medium 5.3

CVE-2023-29479 json

Ribose RNP before 0.16.3 may hang when the input is malformed.

published 2023-04-24 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-33047

cvss: 5.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits: 0; none known

Patch / fix

fixed in 1 distros 7

ribose rnp 0.16.3

debian ubuntu red hat suse opensuse almalinux rocky linux

rnp Debian 14, Debian 13, Debian 12 0.16.3-1
thunderbird Debian 14, Debian 13, Debian 12 1:102.10.0-1

debian advisories DEBIAN-CVE-2023-29479

thunderbird Ubuntu 18.04 LTS 1:102.10.0+build2-0ubuntu0.18.04.1
thunderbird Ubuntu 20.04 LTS 1:102.10.0+build2-0ubuntu0.20.04.1
thunderbird Ubuntu 22.04 LTS 1:102.10.0+build2-0ubuntu0.22.04.1

ubuntu advisories UBUNTU-CVE-2023-29479

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

thunderbird RHEL 8 102.10.0-2.el8_7
thunderbird RHEL 9 102.10.0-2.el9_1
thunderbird RHEL 7 102.10.0-2.el7_9
thunderbird RHEL 8.1 E4S 102.10.0-2.el8_1
thunderbird RHEL 9.0 EUS 102.10.0-2.el9_0
thunderbird RHEL 8.6 EUS 102.10.0-2.el8_6
thunderbird RHEL 8.4 EUS 102.10.0-2.el8_4
thunderbird RHEL 8.2 TUS, RHEL 8.2 E4S, RHEL 8.2 AUS 102.10.0-2.el8_2

red hat advisories RHSA-2023:1802 RHSA-2023:1803 RHSA-2023:1809 RHSA-2023:1810 RHSA-2023:1811 RHSA-2023:1804

MozillaThunderbird SLE Workstation Extension 15 SP4, SLE Module for Package Hub 15 SP4, openSUSE Leap 15.4 102.10.1-150200.8.113.2

suse advisories SUSE-SU-2023:2064-1

MozillaThunderbird openSUSE Tumbleweed 102.10.0-1.1

opensuse advisories openSUSE-SU-2024:12852-1

thunderbird AlmaLinux 8 102.10.0-2.el8_7.alma
thunderbird AlmaLinux 9 102.10.0-2.el9_1.alma

almalinux advisories ALSA-2023:1802 ALSA-2023:1809

thunderbird Rocky Linux 9 102.10.0-2.el9_1
thunderbird Rocky Linux 8 102.10.0-2.el8_7

rocky linux advisories RLSA-2023:1809 RLSA-2023:1802

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-2023-29479 updated 2026-11-07 cvss 6.5

Thunderbird: Hang when processing certain OpenPGP messages

Red Hat Enterprise Linux 6 thunderbird
affected: no fix planned “Out of support scope”
Red Hat Enterprise Linux AppStream (v. 8) thunderbird 102.10.0-2.el8_7
fixed: vendor fix RHSA-2023:1802
Red Hat Enterprise Linux AppStream (v. 9) thunderbird 102.10.0-2.el9_1
fixed: vendor fix RHSA-2023:1809
Red Hat Enterprise Linux AppStream AUS (v. 8.2) thunderbird 102.10.0-2.el8_2
fixed: vendor fix RHSA-2023:1805
Red Hat Enterprise Linux AppStream E4S (v. 8.1) thunderbird 102.10.0-2.el8_1
fixed: vendor fix RHSA-2023:1803
Red Hat Enterprise Linux AppStream E4S (v. 8.2) thunderbird 102.10.0-2.el8_2
fixed: vendor fix RHSA-2023:1805
Red Hat Enterprise Linux AppStream EUS (v.8.4) thunderbird 102.10.0-2.el8_4
fixed: vendor fix RHSA-2023:1804
Red Hat Enterprise Linux AppStream EUS (v.8.6) thunderbird 102.10.0-2.el8_6
fixed: vendor fix RHSA-2023:1811

show 3 more

Red Hat Enterprise Linux AppStream EUS (v.9.0) thunderbird 102.10.0-2.el9_0
fixed: vendor fix RHSA-2023:1810
Red Hat Enterprise Linux AppStream TUS (v. 8.2) thunderbird 102.10.0-2.el8_2
fixed: vendor fix RHSA-2023:1805
Red Hat Enterprise Linux Client (v. 7) thunderbird 102.10.0-2.el7_9 Red Hat Enterprise Linux Server Optional (v. 7) thunderbird 102.10.0-2.el7_9 Red Hat Enterprise Linux Workstation (v. 7) thunderbird 102.10.0-2.el7_9
fixed: vendor fix RHSA-2023:1806

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 SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 21 mo ago (2025-02-04)

Exploit prediction

0.90% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CISA ADP	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CNA	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Classification

Weakness

CWE-770 Allocation of Resources Without Limits or Throttling
CWE-400 Uncontrolled Resource Consumption

References

cve.ribose.com /advisories/ra-2023-04-11/
vendor-advisory
rnpgp.org /blog/2023-04-13-rnp-release-0-16-3/
release-notes
open.ribose.com /advisories/ra-2023-04-11/

Sources

CVE List CVE-2023-29479
NVD CVE-2023-29479

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.

Summary