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Vulnerability details: VCID-8urr-ks9n-zfag
Vulnerability ID VCID-8urr-ks9n-zfag
Aliases CVE-2023-29479
Summary Certain malformed OpenPGP messages could trigger incorrect parsing of PKESK/SKESK packets due to a bug in the Ribose RNP library used by Thunderbird up to version 102.9.1, which would cause the Thunderbird user interface to hang. The issue was discovered using Google's oss-fuzz.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (1)
CWE-400 Uncontrolled Resource Consumption
System Score Found at
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-29479.json
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00071 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
epss 0.00073 https://api.first.org/data/v1/epss?cve=CVE-2023-29479
cvssv3.1 5.3 https://cve.ribose.com/advisories/ra-2023-04-11/
ssvc Track https://cve.ribose.com/advisories/ra-2023-04-11/
cvssv3.1 5.3 https://nvd.nist.gov/vuln/detail/CVE-2023-29479
generic_textual high https://www.mozilla.org/en-US/security/advisories/mfsa2023-15
cvssv3.1 5.3 https://www.rnpgp.org/blog/2023-04-13-rnp-release-0-16-3/
ssvc Track https://www.rnpgp.org/blog/2023-04-13-rnp-release-0-16-3/
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-29479.json
https://api.first.org/data/v1/epss?cve=CVE-2023-29479
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-0547
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1945
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1999
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-28427
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29479
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29533
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29535
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29536
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29539
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29541
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29548
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-29550
1034558 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1034558
2023-04-13-rnp-release-0-16-3 https://www.rnpgp.org/blog/2023-04-13-rnp-release-0-16-3/
2186735 https://bugzilla.redhat.com/show_bug.cgi?id=2186735
cpe:2.3:a:ribose:rnp:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:ribose:rnp:*:*:*:*:*:*:*:*
CVE-2023-29479 https://nvd.nist.gov/vuln/detail/CVE-2023-29479
mfsa2023-15 https://www.mozilla.org/en-US/security/advisories/mfsa2023-15
ra-2023-04-11 https://cve.ribose.com/advisories/ra-2023-04-11/
RHSA-2023:1802 https://access.redhat.com/errata/RHSA-2023:1802
RHSA-2023:1803 https://access.redhat.com/errata/RHSA-2023:1803
RHSA-2023:1804 https://access.redhat.com/errata/RHSA-2023:1804
RHSA-2023:1805 https://access.redhat.com/errata/RHSA-2023:1805
RHSA-2023:1806 https://access.redhat.com/errata/RHSA-2023:1806
RHSA-2023:1809 https://access.redhat.com/errata/RHSA-2023:1809
RHSA-2023:1810 https://access.redhat.com/errata/RHSA-2023:1810
RHSA-2023:1811 https://access.redhat.com/errata/RHSA-2023:1811
USN-6015-1 https://usn.ubuntu.com/6015-1/
No exploits are available.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2023-29479.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://cve.ribose.com/advisories/ra-2023-04-11/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-02-04T21:00:39Z/ Found at https://cve.ribose.com/advisories/ra-2023-04-11/
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://nvd.nist.gov/vuln/detail/CVE-2023-29479
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://www.rnpgp.org/blog/2023-04-13-rnp-release-0-16-3/
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2025-02-04T21:00:39Z/ Found at https://www.rnpgp.org/blog/2023-04-13-rnp-release-0-16-3/
Exploit Prediction Scoring System (EPSS)
Percentile 0.22222
EPSS Score 0.00071
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:09:35.226177+00:00 Mozilla Importer Import https://github.com/mozilla/foundation-security-advisories/blob/master/announce/2023/mfsa2023-15.yml 37.0.0