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Fencer Vulns
medium 6.5

CVE-2023-6129 json

POLY1305 MAC implementation corrupts vector registers on PowerPC

published 2024-01-09 2 y ago modified 2026-10-14 25 d ago also EUVD-2023-58384 , GHSA-rj8q-prqp-jwfg , JLSEC-2026-245

cvss
6.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.3%
EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

Issue summary: The POLY1305 MAC (message authentication code) implementation contains a bug that might corrupt the internal state of applications running on PowerPC CPU based platforms if the CPU provides vector instructions.

Impact summary: If an attacker can influence whether the POLY1305 MAC algorithm is used, the application state might be corrupted with various application dependent consequences.

The POLY1305 MAC (message authentication code) implementation in OpenSSL for PowerPC CPUs restores the contents of vector registers in a different order than they are saved. Thus the contents of some of these vector registers are corrupted when returning to the caller. The vulnerable code is used only on newer PowerPC processors supporting the PowerISA 2.07 instructions.

The consequences of this kind of internal application state corruption can be various - from no consequences, if the calling application does not depend on the contents of non-volatile XMM registers at all, to the worst consequences, where the attacker could get complete control of the application process. However unless the compiler uses the vector registers for storing pointers, the most likely consequence, if any, would be an incorrect result of some application dependent calculations or a crash leading to a denial of service.

The POLY1305 MAC algorithm is most frequently used as part of the CHACHA20-POLY1305 AEAD (authenticated encryption with associated data) algorithm. The most common usage of this AEAD cipher is with TLS protocol versions 1.2 and 1.3. If this cipher is enabled on the server a malicious client can influence whether this AEAD cipher is used. This implies that TLS server applications using OpenSSL can be potentially impacted. However we are currently not aware of any concrete application that would be affected by this issue therefore we consider this a Low severity security issue.

Patch / fix

  • julia OpenSSL_jll 3.0.13+0
  • OpenSSL OpenSSL 3.0.13, 3.1.5, 3.2.1
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem V1.1.1
  • Siemens SINEC NMS V3.0 SP1
  • openssl Debian 12 3.0.13-1~deb12u1
  • openssl Debian 14, Debian 13 3.1.5-1

debian advisories DEBIAN-CVE-2023-6129

  • openssl Ubuntu 22.04 LTS 3.0.2-0ubuntu1.14
  • openssl Ubuntu 24.04 LTS 3.0.10-1ubuntu4
  • openssl Ubuntu Pro FIPS-updates 22.04 LTS 3.0.2-0ubuntu1.14+Fips1

ubuntu advisories UBUNTU-CVE-2023-6129

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • edk2 RHEL 9 20240524-6.el9_5
  • edk2-ovmf RHEL 9 20240524-6.el9_5
  • edk2-tools RHEL 9 20240524-6.el9_5
  • edk2-aarch64 RHEL 9 20240524-6.el9_5
  • openssl RHEL 9 1:3.0.7-27.el9
  • openssl-libs RHEL 9 1:3.0.7-27.el9
  • openssl-perl RHEL 9 1:3.0.7-27.el9

red hat advisories RHSA-2024:9088RHSA-2024:2447

  • openssl-3 SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE Micro 5.4 +7 more 3.0.8-150400.4.49.1
  • openssl-3 SLE Module for Basesystem 15 SP5, openSUSE Leap 15.5 3.0.8-150500.5.24.1

suse advisories SUSE-SU-2024:0518-1SUSE-SU-2024:0172-1

  • openssl-3 openSUSE Tumbleweed 3.1.4-3.1

opensuse advisories openSUSE-SU-2024:13633-1

  • edk2-ovmf AlmaLinux 9 20240524-6.el9_5
  • edk2-tools AlmaLinux 9 20240524-6.el9_5
  • edk2-aarch64 AlmaLinux 9 20240524-6.el9_5
  • openssl AlmaLinux 9 1:3.0.7-27.el9
  • openssl-libs AlmaLinux 9 1:3.0.7-27.el9
  • openssl-perl AlmaLinux 9 1:3.0.7-27.el9

almalinux advisories ALSA-2024:9088ALSA-2024:2447

  • edk2 Rocky Linux 9 20240524-6.el9_5.3

rocky linux advisories RLSA-2024:9088

  • openssl Alpine 3.17 3.0.12-r2
  • openssl Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 3.1.4-r3

alpine advisories ALPINE-CVE-2023-6129

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • nodejs Azure Linux 3.0 20.14.0-1
  • openssl Azure Linux 3.0 3.3.0-1
  • cloud-hypervisor-cvm CBL-Mariner 2.0, Azure Linux 3.0 38.0.72.2-1
  • hvloader CBL-Mariner 2.0 1.0.1-6

azure linux advisories AZL-35044AZL-35085AZL-42697AZL-42754AZL-47643

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-6129 updated cvss 6.5

openssl: POLY1305 MAC implementation corrupts vector registers on PowerPC

  • Red Hat Enterprise Linux 6 openssl, openssl-perl Red Hat Enterprise Linux 7 ovmf, OVMF, AAVMF, openssl, openssl-libs, openssl-perl
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 mecab, mysql, mysql-libs, mysql-test, mecab-ipadic, mysql-common, +4 more Red Hat Enterprise Linux 9 mysql, mysql-libs, mysql-test, mysql-common, mysql-errmsg, mysql-server Red Hat Enterprise Linux 10 mysql8.0
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Software Collections rh-mysql80-mysql, rh-mysql80-mysql-test, rh-mysql80-mysql-common, rh-mysql80-mysql-config, rh-mysql80-mysql-errmsg, rh-mysql80-mysql-server, +4 more
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder (v. 9) edk2-ovmf 20240524-6.el9_5, edk2-tools 20240524-6.el9_5, edk2-aarch64 20240524-6.el9_5
    fixed: vendor fix RHSA-2024:9088
  • Red Hat Enterprise Linux AppStream (v. 9) edk2 20240524-6.el9_5, openssl-perl 3.0.7-27.el9, edk2-ovmf 20240524-6.el9_5, edk2-aarch64 20240524-6.el9_5 Red Hat Enterprise Linux BaseOS (v. 9) openssl 3.0.7-27.el9, openssl-libs 3.0.7-27.el9
    fixed: vendor fix RHSA-2024:2447
  • Red Hat Enterprise Linux 6 mysql, mysql-libs, mysql-test, mysql-bench, mysql-server, mysql-embedded Red Hat Enterprise Linux 7 mariadb, mariadb-libs, mariadb-test, mariadb-bench, mariadb-server, mariadb-embedded Red Hat Enterprise Linux 8 edk2, Judy, shim, galera, mariadb, openssl, +19 more Red Hat Enterprise Linux 9 shim, mariadb, shim-x64, shim-aa64, mariadb-pam, mariadb-test, +10 more Red Hat Enterprise Linux 10 mariadb10.11 Red Hat Enterprise Linux BaseOS (v. 9) openssl-fips-provider 3.0.7-2.el9
    +3 more products
    Red Hat JBoss Core Services jbcs-httpd24-openssl Red Hat JBoss Web Server 5 openssl Red Hat Software Collections rh-mariadb105-mariadb, rh-mariadb105-mariadb-pam, rh-mariadb105-mariadb-libs, rh-mariadb105-mariadb-test, rh-mariadb105-mariadb-backup, rh-mariadb105-mariadb-common, +14 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-24-102-01 updated cvss 6.5

Siemens SIMATIC S7-1500 TM MFP

  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
    affected: mitigation, no fix available

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-25-044-09 updated cvss 6.5

Siemens SCALANCE W700 IEEE 802.11ax

  • Siemens SCALANCE WAB762-1 (6GK5762-1AJ00-6AA0) <V3.0.0 Siemens SCALANCE WAM763-1 (6GK5763-1AL00-7DA0) <V3.0.0 Siemens SCALANCE WAM763-1 (ME) (6GK5763-1AL00-7DC0) <V3.0.0 Siemens SCALANCE WAM763-1 (US) (6GK5763-1AL00-7DB0) <V3.0.0 Siemens SCALANCE WAM766-1 (6GK5766-1GE00-7DA0) <V3.0.0 Siemens SCALANCE WAM766-1 (ME) (6GK5766-1GE00-7DC0) <V3.0.0
    +13 more products
    Siemens SCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (6GK5766-1GE00-7TA0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (ME) (6GK5766-1GE00-7TC0) <V3.0.0 Siemens SCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0) <V3.0.0 Siemens SCALANCE WUB762-1 (6GK5762-1AJ00-1AA0) <V3.0.0 Siemens SCALANCE WUB762-1 iFeatures (6GK5762-1AJ00-2AA0) <V3.0.0 Siemens SCALANCE WUM763-1 (6GK5763-1AL00-3AA0) <V3.0.0 Siemens SCALANCE WUM763-1 (6GK5763-1AL00-3DA0) <V3.0.0 Siemens SCALANCE WUM763-1 (US) (6GK5763-1AL00-3AB0) <V3.0.0 Siemens SCALANCE WUM763-1 (US) (6GK5763-1AL00-3DB0) <V3.0.0 Siemens SCALANCE WUM766-1 (6GK5766-1GE00-3DA0) <V3.0.0 Siemens SCALANCE WUM766-1 (ME) (6GK5766-1GE00-3DC0) <V3.0.0 Siemens SCALANCE WUM766-1 (USA) (6GK5766-1GE00-3DB0) <V3.0.0
    affected: fixed in V3.0.0 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
2 y ago

Exploit prediction

2.32% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
OSV 3.1 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H

Affected packages

ecosystem package affected fixed in
julia OpenSSL_jll
>=3.0.8+0, <3.0.13+0
3.0.13+0

Affected products

  • OpenSSL OpenSSL
  • Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem
  • Siemens SINEC NMS

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Improve version ranges to indicate fix.