Описание
Security update for LibVNCServer
The LibVNCServer package was updated to fix the following security issues:
- bsc#897031: fix several security issues:
- CVE-2014-6051: Integer overflow in MallocFrameBuffer() on client side.
- CVE-2014-6052: Lack of malloc() return value checking on client side.
- CVE-2014-6053: Server crash on a very large ClientCutText message.
- CVE-2014-6054: Server crash when scaling factor is set to zero.
- CVE-2014-6055: Multiple stack overflows in File Transfer feature.
- bsc#854151: Restrict the SSL cipher suite.
Список пакетов
openSUSE Leap 42.1
Ссылки
- E-Mail link for openSUSE-SU-2015:2207-1
- SUSE Security Ratings
Описание
Integer overflow in the MallocFrameBuffer function in vncviewer.c in LibVNCServer 0.9.9 and earlier allows remote VNC servers to cause a denial of service (crash) and possibly execute arbitrary code via an advertisement for a large screen size, which triggers a heap-based buffer overflow.
Затронутые продукты
Ссылки
- CVE-2014-6051
- SUSE Bug 897031
- SUSE Bug 900896
Описание
The HandleRFBServerMessage function in libvncclient/rfbproto.c in LibVNCServer 0.9.9 and earlier does not check certain malloc return values, which allows remote VNC servers to cause a denial of service (application crash) or possibly execute arbitrary code by specifying a large screen size in a (1) FramebufferUpdate, (2) ResizeFrameBuffer, or (3) PalmVNCReSizeFrameBuffer message.
Затронутые продукты
Ссылки
- CVE-2014-6052
- SUSE Bug 897031
Описание
The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier does not properly handle attempts to send a large amount of ClientCutText data, which allows remote attackers to cause a denial of service (memory consumption or daemon crash) via a crafted message that is processed by using a single unchecked malloc.
Затронутые продукты
Ссылки
- CVE-2014-6053
- SUSE Bug 897031
Описание
The rfbProcessClientNormalMessage function in libvncserver/rfbserver.c in LibVNCServer 0.9.9 and earlier allows remote attackers to cause a denial of service (divide-by-zero error and server crash) via a zero value in the scaling factor in a (1) PalmVNCSetScaleFactor or (2) SetScale message.
Затронутые продукты
Ссылки
- CVE-2014-6054
- SUSE Bug 897031
Описание
Multiple stack-based buffer overflows in the File Transfer feature in rfbserver.c in LibVNCServer 0.9.9 and earlier allow remote authenticated users to cause a denial of service (crash) and possibly execute arbitrary code via a (1) long file or (2) directory name or the (3) FileTime attribute in a rfbFileTransferOffer message.
Затронутые продукты
Ссылки
- CVE-2014-6055
- SUSE Bug 897031