CVE-2022-42324

Katalog CVE

CVSS 5.5 · Medium EPSS 0,29%

Kerentanan Incorrect Conversion between Numeric Types pada xen, debian linux +1 lainnya. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

Oxenstored 32->31 bit integer truncation issues Integers in Ocaml are 63 or 31 bits of signed precision. The Ocaml Xenbus library takes a C uint32_t out of the ring and casts it directly to an Ocaml integer. In 64-bit Ocaml builds this is fine, but in 32-bit builds, it truncates off the most significant bit, and then creates unsigned/signed confusion in the remainder. This in turn can feed a negative value into logic not expecting a negative value, resulting in unexpected exceptions being thrown. The unexpected exception is not handled suitably, creating a busy-loop trying (and failing) to take the bad packet out of the xenstore ring.

Rincian

Terbit di NVD

1 November 2022

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

5.5 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-681: Incorrect Conversion between Numeric Types

EPSS (30 hari)

0,29% peluang dieksploitasi; lebih tinggi dari 19,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• http://xenbits.xen.org/xsa/advisory-420.html patch · advisory vendor
• https://xenbits.xenproject.org/xsa/advisory-420.txt patch · advisory vendor
• http://www.openwall.com/lists/oss-security/2022/11/01/10 mailing list · patch · advisory pihak ketiga
• https://www.debian.org/security/2022/dsa-5272 advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YTMITQBGC23MS...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6...
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZLI2NPNEH7CNJ...
• https://security.gentoo.org/glsa/202402-07