Thomas Perale 258128aefe package/libvncserver: patch CVE-2026-3285{3, 4}
- CVE-2026-32853:
    LibVNCServer versions 0.9.15 and prior (fixed in commit 009008e)
    contain a heap out-of-bounds read vulnerability in the UltraZip
    encoding handler that allows a malicious VNC server to cause
    information disclosure or application crash. Attackers can exploit
    improper bounds checking in the HandleUltraZipBPP() function by
    manipulating subrectangle header counts to read beyond the allocated
    heap buffer.

For more information, see:
  - https://www.cve.org/CVERecord?id=CVE-2026-32853
  - https://github.com/LibVNC/libvncserver/security/advisories/GHSA-87q7-v983-qwcj
  - 009008e2f4

- CVE-2026-32854:
    LibVNCServer versions 0.9.15 and prior (fixed in commit dc78dee)
    contain null pointer dereference vulnerabilities in the HTTP proxy
    handlers within httpProcessInput() in httpd.c that allow remote
    attackers to cause a denial of service by sending specially crafted
    HTTP requests. Attackers can exploit missing validation of strchr()
    return values in the CONNECT and GET proxy handling paths to trigger
    null pointer dereferences and crash the server when httpd and proxy
    features are enabled.

For more information, see:
  - https://www.cve.org/CVERecord?id=CVE-2026-32854
  - https://github.com/LibVNC/libvncserver/security/advisories/GHSA-xjp8-4qqv-5x4x
  - dc78dee51a

Signed-off-by: Thomas Perale <thomas.perale@mind.be>
Signed-off-by: Julien Olivain <ju.o@free.fr>
2026-05-12 22:39:13 +02:00
2026-05-12 15:53:05 +02:00
2026-04-01 11:22:23 +02:00
2026-04-30 13:59:41 +02:00
2026-05-12 15:53:05 +02:00
2026-05-12 15:53:05 +02:00
2026-03-26 21:07:00 +01:00

Buildroot is a simple, efficient and easy-to-use tool to generate embedded
Linux systems through cross-compilation.

The documentation can be found in docs/manual. You can generate a text
document with 'make manual-text' and read output/docs/manual/manual.text.
Online documentation can be found at https://buildroot.org/docs.html

To build and use the buildroot stuff, do the following:

1) run 'make menuconfig'
2) select the target architecture and the packages you wish to compile
3) run 'make'
4) wait while it compiles
5) find the kernel, bootloader, root filesystem, etc. in output/images

You do not need to be root to build or run buildroot.  Have fun!

Buildroot comes with a basic configuration for a number of boards. Run
'make list-defconfigs' to view the list of provided configurations.

Please feed suggestions, bug reports, insults, and bribes back to the
buildroot mailing list: buildroot@buildroot.org
You can also find us on #buildroot on OFTC IRC.

If you would like to contribute patches, please read
https://buildroot.org/manual.html#submitting-patches
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