From d73f74e2cb70297d1373d7fa8921881106dc0b58 Mon Sep 17 00:00:00 2001 From: Tatsuya Kinoshita Date: Fri, 6 Jan 2017 23:18:40 +0900 Subject: Fix multiple vulnerabilities (closes: #850432) - New patch 934_menu.patch to fix buffer overflow (tats/w3m#49) - New patch 935_shiftanchor.patch to fix buffer overflow (tats/w3m#62) - New patch 936_metarefresh.patch to fix buffer overflow (tats/w3m#63) - New patch 937_lineproc0.patch to fix buffer overflow (tats/w3m#67) - New patch 938_lineproc2body.patch to fix buffer overflow (tats/w3m#61) - New patch 939_textarea.patch to fix buffer overflow (tats/w3m#58) - New patch 940_tabattr.patch to fix buffer overflow (tats/w3m#60) - New patch 941_integeredwidth.patch to fix buffer overflow (tats/w3m#70) - New patch 942_tridvalue.patch to fix buffer overflow (tats/w3m#71) - New patch 943_pushlink.patch to fix buffer overflow (tats/w3m#64, #66) - New patch 944_lineproc0.patch to fix use after free (tats/w3m#65) - New patch 945_wtfstrwidth.patch to fix buffer overflow (tats/w3m#57) - New patch 946_strnewsize.patch to fix buffer overflow (tats/w3m#72) - New patch 947_realcolumn.patch to fix buffer overflow (tats/w3m#69) - New patch 948_getmclen.patch to fix buffer overflow (tats/w3m#59, #73, #74, #75, #76, #78, #79, #80, #83, #84) - New patch 949_wtftowcs.patch to fix buffer overflow (tats/w3m#77) - New patch 950_textarea.patch to fix infinite loop (tats/w3m#85) - New patch 951_lineproc0.patch to fix use after free (tats/w3m#81) - New patch 952_formupdatebuffer.patch to fix buffer overflow (tats/w3m#82) - New patch 953_formupdateline.patch to fix buffer overflow (tats/w3m#68#issuecomment-266214643) - New patch 954_wtfparse1.patch to fix buffer overflow (tats/w3m#68) --- debian/patches/943_pushlink.patch | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) create mode 100644 debian/patches/943_pushlink.patch (limited to 'debian/patches/943_pushlink.patch') diff --git a/debian/patches/943_pushlink.patch b/debian/patches/943_pushlink.patch new file mode 100644 index 0000000..3b24cb4 --- /dev/null +++ b/debian/patches/943_pushlink.patch @@ -0,0 +1,32 @@ +Subject: Prevent negative values for offset and pos in push_link() +From: Tatsuya Kinoshita +Bug-Debian: https://github.com/tats/w3m/issues/64 +Bug-Debian: https://github.com/tats/w3m/issues/66 +Origin: https://anonscm.debian.org/cgit/collab-maint/w3m.git/commit/?id=ecf57714191b77142da74035b748262cdc80dfb7 + +--- + file.c | 8 ++++++-- + 1 file changed, 6 insertions(+), 2 deletions(-) + +diff --git a/file.c b/file.c +index 330ae3a..483180a 100644 +--- a/file.c ++++ b/file.c +@@ -2307,8 +2307,12 @@ push_link(int cmd, int offset, int pos) + struct link_stack *p; + p = New(struct link_stack); + p->cmd = cmd; +- p->offset = offset; +- p->pos = pos; ++ p->offset = (short)offset; ++ if (p->offset < 0) ++ p->offset = 0; ++ p->pos = (short)pos; ++ if (p->pos < 0) ++ p->pos = 0; + p->next = link_stack; + link_stack = p; + } +-- +2.10.2 + -- cgit v1.2.3