1~exp16
1.14.6+repack-1~exp17
1.14.6+repack-1~exp18
1.14.6+repack-1~exp19
1.14.6+repack-1~exp20
1.14.6+repack-1~exp21
1.14.6+repack-1
1.14.6+repack-2
1.14.6+repack-3~exp1
2.*
2.1.0+repack-1~exp3
2.1.0+repack-1~exp4
2.1.0+repack-1~exp5
2.1.0+repack-1~exp6
2.1.0+repack-1~exp7
2.1.0+repack-1~exp8
2.1.0+repack-1~exp9
2.1.0+repack-1~exp10
2.1.0+repack-1~exp11
2.1.0+repack-1
2.2.0+repack-1
2.2.0+repack-2
2.2.0+repack-3
2.2.0+repack-4
2.2.0+repack-5
2.2.0+repack-6
Debian:14 / hdf5
Package
- Name
- hdf5
- Purl
- pkg:deb/debian/hdf5?arch=source&distro=forky
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affected
Affected versions
1.*
1.14.5+repack-3
1.14.5+repack-3.1
1.14.5+repack-4~exp1
1.14.5+repack-4~exp2
1.14.5+repack-4
1.14.5+repack-5~exp2
1.14.5+repack-5~exp3
1.14.6+repack-1~exp1
1.14.6+repack-1~exp2
1.14.6+repack-1~exp3
1.14.6+repack-1~exp4
1.14.6+repack-1~exp5
1.14.6+repack-1~exp6
1.14.6+repack-1~exp7
1.14.6+repack-1~exp8
1.14.6+repack-1~exp9
1.14.6+repack-1~exp10
1.14.6+repack-1~exp11
1.14.6+repack-1~exp12
1.14.6+repack-1~exp13
1.14.6+repack-1~exp14
1.14.6+repack-1~exp15
1.14.6+repack-1~exp16
1.14.6+repack-1~exp17
1.14.6+repack-1~exp18
1.14.6+repack-1~exp19
1.14.6+repack-1~exp20
1.14.6+repack-1~exp21
1.14.6+repack-1
1.14.6+repack-2
1.14.6+repack-3~exp1
2.*
2.1.0+repack-1~exp3
2.1.0+repack-1~exp4
2.1.0+repack-1~exp5
2.1.0+repack-1~exp6
2.1.0+repack-1~exp7
2.1.0+repack-1~exp8
2.1.0+repack-1~exp9
2.1.0+repack-1~exp10
2.1.0+repack-1~exp11
2.1.0+repack-1
2.2.0+repack-1
2.2.0+repack-2
2.2.0+repack-3
2.2.0+repack-4
2.2.0+repack-5
2.2.0+repack-6