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AST-2022-006: pjproject - unconstrained malformed multipart SIP message

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ASTERISK-29945 #close

Change-Id: Ic58957afc453195d53c2bd25c905df3d91d1abe6
This commit is contained in:
Kevin Harwell
2022-03-03 16:44:20 -06:00
committed by Kevin Harwell
parent 742d265ff5
commit 9e74563a50
1 changed files with 42 additions and 0 deletions
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42
third-party/pjproject/patches/0172-prevent-multipart-oob.patch vendored Normal file
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@@ -0,0 +1,42 @@
From 077b465c33f0aec05a49cd2ca456f9a1b112e896 Mon Sep 17 00:00:00 2001
From: sauwming <ming@teluu.com>
Date: Wed, 26 Jan 2022 13:28:57 +0800
Subject: [PATCH] Merge pull request from GHSA-7fw8-54cv-r7pm
---
pjlib-util/src/pjlib-util/scanner.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)
diff --git a/pjlib-util/src/pjlib-util/scanner.c b/pjlib-util/src/pjlib-util/scanner.c
index 27a0b8831..a54edf2d8 100644
--- a/pjlib-util/src/pjlib-util/scanner.c
+++ b/pjlib-util/src/pjlib-util/scanner.c
@@ -444,16 +444,21 @@ PJ_DEF(void) pj_scan_get_n( pj_scanner *scanner,
PJ_DEF(int) pj_scan_get_char( pj_scanner *scanner )
{
- int chr = *scanner->curptr;
+ register char *s = scanner->curptr;
+ int chr;
- if (!chr) {
+ if (s >= scanner->end || !*s) {
pj_scan_syntax_err(scanner);
return 0;
}
- ++scanner->curptr;
+ chr = *s;
- if (PJ_SCAN_IS_PROBABLY_SPACE(*scanner->curptr) && scanner->skip_ws) {
+ ++s;
+ scanner->curptr = s;
+ if (PJ_SCAN_CHECK_EOF(s) && PJ_SCAN_IS_PROBABLY_SPACE(*s) &&
+ scanner->skip_ws)
+ {
pj_scan_skip_whitespace(scanner);
}
return chr;
--
2.25.1