CVE-2021-27347
MEDIUMCVSS 5.5/10EPSS 0.72%
Last modified
CVE-2021-27347 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Use after free in lzma_decompress_buf function in stream.c in Irzip 0.631 allows attackers to cause Denial of Service (DoS) via a crafted compressed file.. EPSS estimates a 0.72% chance of exploitation in the next 30 days.
Description
Use after free in lzma_decompress_buf function in stream.c in Irzip 0.631 allows attackers to cause Denial of Service (DoS) via a crafted compressed file.
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 |
|---|---|---|
| Long Range Zip Project | Long Range Zip | 0.631 |
| Debian | Debian Linux | 9.0 |
References
- https://github.com/ckolivas/lrzip/issues/165Exploit, Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/04/msg00012.htmlMailing List, Third Party Advisory
- https://github.com/ckolivas/lrzip/issues/165Exploit, Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/04/msg00012.htmlMailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-27347?
Use after free in lzma_decompress_buf function in stream.c in Irzip 0.631 allows attackers to cause Denial of Service (DoS) via a crafted compressed file.
How severe is CVE-2021-27347?
CVE-2021-27347 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.72% probability of exploitation in the next 30 days.
How do I fix CVE-2021-27347?
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.
Are you affected by CVE-2021-27347?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST