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advisory-db/crates/ncurses/RUSTSEC-2019-0006.md
Tony Arcieri ac125ee29a Translate database into V3 advisory format (#420) 
As proposed in #240 and tracked in #414, this PR translates all
advisories into the new "V3" advisory format, which is based on Markdown
with leading TOML front matter.

This format makes it easier to see rendered Markdown syntax
descriptions, whether rendered by an IDE or GitHub. This should help
with both crafting advisories initially as well as review, and ideally
encourages more lengthy descriptions.

Support for this format shipped in `cargo-audit` v0.12.0 on
May 6th, 2020.
2020-10-01 18:29:11 -07:00

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[advisory]
id = "RUSTSEC-2019-0006"
package = "ncurses"
aliases = ["CVE-2019-15547", "CVE-2019-15548"]
date = "2019-06-15"
url = "https://github.com/RustSec/advisory-db/issues/106"

[affected.functions]
"ncurses::instr" = [">= 0"]
"ncurses::mvprintw" = [">= 0"]
"ncurses::mvwinstr" = [">= 0"]
"ncurses::mvwprintw" = [">= 0"]
"ncurses::printw" = [">= 0"]

[versions]
patched = []

Buffer overflow and format vulnerabilities in functions exposed without unsafe

ncurses exposes functions from the ncurses library which:

  • Pass buffers without length to C functions that may write an arbitrary amount of data, leading to a buffer overflow. (instr, mvwinstr, etc)
  • Passes rust &str to strings expecting C format arguments, allowing hostile input to execute a format string attack, which trivially allows writing arbitrary data to stack memory (functions in the printw family).