The C software implementation of AES Encryption and Decryption in wolfSSL (formerly CyaSSL) before 3.9.10 makes it easier for local users to
The C software implementation of AES Encryption and Decryption in wolfSSL (formerly CyaSSL) before 3.9.10 makes it easier for local users to discover AES keys by leveraging cache-bank timing differences.
- Published
- Dec 13, 2016
- Updated
- Jun 16, 2026
- EPSS
- 0.3% · 21th percentile
- CWE
- —
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Report tools
Action score
22
Monitor
Low priority for now.
- CVSS
- 22 / 40 · 5.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.3%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| wolfssl | wolfssl | cpe:2.3:a:wolfssl:wolfssl |
| mariadb | mariadb | cpe:2.3:a:mariadb:mariadb |
| oracle | mysql | cpe:2.3:a:oracle:mysql |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- oracle mysql5.5.0 and later · up to 5.5.52 inclusive
- oracle mysql5.6.0 and later · up to 5.6.33 inclusive
- oracle mysql5.7.0 and later · up to 5.7.15 inclusive
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | wolfssl | before 3.9.10+dfsg-1 | 3.9.10+dfsg-1 |
| Debian:7 | mysql-5.5 | before 5.5.53-0+deb7u1 | 5.5.53-0+deb7u1 |
| Debian:8 | mariadb-10.0 | before 10.0.28-0+deb8u1 | 10.0.28-0+deb8u1 |
| Debian:8 | mysql-5.5 | before 5.5.53-0+deb8u1 | 5.5.53-0+deb8u1 |
| openSUSE:Tumbleweed | mariadb | before 10.6.4-2.1 | 10.6.4-2.1 |
| SUSE:Linux Enterprise Desktop 12 SP1 | mariadb | before 10.0.28-17.2 | 10.0.28-17.2 |
| SUSE:Linux Enterprise Server for SAP Applications 12 | mariadb | before 10.0.28-20.16.2 | 10.0.28-20.16.2 |
| SUSE:Linux Enterprise Software Development Kit 11 SP4 | mysql | before 5.5.53-0.30.1 | 5.5.53-0.30.1 |
Same product
wolfssl: all recordsOther highest-scoring records for the same primary product.
- CVE-2019-11873wolfSSL 4.0.0 has a Buffer Overflow in DoPreSharedKeys in tls13.c when a current identity size is greater than a client identity size.42Plan
- CVE-2017-2800A specially crafted x509 certificate can cause a single out of bounds byte overwrite in wolfSSL through 3.10.2 resulting in potential certif42Plan
- CVE-2024-5991Buffer overread in domain name matching40Plan
- CVE-2020-36177RsaPad_PSS in wolfcrypt/src/rsa.c in wolfSSL before 4.6.0 has an out-of-bounds write for certain relationships between key size and digest s40Plan
- CVE-2014-2898wolfSSL CyaSSL before 2.9.4 allows remote attackers to have unspecified impact via multiple calls to the CyaSSL_read function which triggers40Plan
- CVE-2014-2897The SSL 3 HMAC functionality in wolfSSL CyaSSL 2.5.0 before 2.9.4 does not check the padding length when verification fails, which allows re40Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:mariadb-10.0 | 10.0.28-0+deb8u1 · Debian:8 | Package registry (OSV) |
| debian:mysql-5.5 | 5.5.53-0+deb7u1 · Debian:7 | Package registry (OSV) |
| debian:wolfssl | 3.9.10+dfsg-1 · Debian:12 | Package registry (OSV) |
| opensuse:mariadb | 10.6.4-2.1 · openSUSE:Tumbleweed | Package registry (OSV) |
| suse:mariadb | 10.0.28-20.16.2 · SUSE:Linux Enterprise Server for SAP Applications 12 | Package registry (OSV) |
| suse:mysql | 5.5.53-0.30.1 · SUSE:Linux Enterprise Software Development Kit 11 SP4 | Package registry (OSV) |
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
The product’s vendor appears in a public program. Matched by name; verify the scope text in the program.
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- none
- Availability
- none
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- None
- Availability impact
- None
Weakness class (CWE)
—
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
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References
- www.debian.org/security/2016/dsa-3706
- www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
- www.securityfocus.com/bid/93659
- www.securitytracker.com/id/1037050
- mariadb.com/kb/en/mariadb/mariadb-10028-release-notes/
- wolfssl.com/wolfSSL/Blog/Entries/2016/9/26_wolfSSL_3.9.10_Vulnerability_Fixes.html
Vendor advisories and official records. Exploit/PoC links are deliberately left out.