ELA-1032-1 asterisk security update

arbitrary file read

2024-01-24
Packageasterisk
Version1:13.14.1~dfsg-2+deb9u9 (stretch)
Related CVEs CVE-2023-37457 CVE-2023-49294


Two security vulnerabilities were discovered in Asterisk, a private branch exchange.

CVE-2023-37457

The 'update' functionality of the PJSIP_HEADER dialplan function can exceed
the available buffer space for storing the new value of a header. By doing
so this can overwrite memory or cause a crash. This is not externally
exploitable, unless dialplan is explicitly written to update a header based
on data from an outside source. If the 'update' functionality is not used
the vulnerability does not occur.

CVE-2023-49294

It is possible to read any arbitrary file even when the `live_dangerously`
option is not enabled.


For Debian 9 stretch, these problems have been fixed in version 1:13.14.1~dfsg-2+deb9u9.

We recommend that you upgrade your asterisk packages.

Further information about Extended LTS security advisories can be found in the dedicated section of our website.