
CVE catalog
CVE-2023-0361
A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a networ
- Severity
- High · CVSS 7.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 1.45% · Oct 25, 2026
A timing side-channel in the handling of RSA ClientKeyExchange messages was discovered in GnuTLS. This side-channel can be sufficient to recover the key encrypted in the RSA ciphertext across a network in a Bleichenbacher style attack. To achieve a successful decryption the attacker would need to send a large amount of specially crafted messages to the vulnerable server. By recovering the secret from the ClientKeyExchange message, the attacker would be able to decrypt the application data exchanged over that connection.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | gnutls28 | sid | 3.8.13-1 | fixed |
| Debian | gnutls28 | forky | 3.8.13-1 | fixed |
| Debian | gnutls28 | trixie | 3.8.9-3+deb13u4 | fixed |
| Debian | gnutls28 | trixie-security | 3.8.9-3+deb13u4 | fixed |
| Debian | gnutls28 | bookworm | 3.7.9-2+deb12u7 | fixed |
| Debian | gnutls28 | bookworm-security | 3.7.9-2+deb12u7 | fixed |
| Cpe | gnutls | Not reported | Not reported | unknown |
| Cpe | enterprise_linux | Not reported | Not reported | unknown |
| Cpe | enterprise_linux | Not reported | Not reported | unknown |
| Cpe | debian_linux | Not reported | Not reported | unknown |
| Cpe | fedora | Not reported | Not reported | unknown |
| Cpe | fedora | Not reported | Not reported | unknown |
| Cpe | fedora | Not reported | Not reported | unknown |
| Cpe | active_iq_unified_manager | Not reported | Not reported | unknown |
| Cpe | converged_systems_advisor_agent | Not reported | Not reported | unknown |
| Cpe | ontap_select_deploy_administration_utility | Not reported | Not reported | unknown |
| Alpine | gnutls | 3.14 | 3.7.1-r2 | fixed |
| Alpine | gnutls | 3.15 | 3.7.1-r2 | fixed |
| Alpine | gnutls | 3.16 | 3.7.7-r1 | fixed |
| Alpine | gnutls | 3.17 | 3.7.8-r3 | fixed |
| Alpine | gnutls | 3.18 | 3.8.0-r0 | fixed |
| Alpine | gnutls | 3.19 | 3.8.0-r0 | fixed |
| Alpine | gnutls | 3.20 | 3.8.0-r0 | fixed |
| Alpine | gnutls | 3.21 | 3.8.0-r0 | fixed |
| Alpine | gnutls | 3.22 | 3.8.0-r0 | fixed |
| Alpine | gnutls | 3.23 | 3.8.0-r0 | fixed |
| Alpine | gnutls | 3.24 | 3.8.0-r0 | fixed |
| Ubuntu | gnutls28 | pro | 3.5.8-6ubuntu3 | vulnerable |
| Ubuntu | gnutls28 | pro | 3.5.17-1ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | pro | 3.5.17-1ubuntu3 | vulnerable |
| Ubuntu | gnutls28 | pro | 3.5.18-1ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | pro | 3.5.18-1ubuntu1.1 | vulnerable |
| Ubuntu | gnutls28 | pro | 3.5.18-1ubuntu1.2 | vulnerable |
| Ubuntu | gnutls28 | pro | 3.5.18-1ubuntu1.3 | vulnerable |
| Ubuntu | gnutls28 | pro | 3.5.18-1ubuntu1.4 | vulnerable |
| Ubuntu | gnutls28 | pro | 3.5.18-1ubuntu1.5 | vulnerable |
| Ubuntu | gnutls28 | pro | 3.5.18-1ubuntu1.6 | vulnerable |
| Ubuntu | gnutls28 | pro | 3.5.18-1ubuntu1.6+esm1 | vulnerable |
| Ubuntu | gnutls28 | pro | 3.5.18-1ubuntu1.6+esm2 | vulnerable |
| Ubuntu | gnutls28 | pro | 3.5.18-1ubuntu1.6+esm3 | vulnerable |
| Ubuntu | gnutls28 | pro | 3.5.18-1ubuntu1.6+esm4 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.9-5ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.9-5ubuntu2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.10-5 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.11.1-2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.11.1-2ubuntu2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.1 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.3 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.6 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.7 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.8 | fixed |
| Ubuntu | gnutls28 | 22.04 | 3.7.1-5ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.2-2ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.2-4ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.2-5ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.2 | fixed |
| Ubuntu | gnutls28 | 20.04 | 3.6.9-5ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.9-5ubuntu2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.10-5 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.11.1-2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.11.1-2ubuntu2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.1 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.2 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.3 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.6 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.7 | vulnerable |
| Ubuntu | gnutls28 | 20.04 | 3.6.13-2ubuntu1.8 | fixed |
| Ubuntu | gnutls28 | 22.04 | 3.7.1-5ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.2-2ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.2-4ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.2-5ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.1 | vulnerable |
| Ubuntu | gnutls28 | 22.04 | 3.7.3-4ubuntu1.2 | fixed |
| Suse | gnutls | linux enterprise real time 15 sp3 | 3.6.7-150200.14.25.2 | fixed |
| Suse | gnutls | linux enterprise micro 5.1 | 3.6.7-150200.14.25.2 | fixed |
| Suse | gnutls | linux enterprise micro 5.2 | 3.6.7-150200.14.25.2 | fixed |
| Suse | gnutls | linux enterprise module for basesystem 15 sp4 | 3.7.3-150400.4.27.1 | fixed |
| Opensuse | gnutls | leap 15.4 | 3.7.3-150400.4.27.1 | fixed |
| Opensuse | gnutls | tumbleweed | 3.7.9-1.2 | fixed |
| Suse | gnutls | linux enterprise micro 5.3 | 3.7.3-150400.1.3.1 | fixed |
| Suse | gnutls | linux enterprise high performance computing 15 sp1-ltss | 3.6.7-150000.6.50.1 | fixed |
| Suse | gnutls | linux enterprise server 15 sp1-ltss | 3.6.7-150000.6.50.1 | fixed |
| Suse | gnutls | linux enterprise server for sap applications 15 sp1 | 3.6.7-150000.6.50.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | gnutls28 | source | sid | 3.7.8-5 | not yet assigned | Not reported | Not reported |
| Debian | gnutls28 | source | forky | 3.7.8-5 | not yet assigned | Not reported | Not reported |
| Debian | gnutls28 | source | trixie | 3.7.8-5 | not yet assigned | Not reported | Not reported |
| Debian | gnutls28 | source | bookworm | 3.7.8-5 | not yet assigned | Not reported | Not reported |
| Alpine | gnutls | apk | 3.14 | 3.7.1-r2 | Not reported | ALPINE-CVE-2023-0361 | Not reported |
| Alpine | gnutls | apk | 3.15 | 3.7.1-r2 | Not reported | ALPINE-CVE-2023-0361 | Not reported |
| Alpine | gnutls | apk | 3.16 | 3.7.7-r1 | Not reported | ALPINE-CVE-2023-0361 | Not reported |
| Alpine | gnutls | apk | 3.17 | 3.7.8-r3 | Not reported | ALPINE-CVE-2023-0361 | Not reported |
| Alpine | gnutls | apk | 3.18 | 3.8.0-r0 | Not reported | ALPINE-CVE-2023-0361 | Not reported |
| Alpine | gnutls | apk | 3.19 | 3.8.0-r0 | Not reported | ALPINE-CVE-2023-0361 | Not reported |
| Alpine | gnutls | apk | 3.20 | 3.8.0-r0 | Not reported | ALPINE-CVE-2023-0361 | Not reported |
| Alpine | gnutls | apk | 3.21 | 3.8.0-r0 | Not reported | ALPINE-CVE-2023-0361 | Not reported |
| Alpine | gnutls | apk | 3.22 | 3.8.0-r0 | Not reported | ALPINE-CVE-2023-0361 | Not reported |
| Alpine | gnutls | apk | 3.23 | 3.8.0-r0 | Not reported | ALPINE-CVE-2023-0361 | Not reported |
| Alpine | gnutls | apk | 3.24 | 3.8.0-r0 | Not reported | ALPINE-CVE-2023-0361 | Not reported |
| Ubuntu | gnutls28 | deb | 20.04 | 3.6.13-2ubuntu1.8 | Not reported | UBUNTU-CVE-2023-0361 | Not reported |
| Ubuntu | gnutls28 | deb | 22.04 | 3.7.3-4ubuntu1.2 | Not reported | UBUNTU-CVE-2023-0361 | Not reported |
| Ubuntu | gnutls28 | deb | 20.04 | 3.6.13-2ubuntu1.8 | Not reported | USN-5901-1 | Not reported |
| Ubuntu | gnutls28 | deb | 22.04 | 3.7.3-4ubuntu1.2 | Not reported | USN-5901-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise real time 15 sp3 | 3.6.7-150200.14.25.2 | Not reported | SUSE-SU-2023:0610-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise micro 5.1 | 3.6.7-150200.14.25.2 | Not reported | SUSE-SU-2023:0610-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise micro 5.2 | 3.6.7-150200.14.25.2 | Not reported | SUSE-SU-2023:0610-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise module for basesystem 15 sp4 | 3.7.3-150400.4.27.1 | Not reported | SUSE-SU-2023:0475-1 | Not reported |
| Opensuse | gnutls | rpm | leap 15.4 | 3.7.3-150400.4.27.1 | Not reported | SUSE-SU-2023:0475-1 | Not reported |
| Opensuse | gnutls | rpm | tumbleweed | 3.7.9-1.2 | Not reported | OPENSUSE-SU-2024:12699-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise micro 5.3 | 3.7.3-150400.1.3.1 | Not reported | SUSE-SU-2024:1179-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise high performance computing 15 sp1-ltss | 3.6.7-150000.6.50.1 | Not reported | SUSE-SU-2023:4952-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise server 15 sp1-ltss | 3.6.7-150000.6.50.1 | Not reported | SUSE-SU-2023:4952-1 | Not reported |
| Suse | gnutls | rpm | linux enterprise server for sap applications 15 sp1 | 3.6.7-150000.6.50.1 | Not reported | SUSE-SU-2023:4952-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [gnutls-bin]Unknown
Source package: [gnutls28]
Details (4)
3.7.9-2+deb12u7· amd64 · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· arm64 · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· amd64 · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· arm64 · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
- [gnutls-doc]Unknown
Source package: [gnutls28]
Details (4)
3.7.9-2+deb12u7· all · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· all · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· all · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· all · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
- [guile-gnutls]Unknown
Source package: [gnutls28]
Details (4)
3.7.9-2+deb12u7· amd64 · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· arm64 · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· amd64 · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· arm64 · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
- [libgnutls28-dev]Unknown
Source package: [gnutls28]
Details (4)
3.7.9-2+deb12u7· amd64 · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· arm64 · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· amd64 · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· arm64 · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
- [libgnutls30]Unknown
Source package: [gnutls28]
Details (4)
3.7.9-2+deb12u7· amd64 · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· arm64 · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· amd64 · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· arm64 · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
- [libgnutls-dane0]Unknown
Source package: [gnutls28]
Details (4)
3.7.9-2+deb12u7· amd64 · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· arm64 · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· amd64 · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· arm64 · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
- [libgnutls-openssl27]Unknown
Source package: [gnutls28]
Details (4)
3.7.9-2+deb12u7· amd64 · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· arm64 · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· amd64 · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· arm64 · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
- [libgnutlsxx30]Unknown
Source package: [gnutls28]
Details (4)
3.7.9-2+deb12u7· amd64 · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· arm64 · bookwormFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· amd64 · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
3.7.9-2+deb12u7· arm64 · bookworm-securityFixed · Fixed:
3.7.8-5nvd · gnutls28 · debian · bookworm
[openSUSE Tumbleweed]
- [gnutls]Unknown
Source package: [gnutls]
Details (1)
3.8.13-3.1· x86_64 · tumbleweedFixed · Fixed:
3.7.9-1.2nvd · gnutls · opensuse · tumbleweed
- [libgnutls30]Unknown
Source package: [gnutls]
Details (1)
3.8.13-3.1· x86_64 · tumbleweedUnknown · Fixed:
3.7.9-1.2Version impact unknown
nvd · gnutls · opensuse · tumbleweed
- [libgnutls30-32bit]Unknown
Source package: [gnutls]
Details (1)
3.8.13-3.1· x86_64 · tumbleweedUnknown · Fixed:
3.7.9-1.2Version impact unknown
nvd · gnutls · opensuse · tumbleweed
- [libgnutls-dane0]Unknown
Source package: [gnutls]
Details (1)
3.8.13-3.1· x86_64 · tumbleweedUnknown · Fixed:
3.7.9-1.2Version impact unknown
nvd · gnutls · opensuse · tumbleweed
- [libgnutls-dane-devel]Unknown
Source package: [gnutls]
Details (1)
3.8.13-3.1· x86_64 · tumbleweedUnknown · Fixed:
3.7.9-1.2Version impact unknown
nvd · gnutls · opensuse · tumbleweed
- [libgnutls-devel]Unknown
Source package: [gnutls]
Details (1)
3.8.13-3.1· x86_64 · tumbleweedUnknown · Fixed:
3.7.9-1.2Version impact unknown
nvd · gnutls · opensuse · tumbleweed
- [libgnutls-devel-32bit]Unknown
Source package: [gnutls]
Details (1)
3.8.13-3.1· x86_64 · tumbleweedUnknown · Fixed:
3.7.9-1.2Version impact unknown
nvd · gnutls · opensuse · tumbleweed
- [libgnutls-devel-doc]Unknown
Source package: [gnutls]
Details (1)
3.8.13-3.1· noarch · tumbleweedUnknown · Fixed:
3.7.9-1.2Version impact unknown
nvd · gnutls · opensuse · tumbleweed
- [libgnutlsxx30]Unknown
Source package: [gnutls]
Details (1)
3.8.13-3.1· x86_64 · tumbleweedUnknown · Fixed:
3.7.9-1.2Version impact unknown
nvd · gnutls · opensuse · tumbleweed
- [libgnutlsxx-devel]Unknown
Source package: [gnutls]
Details (1)
3.8.13-3.1· x86_64 · tumbleweedUnknown · Fixed:
3.7.9-1.2Version impact unknown
nvd · gnutls · opensuse · tumbleweed
Observed:
References
- [https://cert-portal.siemens.com/productcert/csaf/ssa-806742.json]
- [https://ftp.suse.com/pub/projects/security/csaf/rhsa-2023_1569.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2023-0361]
- [https://osv.dev/vulnerability/ALPINE-CVE-2023-0361]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-0361]
- [https://osv.dev/vulnerability/DLA-3321-1]
- [https://osv.dev/vulnerability/DSA-5349-1]
- [https://osv.dev/vulnerability/SUSE-SU-2023:0475-1]
- [https://osv.dev/vulnerability/SUSE-SU-2023:0610-1]
- [https://osv.dev/vulnerability/SUSE-SU-2023:4952-1]
- [https://osv.dev/vulnerability/SUSE-SU-2024:1179-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2023-0361]
- [https://osv.dev/vulnerability/USN-5901-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2024:12699-1]
- [https://security-tracker.debian.org/tracker/CVE-2023-0361]
- [https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-0361.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-0353.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]