Description
A vulnerability was determined in YosysHQ yosys up to 0.62. This affects the function Yosys::RTLIL::Const::set of the file kernel/rtlil.h of the component BLIF File Parser. This manipulation causes heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has been publicly disclosed and may be utilized. Applying a patch is the recommended action to fix this issue. It appears that the issue is not reproducible all the time.
Problem types
Product status
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
0.10
0.11
0.12
0.13
0.14
0.15
0.16
0.17
0.18
0.19
0.20
0.21
0.22
0.23
0.24
0.25
0.26
0.27
0.28
0.29
0.30
0.31
0.32
0.33
0.34
0.35
0.36
0.37
0.38
0.39
0.40
0.41
0.42
0.43
0.44
0.45
0.46
0.47
0.48
0.49
0.50
0.51
0.52
0.53
0.54
0.55
0.56
0.57
0.58
0.59
0.60
0.61
0.62
Timeline
| 2026-03-01: | Advisory disclosed |
| 2026-03-01: | VulDB entry created |
| 2026-03-01: | VulDB entry last update |
Credits
Oneafter (VulDB User)
References
vuldb.com/?id.348302 (VDB-348302 | YosysHQ yosys BLIF File rtlil.h set heap-based overflow)
vuldb.com/?ctiid.348302 (VDB-348302 | CTI Indicators (IOB, IOC, IOA))
vuldb.com/?submit.763755 (Submit #763755 | YosysHQ yosys 8bbde80 Heap-based Buffer Overflow)
github.com/YosysHQ/yosys/issues/5677
github.com/YosysHQ/yosys/pull/5680
github.com/oneafter/0210/blob/main/yo2/repro
github.com/YosysHQ/yosys/pull/5681
github.com/YosysHQ/yosys/