CVE-2024-34055

cyrus-imapd: unbounded memory allocation by sending many LITERALs in a single command

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

Cyrus IMAP before 3.8.3 and 3.10.x before 3.10.0-rc1 allows authenticated attackers to cause unbounded memory allocation by sending many LITERALs in a single command.

Cyrus IMAP anterior a 3.8.3 y 3.10.x anterior a 3.10.0-rc1 permite a atacantes autenticados provocar una asignación de memoria ilimitada enviando muchos LITERAL en un solo comando.

A flaw was found in Cyrus IMAP before versions 3.8.3 and 3.10.x , and before 3.10.0-rc1. This flaw allows authenticated attackers to cause unbounded memory allocation by sending multiple LITERALs in a single command.

*Credits: N/A

CVSS Scores

NISTv3.1 6.5

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-04-30 CVE Reserved
2024-06-05 CVE Published
2024-06-14 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-770: Allocation of Resources Without Limits or Throttling

CAPEC

References (7)

URL	Tag	Source
https://www.cyrusimap.org/dev/imap/download/release-notes/3.10/x/3.10.0-rc1.html	Release Notes
https://www.cyrusimap.org/imap/download/release-notes/3.8/x/3.8.3.html	Release Notes

URL	Date	SRC

URL	Date	SRC
https://github.com/cyrusimap/cyrus-imapd/commit/ef9e4e8314d6a06f2269af0ccf606894cc3fe489	2024-06-14

URL	Date	SRC
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CJZQAE3XC2GBCE5KSTWJ5A6QYANFWGFB	2024-06-14
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WVZHUZDU4MGTTZJRNACTMSKXLNMMRLJ6	2024-06-14
https://access.redhat.com/security/cve/CVE-2024-34055	2024-11-12
https://bugzilla.redhat.com/show_bug.cgi?id=2290510	2024-11-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cyrusimap Search vendor "Cyrusimap"		Cyrus Imap Search vendor "Cyrusimap" for product "Cyrus Imap"				< 3.8.3 Search vendor "Cyrusimap" for product "Cyrus Imap" and version " < 3.8.3"		-		Affected
Cyrusimap Search vendor "Cyrusimap"		Cyrus Imap Search vendor "Cyrusimap" for product "Cyrus Imap"				3.10.0 Search vendor "Cyrusimap" for product "Cyrus Imap" and version "3.10.0"		alpha0		Affected
Cyrusimap Search vendor "Cyrusimap"		Cyrus Imap Search vendor "Cyrusimap" for product "Cyrus Imap"				3.10.0 Search vendor "Cyrusimap" for product "Cyrus Imap" and version "3.10.0"		beta1		Affected
Cyrusimap Search vendor "Cyrusimap"		Cyrus Imap Search vendor "Cyrusimap" for product "Cyrus Imap"				3.10.0 Search vendor "Cyrusimap" for product "Cyrus Imap" and version "3.10.0"		beta2		Affected