diff options
Diffstat (limited to 'meta-openbmc-mods/meta-common/recipes-extended/shadow/shadow')
| -rw-r--r-- | meta-openbmc-mods/meta-common/recipes-extended/shadow/shadow/CVE-2023-29383_1.patch | 42 | ||||
| -rw-r--r-- | meta-openbmc-mods/meta-common/recipes-extended/shadow/shadow/CVE-2023-29383_2.patch | 58 |
2 files changed, 100 insertions, 0 deletions
diff --git a/meta-openbmc-mods/meta-common/recipes-extended/shadow/shadow/CVE-2023-29383_1.patch b/meta-openbmc-mods/meta-common/recipes-extended/shadow/shadow/CVE-2023-29383_1.patch new file mode 100644 index 000000000..37be3f907 --- /dev/null +++ b/meta-openbmc-mods/meta-common/recipes-extended/shadow/shadow/CVE-2023-29383_1.patch @@ -0,0 +1,42 @@ +From e5905c4b84d4fb90aefcd96ee618411ebfac663d Mon Sep 17 00:00:00 2001 +From: tomspiderlabs <128755403+tomspiderlabs@users.noreply.github.com> +Date: Thu, 23 Mar 2023 23:39:38 +0000 +Subject: [PATCH] Added control character check + +Added control character check, returning -1 (to "err") if control characters are present. +--- + lib/fields.c | 11 +++++++---- + 1 file changed, 7 insertions(+), 4 deletions(-) + +diff --git a/lib/fields.c b/lib/fields.c +index 640be931f..fb51b5829 100644 +--- a/lib/fields.c ++++ b/lib/fields.c +@@ -21,9 +21,9 @@ + * + * The supplied field is scanned for non-printable and other illegal + * characters. +- * + -1 is returned if an illegal character is present. +- * + 1 is returned if no illegal characters are present, but the field +- * contains a non-printable character. ++ * + -1 is returned if an illegal or control character is present. ++ * + 1 is returned if no illegal or control characters are present, ++ * but the field contains a non-printable character. + * + 0 is returned otherwise. + */ + int valid_field (const char *field, const char *illegal) +@@ -45,10 +45,13 @@ int valid_field (const char *field, const char *illegal) + } + + if (0 == err) { +- /* Search if there are some non-printable characters */ ++ /* Search if there are non-printable or control characters */ + for (cp = field; '\0' != *cp; cp++) { + if (!isprint (*cp)) { + err = 1; ++ } ++ if (!iscntrl (*cp)) { ++ err = -1; + break; + } + } diff --git a/meta-openbmc-mods/meta-common/recipes-extended/shadow/shadow/CVE-2023-29383_2.patch b/meta-openbmc-mods/meta-common/recipes-extended/shadow/shadow/CVE-2023-29383_2.patch new file mode 100644 index 000000000..7def7fc7d --- /dev/null +++ b/meta-openbmc-mods/meta-common/recipes-extended/shadow/shadow/CVE-2023-29383_2.patch @@ -0,0 +1,58 @@ +From 2eaea70111f65b16d55998386e4ceb4273c19eb4 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Christian=20G=C3=B6ttsche?= <cgzones@googlemail.com> +Date: Fri, 31 Mar 2023 14:46:50 +0200 +Subject: [PATCH] Overhaul valid_field() + +e5905c4b ("Added control character check") introduced checking for +control characters but had the logic inverted, so it rejects all +characters that are not control ones. + +Cast the character to `unsigned char` before passing to the character +checking functions to avoid UB. + +Use strpbrk(3) for the illegal character test and return early. +--- + lib/fields.c | 24 ++++++++++-------------- + 1 file changed, 10 insertions(+), 14 deletions(-) + +diff --git a/lib/fields.c b/lib/fields.c +index fb51b5829..539292485 100644 +--- a/lib/fields.c ++++ b/lib/fields.c +@@ -37,26 +37,22 @@ int valid_field (const char *field, const char *illegal) + + /* For each character of field, search if it appears in the list + * of illegal characters. */ ++ if (illegal && NULL != strpbrk (field, illegal)) { ++ return -1; ++ } ++ ++ /* Search if there are non-printable or control characters */ + for (cp = field; '\0' != *cp; cp++) { +- if (strchr (illegal, *cp) != NULL) { ++ unsigned char c = *cp; ++ if (!isprint (c)) { ++ err = 1; ++ } ++ if (iscntrl (c)) { + err = -1; + break; + } + } + +- if (0 == err) { +- /* Search if there are non-printable or control characters */ +- for (cp = field; '\0' != *cp; cp++) { +- if (!isprint (*cp)) { +- err = 1; +- } +- if (!iscntrl (*cp)) { +- err = -1; +- break; +- } +- } +- } +- + return err; + } + |