From fc160abb6735cf29f3c394535ef3c57ffb0cff3c Mon Sep 17 00:00:00 2001 From: Kevin Harwell Date: Thu, 3 Mar 2022 16:41:16 -0600 Subject: [PATCH] AST-2022-004: pjproject - possible integer underflow on STUN message ASTERISK-29945 #close Change-Id: I721cd254e4f8aa6d3a97a37529cca53519694c54 --- .../patches/0170-stun-integer-underflow.patch | 26 +++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 third-party/pjproject/patches/0170-stun-integer-underflow.patch diff --git a/third-party/pjproject/patches/0170-stun-integer-underflow.patch b/third-party/pjproject/patches/0170-stun-integer-underflow.patch new file mode 100644 index 0000000000..011f8c431a --- /dev/null +++ b/third-party/pjproject/patches/0170-stun-integer-underflow.patch @@ -0,0 +1,26 @@ +From 15663e3f37091069b8c98a7fce680dc04bc8e865 Mon Sep 17 00:00:00 2001 +From: sauwming +Date: Tue, 10 Aug 2021 11:53:25 +0800 +Subject: [PATCH] Merge pull request from GHSA-2qpg-f6wf-w984 + +--- + pjnath/src/pjnath/stun_msg.c | 3 +++ + 1 file changed, 3 insertions(+) + +diff --git a/pjnath/src/pjnath/stun_msg.c b/pjnath/src/pjnath/stun_msg.c +index cd5870f82..bd83351e6 100644 +--- a/pjnath/src/pjnath/stun_msg.c ++++ b/pjnath/src/pjnath/stun_msg.c +@@ -1763,6 +1763,9 @@ static pj_status_t decode_errcode_attr(pj_pool_t *pool, + /* Get pointer to the string in the message */ + value.ptr = ((char*)buf + ATTR_HDR_LEN + 4); + value.slen = attr->hdr.length - 4; ++ /* Make sure the length is never negative */ ++ if (value.slen < 0) ++ value.slen = 0; + + /* Copy the string to the attribute */ + pj_strdup(pool, &attr->reason, &value); +-- +2.25.1 +