Описание
Security update for tigervnc
This update for tigervnc fixes the following issues:
- CVE-2019-15691: Fixed a use-after-return due to incorrect usage of stack memory in ZRLEDecoder (bsc#1159856).
- CVE-2019-15692: Fixed a heap-based buffer overflow in CopyRectDecode (bsc#1160250).
- CVE-2019-15693: Fixed a heap-based buffer overflow in TightDecoder::FilterGradient (bsc#1159858).
- CVE-2019-15694: Fixed a heap-based buffer overflow, caused by improper error handling in processing MemOutStream (bsc#1160251).
- CVE-2019-15695: Fixed a stack-based buffer overflow, which could be triggered from CMsgReader::readSetCursor (bsc#1159860).
This update was imported from the SUSE:SLE-15-SP1:Update update project.
Список пакетов
openSUSE Leap 15.1
Ссылки
- E-Mail link for openSUSE-SU-2020:0087-1
- SUSE Security Ratings
- SUSE Bug 1159856
- SUSE Bug 1159858
- SUSE Bug 1159860
- SUSE Bug 1160250
- SUSE Bug 1160251
- SUSE CVE CVE-2019-15691 page
- SUSE CVE CVE-2019-15692 page
- SUSE CVE CVE-2019-15693 page
- SUSE CVE CVE-2019-15694 page
- SUSE CVE CVE-2019-15695 page
Описание
TigerVNC version prior to 1.10.1 is vulnerable to stack use-after-return, which occurs due to incorrect usage of stack memory in ZRLEDecoder. If decoding routine would throw an exception, ZRLEDecoder may try to access stack variable, which has been already freed during the process of stack unwinding. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
Затронутые продукты
Ссылки
- CVE-2019-15691
- SUSE Bug 1159856
Описание
TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow. Vulnerability could be triggered from CopyRectDecoder due to incorrect value checks. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
Затронутые продукты
Ссылки
- CVE-2019-15692
- SUSE Bug 1160250
Описание
TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow, which occurs in TightDecoder::FilterGradient. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
Затронутые продукты
Ссылки
- CVE-2019-15693
- SUSE Bug 1159858
Описание
TigerVNC version prior to 1.10.1 is vulnerable to heap buffer overflow, which could be triggered from DecodeManager::decodeRect. Vulnerability occurs due to the signdness error in processing MemOutStream. Exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
Затронутые продукты
Ссылки
- CVE-2019-15694
- SUSE Bug 1160251
Описание
TigerVNC version prior to 1.10.1 is vulnerable to stack buffer overflow, which could be triggered from CMsgReader::readSetCursor. This vulnerability occurs due to insufficient sanitization of PixelFormat. Since remote attacker can choose offset from start of the buffer to start writing his values, exploitation of this vulnerability could potentially result into remote code execution. This attack appear to be exploitable via network connectivity.
Затронутые продукты
Ссылки
- CVE-2019-15695
- SUSE Bug 1159860