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| author | Leo Famulari <leo@famulari.name> | 2017-05-27 11:01:25 -0400 |
|---|---|---|
| committer | Leo Famulari <leo@famulari.name> | 2017-05-28 14:41:46 -0400 |
| commit | 0fd0bb56a806d3da4158e1744249de0296161fa6 (patch) | |
| tree | 2110f5aa1002294c2f951702ea4186d250cc2c63 /gnu/packages/patches/rxvt-unicode-escape-sequences.patch | |
| parent | 5cd0122e60edc9ed0ee365aebef960cf89f0fd19 (diff) | |
| download | guix-patches-0fd0bb56a806d3da4158e1744249de0296161fa6.tar guix-patches-0fd0bb56a806d3da4158e1744249de0296161fa6.tar.gz | |
gnu: rxvt-unicode: Disable an unwanted code execution vector.
* gnu/packages/patches/rxvt-unicode-escape-sequences.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/xdisorg.scm (rxvt-unicode)[source]: Use it.
Diffstat (limited to 'gnu/packages/patches/rxvt-unicode-escape-sequences.patch')
| -rw-r--r-- | gnu/packages/patches/rxvt-unicode-escape-sequences.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gnu/packages/patches/rxvt-unicode-escape-sequences.patch b/gnu/packages/patches/rxvt-unicode-escape-sequences.patch new file mode 100644 index 0000000000..064dd51e2d --- /dev/null +++ b/gnu/packages/patches/rxvt-unicode-escape-sequences.patch @@ -0,0 +1,35 @@ +This patch prevents a code execution vector involving terminal escape +sequences when rxvt-unicode is in "secure mode". + +This change was spurred by the following conversation on the +oss-security mailing list: + +Problem description and proof of concept: +http://seclists.org/oss-sec/2017/q2/190 + +Upstream response: +http://seclists.org/oss-sec/2017/q2/291 + +Patch copied from upstream source repository: +http://cvs.schmorp.de/rxvt-unicode/src/command.C?r1=1.582&r2=1.583 + +--- rxvt-unicode/src/command.C 2016/07/14 05:33:26 1.582 ++++ rxvt-unicode/src/command.C 2017/05/18 02:43:18 1.583 +@@ -2695,7 +2695,7 @@ + /* kidnapped escape sequence: Should be 8.3.48 */ + case C1_ESA: /* ESC G */ + // used by original rxvt for rob nations own graphics mode +- if (cmd_getc () == 'Q') ++ if (cmd_getc () == 'Q' && option (Opt_insecure)) + tt_printf ("\033G0\012"); /* query graphics - no graphics */ + break; + +@@ -2914,7 +2914,7 @@ + break; + + case CSI_CUB: /* 8.3.18: (1) CURSOR LEFT */ +- case CSI_HPB: /* 8.3.59: (1) CHARACTER POSITION BACKWARD */ ++ case CSI_HPB: /* 8.3.59: (1) CHARACTER POSITION BACKWARD */ + #ifdef ISO6429 + arg[0] = -arg[0]; + #else /* emulate common DEC VTs */ |