aleleba/vectorcraft
1
0
Fork 0
mirror of https://github.com/storytold/vectorcraft.git synced 2026-11-01 13:47:21 -06:00
Code Issues Packages Projects Releases Wiki Activity

Fix #1715: ASCII85 decoding is bounded while it decodes

Browse Source 
A `z` is four bytes for one character, so the text's length didn't bound
the result, and the filter's and the interpreter's budgets only saw it once
it was whole. The decoder now stops at 256 MB, the most one filter or data
section may hold.
This commit is contained in:
bflatastic
2026-10-14 08:47:10 +07:00
parent 0cb55bc0aa
commit 277e893e82
2 changed files with 21 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
crates/eps/src/tests.rs
+5
View File
@@ -345,6 +345,11 @@ fn run_length_and_ascii85_round_trip() {
assert_eq!(ps::ascii85(b"Man "), "9jqo^~>\n");
assert_eq!(ps::ascii85(&[0, 0, 0, 0]), "z~>\n");
assert!(ps::ascii85_decode("9jqo^").is_none(), "no end marker");
// #1715: the result is bounded while it is made, not by the length of the text.
assert_eq!(ps::ascii85_decode_within("zz~>", 8), Some(vec![0; 8]));
assert!(ps::ascii85_decode_within("zzz~>", 8).is_none(), "three `z` are 12 bytes");
assert!(ps::ascii85_decode_within("zz9jqo^~>", 8).is_none());
assert!(ps::ascii85_decode_within(&format!("{}~>", "z".repeat(1 << 16)), 1 << 10).is_none());
assert!(ps::ascii85_decode("9jqo^v~>").is_none(), "not base 85");
assert_eq!(ps::num(1.0 / 3.0), "0.3333");
assert_eq!((ps::num(-0.00001), ps::num(f64::NAN), ps::num(2.5)), ("0".into(), "0".into(), "2.5".into()));