Description
Schroedinger libschroedinger through 1.0.11 contains a divide by zero vulnerability that allows attackers to crash applications by supplying a zero slice_bytes_denom or slice count in a Dirac stream. Attackers can provide a crafted low-delay picture parsed by schro_decoder_parse_transform_parameters and schro_decoder_parse_lowdelay_transform_data to trigger a SIGFPE and cause denial of service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Schroedinger | schroedinger | ≤ 1.0.11 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | schroedinger | No fix yet | — |
| Ubuntu 14.04 LTS | schroedinger | No fix yet | — |
References
- https://hackmd.io/@haindpwn/schroedinger-lowdelay-quant-matrix-oob third-party-advisory
- https://github.com/Distrotech/schroedinger/blob/schroedinger-1.0.11/schroedinger/schrodecoder.c#L2932 technical-description
- VulnCheck Advisory: Schroedinger libschroedinger through 1.0.11 Divide by Zero in Low-Delay Transform Parsing third-party-advisory