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CVE-2023-46853

Publication date 27 October 2023

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

9.8 · Critical

Score breakdown

In Memcached before 1.6.22, an off-by-one error exists when processing proxy requests in proxy mode, if \n is used instead of \r\n.

Read the notes from the security team

Status

Package Ubuntu Release Status
memcached 24.04 LTS noble
Not affected
23.10 mantic
Fixed 1.6.21-1ubuntu0.23.10.1
23.04 lunar
Fixed 1.6.18-1ubuntu0.1
22.04 LTS jammy
Fixed 1.6.14-1ubuntu0.1
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Ignored

Notes

mdeslaur

proxy was introduced in 1.6.13

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
memcached

Severity score breakdown

Parameter Value
Base score 9.8 · Critical
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-6476-1
    • Memcached vulnerabilities
    • 13 November 2023

Other references