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Vulnerability · Published Apr 2, 2024 · Assigned by VulDB

CVE-2024-3203c-blosc2 ndlz8x8.c ndlz8_decompress heap-based overflow

High 7.3

In plain English

A high-severity heap buffer overflow in c-blosc2. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.4% (higher than 72% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)1.4%top 28.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A vulnerability, which was classified as critical, was found in c-blosc2 up to 2.13.2. Affected is the function ndlz8_decompress of the file /src/c-blosc2/plugins/codecs/ndlz/ndlz8x8.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.14.3 is able to address this issue. It is recommended to upgrade the affected component. VDB-259050 is the identifier assigned to this vulnerability.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13c-blosc22.13.1+ds-3DEBIAN-CVE-2024-3203
Debian:14c-blosc22.13.1+ds-3DEBIAN-CVE-2024-3203
Ubuntu:24.04:LTSc-blosc2no fix listedUBUNTU-CVE-2024-3203
Ubuntu:25.10c-blosc2no fix listedUBUNTU-CVE-2024-3203
Ubuntu:26.04:LTSc-blosc2no fix listedUBUNTU-CVE-2024-3203
Ubuntu:26.10c-blosc2no fix listedUBUNTU-CVE-2024-3203

Affected products (as reported)

VendorProductVersions
n/a c-blosc2 2.13.02.13.12.13.2

Weakness: CWE-122 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References