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CVE-2023-1255

Published: 20 April 2023

Issue summary: The AES-XTS cipher decryption implementation for 64 bit ARM platform contains a bug that could cause it to read past the input buffer, leading to a crash. Impact summary: Applications that use the AES-XTS algorithm on the 64 bit ARM platform can crash in rare circumstances. The AES-XTS algorithm is usually used for disk encryption. The AES-XTS cipher decryption implementation for 64 bit ARM platform will read past the end of the ciphertext buffer if the ciphertext size is 4 mod 5 in 16 byte blocks, e.g. 144 bytes or 1024 bytes. If the memory after the ciphertext buffer is unmapped, this will trigger a crash which results in a denial of service. If an attacker can control the size and location of the ciphertext buffer being decrypted by an application using AES-XTS on 64 bit ARM, the application is affected. This is fairly unlikely making this issue a Low severity one.

Notes

AuthorNote
mdeslaur
3.x only

Priority

Low

Cvss 3 Severity Score

5.9

Score breakdown

Status

Package Release Status
edk2
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal Not vulnerable
(code not present)
jammy Not vulnerable
(code not present)
kinetic Not vulnerable
(code not present)
lunar Not vulnerable
(code not present)
mantic Not vulnerable
(code not present)
noble Not vulnerable
(code not present)
trusty Ignored
(end of standard support)
upstream Needs triage

xenial Not vulnerable
(code not present)
nodejs
Launchpad, Ubuntu, Debian
bionic Needs triage

focal Not vulnerable
(uses system openssl)
jammy Needed

kinetic Not vulnerable
(uses system openssl)
lunar Not vulnerable
(uses system openssl)
mantic Not vulnerable
(uses system openssl)
noble Not vulnerable
(uses system openssl)
trusty Not vulnerable
(uses system openssl)
upstream Needs triage

xenial Needs triage

openssl
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(3.x only)
focal Not vulnerable
(3.x only)
jammy
Released (3.0.2-0ubuntu1.10)
kinetic
Released (3.0.5-2ubuntu2.3)
lunar
Released (3.0.8-1ubuntu1.2)
mantic
Released (3.0.8-1ubuntu3)
noble
Released (3.0.8-1ubuntu3)
trusty Not vulnerable
(3.x only)
upstream Needs triage

xenial Not vulnerable
(3.x only)
Patches:
upstream: https://git.openssl.org/?p=openssl.git;a=commit;h=02ac9c9420275868472f33b01def01218742b8bb
openssl1.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(3.x only)
focal Does not exist

jammy Does not exist

kinetic Does not exist

lunar Does not exist

mantic Does not exist

noble Does not exist

trusty Does not exist

upstream Needs triage

xenial Does not exist

Severity score breakdown

Parameter Value
Base score 5.9
Attack vector Network
Attack complexity High
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H