Curl versions 7.33.0 through 7.61.1 are vulnerable to a buffer overrun in the SASL authentication code that may lead to denial of service.
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://security.gentoo.org/glsa/201903-03 | third party advisory vendor advisory |
| https://www.debian.org/security/2018/dsa-4331 | third party advisory vendor advisory |
| https://lists.debian.org/debian-lts-announce/2018/11/msg00005.html | third party advisory mailing list |
| https://curl.haxx.se/docs/CVE-2018-16839.html | patch vendor advisory |
| https://github.com/curl/curl/commit/f3a24d7916b9173c69a3e0ee790102993833d6c5 | third party advisory patch |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16839 | third party advisory issue tracking |
| http://www.securitytracker.com/id/1042012 | third party advisory vdb entry |
| https://usn.ubuntu.com/3805-1/ | third party advisory vendor advisory |
| https://lists.apache.org/thread.html/8338a0f605bdbb3a6098bb76f666a95fc2b2f53f37fa1ecc89f1146f%40%3Cdevnull.infra.apache.org%3E | mailing list |