diff options
| author |   vkumbhar <vkumbhar@mvista.com> | 2023-12-04 19:36:48 +0530 |
|---|---|---|
| committer |   Armin Kuster <akuster808@gmail.com> | 2023-12-17 15:36:42 -0500 |
| commit | 3bcc5bb4deee32f04b4c6ba0a3b342c864f1c03d (patch) | |
| tree | 2154b23192c862949b510d0b9c3f8eb5f9224bf9 /meta-networking | |
| parent | ed41cf1357f13acb0311b5c768558df55bc37128 (diff) | |
| download | meta-openembedded-3bcc5bb4deee32f04b4c6ba0a3b342c864f1c03d.tar.gz | |
squid: fix CVE-2023-46847 Denial of Service in HTTP Digest Authentication
Upstream-Status: Backport from https://github.com/squid-cache/squid/commit/052cf082b0faaef4eaaa4e94119d7a1437aac4a3
Signed-off-by: Vivek Kumbhar <vkumbhar@mvista.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Diffstat (limited to 'meta-networking')
| -rw-r--r-- | meta-networking/recipes-daemons/squid/files/CVE-2023-46847.patch | 47 | ||||
| -rw-r--r-- | meta-networking/recipes-daemons/squid/squid_4.9.bb | 1 |
2 files changed, 48 insertions, 0 deletions
diff --git a/meta-networking/recipes-daemons/squid/files/CVE-2023-46847.patch b/meta-networking/recipes-daemons/squid/files/CVE-2023-46847.patch new file mode 100644 index 0000000000..d9f29569d1 --- /dev/null +++ b/meta-networking/recipes-daemons/squid/files/CVE-2023-46847.patch @@ -0,0 +1,47 @@ +From 052cf082b0faaef4eaaa4e94119d7a1437aac4a3 Mon Sep 17 00:00:00 2001 +From: squidadm <squidadm@users.noreply.github.com> +Date: Wed, 18 Oct 2023 04:50:56 +1300 +Subject: [PATCH] Fix stack buffer overflow when parsing Digest Authorization + (#1517) + +The bug was discovered and detailed by Joshua Rogers at +https://megamansec.github.io/Squid-Security-Audit/digest-overflow.html +where it was filed as "Stack Buffer Overflow in Digest Authentication". + +--------- + +Co-authored-by: Alex Bason <nonsleepr@gmail.com> +Co-authored-by: Amos Jeffries <yadij@users.noreply.github.com> + +Upstream-Status: Backport [https://github.com/squid-cache/squid/commit/052cf082b0faaef4eaaa4e94119d7a1437aac4a3] +CVE: CVE-2023-46847 +Signed-off-by: Vivek Kumbhar <vkumbhar@mvista.com> +--- + src/auth/digest/Config.cc | 10 +++++++--- + 1 file changed, 7 insertions(+), 3 deletions(-) + +diff --git a/src/auth/digest/Config.cc b/src/auth/digest/Config.cc +index 2d25fee..4c206e1 100644 +--- a/src/auth/digest/Config.cc ++++ b/src/auth/digest/Config.cc +@@ -862,11 +862,15 @@ Auth::Digest::Config::decode(char const *proxy_auth, const char *aRequestRealm) + break; + + case DIGEST_NC: +- if (value.size() != 8) { ++ if (value.size() == 8) { ++ // for historical reasons, the nc value MUST be exactly 8 bytes ++ static_assert(sizeof(digest_request->nc) == 8 + 1, "bad nc buffer size"); ++ xstrncpy(digest_request->nc, value.rawBuf(), value.size() + 1); ++ debugs(29, 9, "Found noncecount '" << digest_request->nc << "'"); ++ } else { + debugs(29, 9, "Invalid nc '" << value << "' in '" << temp << "'"); ++ digest_request->nc[0] = 0; + } +- xstrncpy(digest_request->nc, value.rawBuf(), value.size() + 1); +- debugs(29, 9, "Found noncecount '" << digest_request->nc << "'"); + break; + + case DIGEST_CNONCE: +-- +2.40.1 diff --git a/meta-networking/recipes-daemons/squid/squid_4.9.bb b/meta-networking/recipes-daemons/squid/squid_4.9.bb index 19949acd84..c9a92772d1 100644 --- a/meta-networking/recipes-daemons/squid/squid_4.9.bb +++ b/meta-networking/recipes-daemons/squid/squid_4.9.bb @@ -24,6 +24,7 @@ SRC_URI = "http://www.squid-cache.org/Versions/v${MAJ_VER}/${BPN}-${PV}.tar.bz2 file://0001-configure-Check-for-Wno-error-format-truncation-comp.patch \ file://0001-tools.cc-fixed-unused-result-warning.patch \ file://0001-splay.cc-fix-bind-is-not-a-member-of-std.patch \ + file://CVE-2023-46847.patch \ " SRC_URI_remove_toolchain-clang = "file://0001-configure-Check-for-Wno-error-format-truncation-comp.patch" |