PT-2024-4038 · Unknown+7 · Cyrus Imap+7

Damian Poddebniak · Published 2024-06-05 · Updated 2025-09-01 · CVE-2024-34055

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:L/Au:S/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Cyrus IMAP versions prior to 3.8.3 Cyrus IMAP versions 3.10.x prior to 3.10.0-rc1

Description The issue is related to a buffer overflow in memory, which can be exploited by sending several literals in a single command, potentially allowing a remote attacker to cause a denial of service. Authenticated attackers can cause unbounded memory allocation by sending many LITERALs in a single command.

Recommendations For Cyrus IMAP versions prior to 3.8.3, update to version 3.8.3 or later. For Cyrus IMAP versions 3.10.x prior to 3.10.0-rc1, update to version 3.10.0-rc1 or later. As a temporary workaround, consider restricting the number of LITERALs that can be sent in a single command to prevent unbounded memory allocation.

Fix

DoS

Buffer Overflow

Allocation of Resources Without Limits

Resource Exhaustion

Weakness Enumeration

CWE-119

CWE-770

CWE-400

Related Identifiers

ALSA-2024:9195

BDU:2024-04474

CVE-2024-34055

DSA-5708-1

INFSA-2024_9195

OPENSUSE-SU-2025:14968-1

RHSA-2024:9195

RHSA-2024_9195

RLSA-2024:9195

USN-7224-1

Affected Products

Almalinux

Cyrus Imap

Debian

Linuxmint

Red Hat

Red Os

Rocky Linux

Ubuntu

References · 47

• https://github.com/cyrusimap/cyrus-imapd/commit/ef9e4e8314d6a06f2269af0ccf606894cc3fe489 · Patch
• https://osv.dev/vulnerability/RLSA-2024:9195 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7224-1 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2024-9195.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2024-34055 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2024-34055 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2024:9195 · Vendor Advisory
• https://ubuntu.com/security/CVE-2019-18928 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2024-34055 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7224-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2024-34055 · Security Note
• https://ubuntu.com/security/CVE-2021-33582 · Vendor Advisory
• https://errata.almalinux.org/9/ALSA-2024-9195.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-34055 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CJZQAE3XC2GBCE5KSTWJ5A6QYANFWGFB · Vendor Advisory