High severity7.5NVD Advisory· Published May 16, 2020· Updated Jun 17, 2026
CVE-2020-13111
CVE-2020-13111
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.
Affected products
2- NaviServer/NaviServerdescription
- Range: 4.99.4 - 4.99.19
Patches
Vulnerability mechanics
References
2- bitbucket.org/naviserver/naviserver/commits/a5c3079f1d8996d5f34c9384a440acf3519ca3bbnvdPatchThird Party Advisory
- sourceforge.net/p/naviserver/bugs/89/nvdPermissions RequiredThird Party Advisory
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