diff --git a/srcpkgs/musl/patches/iconv_0001-iconv-fix-erroneous-input-validation-in-EUC-KR-decod.patch b/srcpkgs/musl/patches/iconv_0001-iconv-fix-erroneous-input-validation-in-EUC-KR-decod.patch new file mode 100644 index 00000000000..ff92d8ef943 --- /dev/null +++ b/srcpkgs/musl/patches/iconv_0001-iconv-fix-erroneous-input-validation-in-EUC-KR-decod.patch @@ -0,0 +1,38 @@ +From e5adcd97b5196e29991b524237381a0202a60659 Mon Sep 17 00:00:00 2001 +From: Rich Felker +Date: Sun, 9 Feb 2025 10:07:19 -0500 +Subject: [PATCH] iconv: fix erroneous input validation in EUC-KR decoder + +as a result of incorrect bounds checking on the lead byte being +decoded, certain invalid inputs which should produce an encoding +error, such as "\xc8\x41", instead produced out-of-bounds loads from +the ksc table. + +in a worst case, the loaded value may not be a valid unicode scalar +value, in which case, if the output encoding was UTF-8, wctomb would +return (size_t)-1, causing an overflow in the output pointer and +remaining buffer size which could clobber memory outside of the output +buffer. + +bug report was submitted in private by Nick Wellnhofer on account of +potential security implications. +--- + src/locale/iconv.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/src/locale/iconv.c b/src/locale/iconv.c +index 9605c8e9..008c93f0 100644 +--- a/src/locale/iconv.c ++++ b/src/locale/iconv.c +@@ -502,7 +502,7 @@ size_t iconv(iconv_t cd, char **restrict in, size_t *restrict inb, char **restri + if (c >= 93 || d >= 94) { + c += (0xa1-0x81); + d += 0xa1; +- if (c >= 93 || c>=0xc6-0x81 && d>0x52) ++ if (c > 0xc6-0x81 || c==0xc6-0x81 && d>0x52) + goto ilseq; + if (d-'A'<26) d = d-'A'; + else if (d-'a'<26) d = d-'a'+26; +-- +2.21.0 + diff --git a/srcpkgs/musl/patches/iconv_0002-iconv-harden-UTF-8-output-code-path-against-input-de.patch b/srcpkgs/musl/patches/iconv_0002-iconv-harden-UTF-8-output-code-path-against-input-de.patch new file mode 100644 index 00000000000..d66e66e3f18 --- /dev/null +++ b/srcpkgs/musl/patches/iconv_0002-iconv-harden-UTF-8-output-code-path-against-input-de.patch @@ -0,0 +1,37 @@ +From c47ad25ea3b484e10326f933e927c0bc8cded3da Mon Sep 17 00:00:00 2001 +From: Rich Felker +Date: Wed, 12 Feb 2025 17:06:30 -0500 +Subject: [PATCH] iconv: harden UTF-8 output code path against input decoder + bugs + +the UTF-8 output code was written assuming an invariant that iconv's +decoders only emit valid Unicode Scalar Values which wctomb can encode +successfully, thereby always returning a value between 1 and 4. + +if this invariant is not satisfied, wctomb returns (size_t)-1, and the +subsequent adjustments to the output buffer pointer and remaining +output byte count overflow, moving the output position backwards, +potentially past the beginning of the buffer, without storing any +bytes. +--- + src/locale/iconv.c | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/src/locale/iconv.c b/src/locale/iconv.c +index 008c93f0..52178950 100644 +--- a/src/locale/iconv.c ++++ b/src/locale/iconv.c +@@ -545,6 +545,10 @@ size_t iconv(iconv_t cd, char **restrict in, size_t *restrict inb, char **restri + if (*outb < k) goto toobig; + memcpy(*out, tmp, k); + } else k = wctomb_utf8(*out, c); ++ /* This failure condition should be unreachable, but ++ * is included to prevent decoder bugs from translating ++ * into advancement outside the output buffer range. */ ++ if (k>4) goto ilseq; + *out += k; + *outb -= k; + break; +-- +2.21.0 + diff --git a/srcpkgs/musl/template b/srcpkgs/musl/template index 66e5cf056e9..04e22c4fb01 100644 --- a/srcpkgs/musl/template +++ b/srcpkgs/musl/template @@ -2,7 +2,7 @@ pkgname=musl reverts="1.2.0_1" version=1.1.24 -revision=22 +revision=23 archs="*-musl" bootstrap=yes build_style=gnu-configure