diff options
Diffstat (limited to 'debian/patches/CVE-2023-41361.patch')
| -rw-r--r-- | debian/patches/CVE-2023-41361.patch | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/debian/patches/CVE-2023-41361.patch b/debian/patches/CVE-2023-41361.patch new file mode 100644 index 0000000..a227dc2 --- /dev/null +++ b/debian/patches/CVE-2023-41361.patch @@ -0,0 +1,43 @@ +From 73ad93a83f18564bb7bff4659872f7ec1a64b05e Mon Sep 17 00:00:00 2001 +From: Donatas Abraitis <donatas@opensourcerouting.org> +Date: Sun, 20 Aug 2023 21:37:25 +0300 +Subject: [PATCH] bgpd: Check the length of the rcv software version + +Make sure we don't exceed the maximum of BGP_MAX_SOFT_VERSION. + +The Capability Length SHOULD be no greater than 64. + +Reported-by: Iggy Frankovic <iggyfran@amazon.com> +Signed-off-by: Donatas Abraitis <donatas@opensourcerouting.org> +(cherry picked from commit b4d09af9194d20a7f9f16995a062f5d8e3d32840) +--- + bgpd/bgp_open.c | 12 +++++++++++- + 1 file changed, 11 insertions(+), 1 deletion(-) + +diff --git a/bgpd/bgp_open.c b/bgpd/bgp_open.c +index 0dd546397..e7e3c2191 100644 +--- a/bgpd/bgp_open.c ++++ b/bgpd/bgp_open.c +@@ -940,8 +940,18 @@ static int bgp_capability_software_version(struct peer *peer, + return -1; + } + +- if (len) { ++ if (len > BGP_MAX_SOFT_VERSION) { ++ flog_warn(EC_BGP_CAPABILITY_INVALID_LENGTH, ++ "%s: Received Software Version, but the length is too big, truncating, from peer %s", ++ __func__, peer->host); ++ stream_get(str, s, BGP_MAX_SOFT_VERSION); ++ stream_forward_getp(s, len - BGP_MAX_SOFT_VERSION); ++ len = BGP_MAX_SOFT_VERSION; ++ } else if (len) { + stream_get(str, s, len); ++ } ++ ++ if (len) { + str[len] = '\0'; + + XFREE(MTYPE_BGP_SOFT_VERSION, peer->soft_version); +-- +2.39.2 + |