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258128aefe
- 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>
111 lines
3.0 KiB
Makefile
111 lines
3.0 KiB
Makefile
################################################################################
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#
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# libvncserver
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#
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################################################################################
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LIBVNCSERVER_VERSION = 0.9.15
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LIBVNCSERVER_SITE = $(call github,LibVNC,libvncserver,LibVNCServer-$(LIBVNCSERVER_VERSION))
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LIBVNCSERVER_LICENSE = GPL-2.0+
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LIBVNCSERVER_LICENSE_FILES = COPYING
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LIBVNCSERVER_CPE_ID_VALID = YES
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LIBVNCSERVER_INSTALL_STAGING = YES
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LIBVNCSERVER_DEPENDENCIES = host-pkgconf lzo
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LIBVNCSERVER_CONF_OPTS = -DWITH_LZO=ON
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# 0002-add-bounds-checks-to-UltraZip-subrectangle-parsing.patch
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LIBVNCSERVER_IGNORE_CVES += CVE-2026-32853
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# 0003-fix-NULL-pointer-dereferences-in-httpd-proxy-handlers.patch
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LIBVNCSERVER_IGNORE_CVES += CVE-2026-32854
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# only used for examples
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LIBVNCSERVER_CONF_OPTS += \
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-DWITH_FFMPEG=OFF \
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-DWITH_GTK=OFF \
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-DWITH_SDL=OFF \
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-DWITH_TESTS=OFF
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ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
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LIBVNCSERVER_CONF_OPTS += -DWITH_THREADS=ON
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else
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LIBVNCSERVER_CONF_OPTS += -DWITH_THREADS=OFF
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endif
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# openssl supports needs NPTL thread support
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ifeq ($(BR2_PACKAGE_OPENSSL)$(BR2_TOOLCHAIN_HAS_THREADS_NPTL),yy)
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LIBVNCSERVER_CONF_OPTS += -DWITH_OPENSSL=ON
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LIBVNCSERVER_DEPENDENCIES += openssl
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else
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LIBVNCSERVER_CONF_OPTS += -DWITH_OPENSSL=OFF
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endif
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ifeq ($(BR2_PACKAGE_LIBGCRYPT),y)
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LIBVNCSERVER_CONF_OPTS += -DWITH_GCRYPT=ON
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LIBVNCSERVER_DEPENDENCIES += libgcrypt
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else
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LIBVNCSERVER_CONF_OPTS += -DWITH_GCRYPT=OFF
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endif
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ifeq ($(BR2_PACKAGE_GNUTLS)$(BR2_PACKAGE_LIBGCRYPT),yy)
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LIBVNCSERVER_CONF_OPTS += -DWITH_GNUTLS=ON
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LIBVNCSERVER_DEPENDENCIES += gnutls
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else
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LIBVNCSERVER_CONF_OPTS += -DWITH_GNUTLS=OFF
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endif
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ifeq ($(BR2_PACKAGE_JPEG),y)
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LIBVNCSERVER_CONF_OPTS += -DWITH_JPEG=ON
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LIBVNCSERVER_DEPENDENCIES += jpeg
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else
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LIBVNCSERVER_CONF_OPTS += -DWITH_JPEG=OFF
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endif
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ifeq ($(BR2_PACKAGE_LIBPNG),y)
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LIBVNCSERVER_CONF_OPTS += -DWITH_PNG=ON
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LIBVNCSERVER_DEPENDENCIES += libpng
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else
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LIBVNCSERVER_CONF_OPTS += -DWITH_PNG=OFF
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endif
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ifeq ($(BR2_PACKAGE_SYSTEMD),y)
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LIBVNCSERVER_CONF_OPTS += -DWITH_SYSTEMD=ON
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LIBVNCSERVER_DEPENDENCIES += systemd
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else
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LIBVNCSERVER_CONF_OPTS += -DWITH_SYSTEMD=OFF
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endif
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ifeq ($(BR2_PACKAGE_ZLIB),y)
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LIBVNCSERVER_CONF_OPTS += -DWITH_ZLIB=ON
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LIBVNCSERVER_DEPENDENCIES += zlib
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else
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LIBVNCSERVER_CONF_OPTS += -DWITH_ZLIB=OFF
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endif
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ifeq ($(BR2_PACKAGE_LIBVNCSERVER_WEBSOCKETS),y)
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HBT_LIBVNCSERVER_CONF_OPTS += -DWITH_WEBSOCKETS=ON
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define LIBVNCSERVER_INSTALL_VNC
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$(INSTALL) -D -m 644 $(@D)/webclients/index.vnc \
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$(TARGET_DIR)/usr/share/vnc/index.vnc
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endef
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LIBVNCSERVER_POST_INSTALL_TARGET_HOOKS += LIBVNCSERVER_INSTALL_VNC
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else
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LIBVNCSERVER_CONF_OPTS += -DWITH_WEBSOCKETS=OFF
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endif
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ifeq ($(BR2_PACKAGE_LIBVNCSERVER_INSTALL_STOREPASSSWD),y)
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LIBVNCSERVER_CONF_OPTS += -DWITH_EXAMPLES=ON
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define LIBVNCSERVER_INSTALL_STOREPASSWD
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$(INSTALL) -D -m 0755 $(@D)/examples/server/storepasswd \
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$(TARGET_DIR)/usr/bin/storepasswd
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endef
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LIBVNCSERVER_POST_INSTALL_TARGET_HOOKS += LIBVNCSERVER_INSTALL_STOREPASSWD
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else
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LIBVNCSERVER_CONF_OPTS += -DWITH_EXAMPLES=OFF
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endif
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$(eval $(cmake-package))
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