DEBIAN-CVE-2021-43396

Source
https://security-tracker.debian.org/tracker/CVE-2021-43396
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43396.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2021-43396
Upstream
Published
2021-11-04T20:15:09Z
Modified
2026-09-15T09:02:39Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

In iconvdata/iso-2022-jp-3.c in the GNU C Library (aka glibc) 2.34, remote attackers can force iconv() to emit a spurious '\0' character via crafted ISO-2022-JP-3 data that is accompanied by an internal state reset. This may affect data integrity in certain iconv() use cases. NOTE: the vendor states "the bug cannot be invoked through user input and requires iconv to be invoked with a NULL inbuf, which ought to require a separate application bug to do so unintentionally. Hence there's no security impact to the bug.

References

Affected packages

Debian:12 / glibc

Package

Name
glibc
Purl
pkg:deb/debian/glibc?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.32-5

Ecosystem specific

{
    "urgency":  "unimportant"
}

Database specific

source
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43396.json"

Debian:13 / glibc

Package

Name
glibc
Purl
pkg:deb/debian/glibc?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.32-5

Ecosystem specific

{
    "urgency":  "unimportant"
}

Database specific

source
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43396.json"

Debian:14 / glibc

Package

Name
glibc
Purl
pkg:deb/debian/glibc?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2.32-5

Ecosystem specific

{
    "urgency":  "unimportant"
}

Database specific

source
"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2021-43396.json"