Mushure memakore matatu ebudiriro, iyo GNU cflow 1.7 utility yakaburitswa, yakagadzirirwa kuvaka inooneka girafu yemabasa ekufona muzvirongwa zveC, izvo zvinogona kushandiswa kurerutsa kudzidza kwekushandisa logic. Girafu inogadzirwa chete zvichienderana nekuongororwa kwezvinyorwa zvezvinyorwa, pasina chikonzero chekuita chirongwa. Chizvarwa chezvose zviri zviviri kumberi uye kumashure execution inoyerera magirafu inotsigirwa, pamwe nechizvarwa chezvinyorwa zvemichinjikwa-mareferensi emakodhi mafaera.
Kuburitswa kwacho kwakakosha pakushandiswa kwerutsigiro rwe "dot" yekubuda fomati ('βformat=dot') yekugadzira mhedzisiro mumutauro weDOT yekuzotevera kuona mupakeji yeGraphviz. Yakawedzera kugona kutsanangura akawanda ekutanga mabasa nekudzokorora '-main' sarudzo; girafu rakaparadzana richagadzirwa kune rimwe nerimwe remabasa aya. Zvakare yakawedzerwa i "--target=FUNCTION" sarudzo, iyo inokutendera iwe kudzikamisa girafu rinobuda kune chete bazi rinosanganisira mamwe mabasa (iyo "--chinangwa" sarudzo inogona kutaurwa kakawanda). Mirairo mitsva yekufamba kwegirafu yakawedzerwa kune cflow-mode: "c" - enda kune yekufona basa, "n" - enda kune rinotevera basa pane rakapihwa nesting level uye "p" - enda kune rakapfuura basa rimwechete. nesting level.
Iyo vhezheni nyowani zvakare inobvisa kusagadzikana kuviri kwakaonekwa kumashure muna 2019 uye kunotungamira kuhuwori hwekurangarira kana uchigadzira akafometwa zvinyorwa zvinyorwa mucflow. Kusagadzikana kwekutanga (CVE-2019-16165) kunokonzerwa nekushandiswa-mushure-kwemahara ndangariro kuwana muparser kodhi (reference basa muparser.c). Kusagadzikana kwechipiri (CVE-2019-16166) kune hukama nebuffer kufashukira mune inoteveratoken() basa. Sekureva kwevagadziri, matambudziko aya haakonzerese kutyisidzira, nekuti anongogumira pakugumiswa kusiri kwemaitiro ekushandisa.
Source: opennet.ru