PT-2022-26366 · Unknown · Oxenstored

Jürgen Groß · Published 2022-11-01 · Updated 2024-02-04 · CVE-2022-42324

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Oxenstored versions 32-bit builds

Description The issue arises from the Ocaml Xenbus library taking a C uint32 t out of the ring and casting it directly to an Ocaml integer. In 32-bit builds, this causes a truncation of the most significant bit, leading to unsigned/signed confusion. As a result, a negative value can be fed into logic that does not expect it, causing unexpected exceptions. These exceptions are not handled properly, resulting in a busy-loop that attempts to remove a bad packet from the xenstore ring.

Recommendations For 32-bit builds of Oxenstored, consider applying a patch that correctly handles the casting of C uint32 t to Ocaml integers to prevent integer truncation issues. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-681

Related Identifiers

CVE-2022-42324

DSA-5272-1

Affected Products

Oxenstored

References · 21

• https://debian.org/security/2022/dsa-5272 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2022-42324 · Security Note
• https://osv.dev/vulnerability/DSA-5272-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-42324 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-42324 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-42324 · Vendor Advisory
• https://security.gentoo.org/glsa/202402-07 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJO3VZGQNOI4M4EWLNKPZ · Vendor Advisory
• http://openwall.com/lists/oss-security/2022/11/01/10 · Patch
• https://security-tracker.debian.org/tracker/CVE-2022-42324 · Vendor Advisory
• http://xenbits.xen.org/xsa/advisory-420.html · Vendor Advisory
• https://xenbits.xenproject.org/xsa/advisory-420.txt · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-42324 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MSDHUCAPCVGLMVXIBXQTQ · Vendor Advisory