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ApacheCVELIST:CVE-2023-43826

HistoryDec 19, 2023 - 7:50 p.m.

CVE-2023-43826 Apache Guacamole: Integer overflow in handling of VNC image buffers

2023-12-1919:50:15

CWE-190

apache

www.cve.org

cve-2023-43826

apache guacamole

integer overflow

vnc

memory corruption

arbitrary code execution

security update

0 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N

9.1 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

55.7%

JSON

Apache Guacamole 1.5.3 and older do not consistently ensure that values received from a VNC server will not result in integer overflow. If a user connects to a malicious or compromised VNC server, specially-crafted data could result in memory corruption, possibly allowing arbitrary code to be executed with the privileges of the running guacd process.

Users are recommended to upgrade to version 1.5.4, which fixes this issue.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Apache Guacamole",
    "vendor": "Apache Software Foundation",
    "versions": [
      {
        "lessThanOrEqual": "1.5.3",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      }
    ]
  }
]

References

www.openwall.com/lists/oss-security/2023/12/19/4

lists.apache.org/thread/23gzwftpfgtq97tj6ttmbclry53kmwv6

0 Low

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N

9.1 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

55.7%

JSON

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