CVE-2023-29479: ribose rnp Uncontrolled Resource Consumption
CVSS: 5.3v3.1MediumModified
AliasesUBUNTU-CVE-2023-29479DEBIAN-CVE-2023-29479
Published 24-04-2023Last modified 21-11-2025
Vulnerability summary
CVE-2023-29479 is a medium (CVSS 5.3) Uncontrolled Resource Consumption vulnerability in ribose rnp. EPSS estimates a 0.90% chance of exploitation in the next 30 days, higher than 58.9% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.1 (CVE.org)EPSS score
0.90%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 14 · Related 3Timeline
- 24-04-2023PublishedVulnerability first disclosed.
- 21-11-2025Last modifiedVulnerability information updated.
Description
Ribose RNP before 0.16.3 may hang when the input is malformed.
CVSS metrics
4 scores · 4 sources · 1 versionMedium 5.3Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LSourcesAll 4 agree
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- NVDNIST5.3MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS trend
Probability
0.90%
Chance of exploitation in the next 30 days
Percentile
59%
Versus all other CVEs
30-day change
0.00 pp
From 0.90% on 18-09-2026
18-09-202618-10-2026
EPSS score0.90%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.
- CWE-770Allocation of Resources Without Limits or ThrottlingThe product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
Affected systems
Debian2 products
- rnp< 0.16.3-1
- thunderbird< 1:102.10.0-1
Ribose1 product
- rnp< 0.16.3
Ubuntu1 product
- thunderbird< 1:102.10.0+build2-0ubuntu0.18.04.1 | < 1:102.10.0+build2-0ubuntu0.20.04.1 | < 1:102.10.0+build2-0ubuntu0.22.04.1
3 vendors · 4 products
References
8 links- www.rnpgp.org/blog/2023-04-13-rnp-release-0-16-3/Release Notes
- cve.ribose.com/advisories/ra-2023-04-11/Vendor Advisory
