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korean/hcode: Fix buffer overflow in mail.c

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Reported by:	Wolfgang Frisch <wfrisch@suse.de>
MFH:		2024Q2
Security:	CVE-2024-34020
This commit is contained in:
Thomas Zander 2024-05-01 21:52:46 +02:00
parent 0bdbff31c5
commit 483d9e29e0
No known key found for this signature in database
GPG Key ID: 856D8ED47C7EAFA5
2 changed files with 23 additions and 13 deletions
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2
korean/hcode/Makefile
View File

@ -1,6 +1,6 @@
PORTNAME= hcode
PORTVERSION= 2.1.3
PORTREVISION= 1
PORTREVISION= 2
CATEGORIES= korean
MASTER_SITES= http://ftp.kaist.ac.kr/hangul/incoming/ \
ftp://ftp.kaist.ac.kr/hangul/incoming/ \

34
korean/hcode/files/patch-mail.c
View File

@ -1,15 +1,16 @@
--- mail.c.orig 1998-03-11 05:02:22.000000000 -0500
+++ mail.c 2013-06-12 20:06:21.000000000 -0400
@@ -1,4 +1,8 @@
--- mail.c.orig 1998-03-11 10:02:22 UTC
+++ mail.c
@@ -1,5 +1,9 @@
+#include <ctype.h>
#include <stdio.h>
+#include <string.h>
+
+static int ks2iso(unsigned char *, FILE *);
+static int ks2iso(unsigned char *, FILE *);
+
/* ------------------------------------------------------
Search for Starting Mark and print out (ENGLISH) prologue
@@ -66,9 +70,8 @@
mark : Starting Code
@@ -66,9 +70,8 @@ FILE *fpin, *fpout;
#define SI '\017'
#define SO '\016'
@ -21,7 +22,7 @@
{
int mode=ASCII;
int i=0;
@@ -172,8 +175,8 @@
@@ -172,8 +175,8 @@ void (*prwc)();
if (fgets((char *) ibuf,HDR_BUF_LEN,fpin) == NULL) /* no message body */
return(1); /* header only (6/8/96) */
@ -32,7 +33,7 @@
header_switch(iptr,fpout);
continue;
}
@@ -186,7 +189,7 @@
@@ -186,7 +189,7 @@ void (*prwc)();
while ( charset[++i] != NULL ) {
sprintf(encode_prefix,"=?%s?B?",charset[i]);
@ -41,7 +42,7 @@
strlen(encode_prefix)) ) {
isbqheader=
bqheader_decode(&iptr,encode_prefix,Bencode,
@@ -195,7 +198,7 @@
@@ -195,7 +198,7 @@ void (*prwc)();
}
sprintf(encode_prefix,"=?%s?Q?",charset[i]);
@ -50,7 +51,16 @@
strlen(encode_prefix)) ) {
isbqheader=
bqheader_decode(&iptr,encode_prefix,Qencode,
@@ -250,15 +253,15 @@
@@ -238,7 +241,7 @@ int outCode;
unsigned char ibuf[HDR_BUF_LEN],obuf[HDR_BUF_LEN],tbuf[HDR_BUF_LEN];
unsigned char *iptr, *tptr;
- if ( cp >= HDR_BUF_LEN ) {
+ if ( cp >= (HDR_BUF_LEN-8) ) {
pr2m(Printwc,fpout,outCode);
return;
}
@@ -250,15 +253,15 @@ int outCode;
return;
}
ibuf[cp++] = '\n';
@ -69,7 +79,7 @@
string_to_base64(obuf, tbuf);
fprintf(fpout,"=?EUC-KR?B?%s?=",obuf);
}
@@ -342,12 +345,12 @@
@@ -342,12 +345,12 @@ void (*prwc)();
only checks if there's any whitespace or '?'.
*/
@ -85,7 +95,7 @@
iptr+=2;
if ( encoding == Bencode)
base64_to_string(obuf, tbuf);
@@ -495,7 +498,7 @@
@@ -495,7 +498,7 @@ void header_switch(iptr,fpout)
/* void header_switch(iptr0,fpout,name_len) */
void header_switch(iptr,fpout)
/* unsigned char **iptr0; */