diff options
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 */ |