From: Mingli Yu <mingli...@windriver.com> CVE-2021-22925
Reported-by: Red Hat Product Security Bug: https://curl.se/docs/CVE-2021-22925.html Signed-off-by: Mingli Yu <mingli...@windriver.com> Signed-off-by: Anuj Mittal <anuj.mit...@intel.com> --- .../curl/curl/CVE-2021-22925.patch | 50 +++++++++++++++++++ meta/recipes-support/curl/curl_7.75.0.bb | 1 + 2 files changed, 51 insertions(+) create mode 100644 meta/recipes-support/curl/curl/CVE-2021-22925.patch diff --git a/meta/recipes-support/curl/curl/CVE-2021-22925.patch b/meta/recipes-support/curl/curl/CVE-2021-22925.patch new file mode 100644 index 0000000000..e3009c9533 --- /dev/null +++ b/meta/recipes-support/curl/curl/CVE-2021-22925.patch @@ -0,0 +1,50 @@ +From 894f6ec730597eb243618d33cc84d71add8d6a8a Mon Sep 17 00:00:00 2001 +From: Daniel Stenberg <dan...@haxx.se> +Date: Sat, 12 Jun 2021 18:25:15 +0200 +Subject: [PATCH] telnet: fix option parser to not send uninitialized contents + +CVE-2021-22925 + +Reported-by: Red Hat Product Security +Bug: https://curl.se/docs/CVE-2021-22925.html + +CVE: CVE-2021-22925 + +Upstream-Status: Backport [https://github.com/curl/curl/commit/894f6ec730597eb243618d33cc84d71add8d6a8a] + +Signed-off-by: Mingli Yu <mingli...@windriver.com> +--- + lib/telnet.c | 17 +++++++++++------ + 1 file changed, 11 insertions(+), 6 deletions(-) + +diff --git a/lib/telnet.c b/lib/telnet.c +index 1d3024ec4..a81bb81c3 100644 +--- a/lib/telnet.c ++++ b/lib/telnet.c +@@ -920,12 +920,17 @@ static void suboption(struct Curl_easy *data) + size_t tmplen = (strlen(v->data) + 1); + /* Add the variable only if it fits */ + if(len + tmplen < (int)sizeof(temp)-6) { +- if(sscanf(v->data, "%127[^,],%127s", varname, varval) == 2) { +- msnprintf((char *)&temp[len], sizeof(temp) - len, +- "%c%s%c%s", CURL_NEW_ENV_VAR, varname, +- CURL_NEW_ENV_VALUE, varval); +- len += tmplen; +- } ++ int rv; ++ char sep[2] = ""; ++ varval[0] = 0; ++ rv = sscanf(v->data, "%127[^,]%1[,]%127s", varname, sep, varval); ++ if(rv == 1) ++ len += msnprintf((char *)&temp[len], sizeof(temp) - len, ++ "%c%s", CURL_NEW_ENV_VAR, varname); ++ else if(rv >= 2) ++ len += msnprintf((char *)&temp[len], sizeof(temp) - len, ++ "%c%s%c%s", CURL_NEW_ENV_VAR, varname, ++ CURL_NEW_ENV_VALUE, varval); + } + } + msnprintf((char *)&temp[len], sizeof(temp) - len, +-- +2.17.1 + diff --git a/meta/recipes-support/curl/curl_7.75.0.bb b/meta/recipes-support/curl/curl_7.75.0.bb index 42be2eb0b5..b2aad0bbc2 100644 --- a/meta/recipes-support/curl/curl_7.75.0.bb +++ b/meta/recipes-support/curl/curl_7.75.0.bb @@ -17,6 +17,7 @@ SRC_URI = "https://curl.haxx.se/download/curl-${PV}.tar.bz2 \ file://vtls-fix-warning.patch \ file://CVE-2021-22898.patch \ file://CVE-2021-22897.patch \ + file://CVE-2021-22925.patch \ " SRC_URI[sha256sum] = "50552d4501c178e4cc68baaecc487f466a3d6d19bbf4e50a01869effb316d026" -- 2.31.1
-=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#154643): https://lists.openembedded.org/g/openembedded-core/message/154643 Mute This Topic: https://lists.openembedded.org/mt/84771264/21656 Group Owner: openembedded-core+ow...@lists.openembedded.org Unsubscribe: https://lists.openembedded.org/g/openembedded-core/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
