CVE-2021-33459
MEDIUMCVSS 5.5/10EPSS 0.31%
Last modified
CVE-2021-33459 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in nasm_parser_directive() in modules/parsers/nasm/nasm-parse.c.. EPSS estimates a 0.31% chance of exploitation in the next 30 days.
Description
An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in nasm_parser_directive() in modules/parsers/nasm/nasm-parse.c.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Tortall | Yasm | 1.3.0 |
References
- https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6dThird Party Advisory
- https://github.com/yasm/yasm/issues/167Exploit, Issue Tracking, Third Party Advisory
- https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6dThird Party Advisory
- https://github.com/yasm/yasm/issues/167Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-33459?
An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in nasm_parser_directive() in modules/parsers/nasm/nasm-parse.c.
How severe is CVE-2021-33459?
CVE-2021-33459 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.31% probability of exploitation in the next 30 days.
How do I fix CVE-2021-33459?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-33453An issue was discovered in lrzip version 0.641. There is a u…7.8
- CVE-2021-33454An issue was discovered in yasm version 1.3.0. There is a NU…5.5
- CVE-2021-33455An issue was discovered in yasm version 1.3.0. There is a NU…5.5
- CVE-2021-33456An issue was discovered in yasm version 1.3.0. There is a NU…5.5
- CVE-2021-33457An issue was discovered in yasm version 1.3.0. There is a NU…5.5
- CVE-2021-33458An issue was discovered in yasm version 1.3.0. There is a NU…5.5
- CVE-2021-3346Foris before 101.1.1, as used in Turris OS, lacks certain HT…9.8
- CVE-2021-33460An issue was discovered in yasm version 1.3.0. There is a NU…5.5
- CVE-2021-33461An issue was discovered in yasm version 1.3.0. There is a us…5.5
- CVE-2021-33462An issue was discovered in yasm version 1.3.0. There is a us…5.5
- CVE-2021-33463An issue was discovered in yasm version 1.3.0. There is a NU…5.5
- CVE-2021-33464An issue was discovered in yasm version 1.3.0. There is a he…5.5
Are you affected by CVE-2021-33459?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST