DEBIAN-CVE-2026-34743

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Source
https://security-tracker.debian.org/tracker/CVE-2026-34743
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34743.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-34743
Upstream
Published
2026-04-02T19:21:33Z
Modified
2026-09-14T17:03:31Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

XZ Utils provide a general-purpose data-compression library plus command-line tools. Prior to version 5.8.3, if lzma_index_decoder() was used to decode an Index that contained no Records, the resulting lzma_index was left in a state where where a subsequent lzma_index_append() would allocate too little memory, and a buffer overflow would occur. This issue has been patched in version 5.8.3.

References

Affected packages

Debian:12 / xz-utils

Package

Name
xz-utils
Purl
pkg:deb/debian/xz-utils?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.4.1-1+deb12u1

Affected versions

5.*
5.4.1-0.2
5.4.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34743.json"

Debian:13 / xz-utils

Package

Name
xz-utils
Purl
pkg:deb/debian/xz-utils?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.8.1-1+deb13u1

Affected versions

5.*
5.8.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34743.json"

Debian:14 / xz-utils

Package

Name
xz-utils
Purl
pkg:deb/debian/xz-utils?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.8.3-1

Affected versions

5.*
5.8.1-1
5.8.1-1.1
5.8.1-2
5.8.2-1
5.8.2-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-34743.json"