DEBIAN-CVE-2026-122330

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Source

https://security-tracker.debian.org/tracker/CVE-2026-122330

Import Source

https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-122330.json

JSON Data

https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-122330

Upstream

CVE-2026-122330

Published

2026-11-05T16:17:46Z

Modified

2026-11-07T22:00:06Z

Severity

6.8 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Summary

[none]

Details

Blosc c-blosc2 before 3.5.0 contains a divide-by-zero vulnerability in blosc2_schunk_get_slice_buffer() in blosc/schunk.c that allows attackers to crash applications by supplying crafted frames with unchecked zero chunksize or blocksize values. Attackers can provide a malicious Blosc2 frame opened via blosc2_schunk_open() or blosc2_schunk_from_buffer() and read as a slice, raising SIGFPE and terminating the process.

References

https://security-tracker.debian.org/tracker/CVE-2026-122330

Affected packages

Debian:13 / c-blosc2

Package

Name: c-blosc2
Purl: pkg:deb/debian/c-blosc2?arch=source&distro=trixie

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.17.1+ds-1

2.17.1+ds-2

2.22.0+ds-1~exp1

2.22.0+ds-1

2.23.0+ds-1~exp1

2.23.0+ds-1~exp2

2.23.0+ds-1

2.23.1+ds-1

2.23.1+ds-2

3.*

3.1.5-1~exp1

3.2.3-1~exp1

3.3.5-1~exp1

3.3.5-1

3.4.1-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source

"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-122330.json"

Debian:14 / c-blosc2