CVE catalog
CVE-2016-9939
libcrypto++: CVE-2016-9939
- Severity
- High · CVSS 7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 4.20% · Oct 25, 2026
Crypto++ (aka cryptopp and libcrypto++) 5.6.4 contained a bug in its ASN.1 BER decoding routine. The library will allocate a memory block based on the length field of the ASN.1 object. If there is not enough content octets in the ASN.1 object, then the function will fail and the memory block will be zeroed even if its unused. There is a noticeable delay during the wipe for a large allocation.
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 | libcrypto++ | sid | 8.9.0-3 | fixed |
| Debian | libcrypto++ | forky | 8.9.0-3 | fixed |
| Debian | libcrypto++ | trixie | 8.9.0-2 | fixed |
| Debian | libcrypto++ | bookworm | 8.7.0+git220824-1 | fixed |
| Ubuntu | libcrypto++ | 14.04 | 5.6.1-6 | vulnerable |
| Ubuntu | libcrypto++ | 14.04 | 5.6.1-6+deb8u1build0.14.04.1 | vulnerable |
| Ubuntu | libcrypto++ | 14.04 | 5.6.1-6+deb8u3build0.14.04.1 | fixed |
| Ubuntu | libcrypto++ | 16.04 | 5.6.1-8 | vulnerable |
| Ubuntu | libcrypto++ | 16.04 | 5.6.1-9 | vulnerable |
| Ubuntu | libcrypto++ | 16.04 | 5.6.1-9ubuntu0.1 | fixed |
| Opensuse | libcryptopp | leap 15.3 | 5.6.5-1.6.1 | fixed |
| Suse | libcryptopp | linux enterprise module for basesystem 15 sp2 | 5.6.5-1.6.1 | fixed |
| Suse | libcryptopp | linux enterprise module for basesystem 15 sp3 | 5.6.5-1.6.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libcrypto++ | source | sid | 5.6.4-5 | not yet assigned | Not reported | [848009] |
| Debian | libcrypto++ | source | forky | 5.6.4-5 | not yet assigned | Not reported | [848009] |
| Debian | libcrypto++ | source | trixie | 5.6.4-5 | not yet assigned | Not reported | [848009] |
| Debian | libcrypto++ | source | bookworm | 5.6.4-5 | not yet assigned | Not reported | [848009] |
| Ubuntu | libcrypto++ | deb | 14.04 | 5.6.1-6+deb8u3build0.14.04.1 | Not reported | UBUNTU-CVE-2016-9939 | Not reported |
| Ubuntu | libcrypto++ | deb | 16.04 | 5.6.1-9ubuntu0.1 | Not reported | UBUNTU-CVE-2016-9939 | Not reported |
| Opensuse | libcryptopp | rpm | leap 15.3 | 5.6.5-1.6.1 | Not reported | OPENSUSE-SU-2021:3301-1 | Not reported |
| Suse | libcryptopp | rpm | linux enterprise module for basesystem 15 sp2 | 5.6.5-1.6.1 | Not reported | SUSE-SU-2021:3301-1 | Not reported |
| Suse | libcryptopp | rpm | linux enterprise module for basesystem 15 sp3 | 5.6.5-1.6.1 | Not reported | SUSE-SU-2021:3301-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libcrypto++8]Fixed
Source package: [libcrypto++]
Details (2)
8.7.0+git220824-1· amd64 · bookwormFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
8.7.0+git220824-1· arm64 · bookwormFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
- [libcrypto++-dev]Fixed
Source package: [libcrypto++]
Details (2)
8.7.0+git220824-1· amd64 · bookwormFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
8.7.0+git220824-1· arm64 · bookwormFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
- [libcrypto++-doc]Fixed
Source package: [libcrypto++]
Details (2)
8.7.0+git220824-1· all · bookwormFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
8.7.0+git220824-1· all · bookwormFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
- [libcrypto++-utils]Fixed
Source package: [libcrypto++]
Details (2)
8.7.0+git220824-1· amd64 · bookwormFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
8.7.0+git220824-1· arm64 · bookwormFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · bookworm; dsa · libcrypto++ · debian · 12
[Debian 13 (Trixie)]
- [libcrypto++8t64]Fixed
Source package: [libcrypto++]
Details (2)
8.9.0-2· amd64 · trixieFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · 13
8.9.0-2· arm64 · trixieFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · 13
- [libcrypto++-dev]Fixed
Source package: [libcrypto++]
Details (2)
8.9.0-2· amd64 · trixieFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · 13
8.9.0-2· arm64 · trixieFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · 13
- [libcrypto++-doc]Fixed
Source package: [libcrypto++]
Details (2)
8.9.0-2· all · trixieFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · 13
8.9.0-2· all · trixieFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · 13
- [libcrypto++-utils]Fixed
Source package: [libcrypto++]
Details (2)
8.9.0-2· amd64 · trixieFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · 13
8.9.0-2· arm64 · trixieFixed · Fixed:
5.6.4-5dsa · libcrypto++ · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2021_3301-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2016-9939]
- [https://osv.dev/vulnerability/DLA-766-1]
- [https://osv.dev/vulnerability/DSA-3748-1]
- [https://osv.dev/vulnerability/SUSE-SU-2021:3301-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2016-9939]
- [https://osv.dev/vulnerability/openSUSE-SU-2021:3301-1]
- [https://security-tracker.debian.org/tracker/CVE-2016-9939]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]