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.
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Submitted by
Stefan Dirsch (sndirsch)
Fixed bugs
bnc#1160250
VUL-0: CVE-2019-15692: tigervnc: improper value checks in CopyRectDecode may lead to heap buffer overflow
bnc#1159860
VUL-0: CVE-2019-15695: tigervnc: stack buffer overflow, which could be triggered from CMsgReader::readSetCurso
bnc#1159856
VUL-0: CVE-2019-15691: tigervnc: stack use-after-return due to incorrect usage of stack memory in ZRLEDecoder
bnc#1160251
VUL-0: CVE-2019-15694: tigervnc: improper error handling in processing MemOutStream may lead to heap buffer overflow
bnc#1159858
VUL-0: CVE-2019-15693: tigervnc: heap buffer overflow in TightDecoder::FilterGradient
