Vulnerability Description
NaviServer 4.99.4 to 4.99.19 allows denial of service due to the nsd/driver.c ChunkedDecode function not properly validating the length of a chunk. A remote attacker can craft a chunked-transfer request that will result in a negative value being passed to memmove via the size parameter, causing the process to crash.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Naviserver Project | Naviserver | >= 4.99.4, <= 4.99.19 |
Related Weaknesses (CWE)
References
- https://bitbucket.org/naviserver/naviserver/commits/a5c3079f1d8996d5f34c9384a440PatchThird Party Advisory
- https://sourceforge.net/p/naviserver/bugs/89/Permissions RequiredThird Party Advisory
- https://bitbucket.org/naviserver/naviserver/commits/a5c3079f1d8996d5f34c9384a440PatchThird Party Advisory
- https://sourceforge.net/p/naviserver/bugs/89/Permissions RequiredThird Party Advisory
FAQ
What is CVE-2020-13111?
CVE-2020-13111 is a vulnerability with a CVSS score of 7.5 (HIGH). NaviServer 4.99.4 to 4.99.19 allows denial of service due to the nsd/driver.c ChunkedDecode function not properly validating the length of a chunk. A remote attacker can craft a chunked-transfer reque...
How severe is CVE-2020-13111?
CVE-2020-13111 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-13111?
Check the references section above for vendor advisories and patch information. Affected products include: Naviserver Project Naviserver.