When OIDCStripCookies is set and a crafted cookie supplied, a NULL pointer dereference would occur, resulting in a segmentation fault. This could be used in a Denial-of-Service attack and thus presents an availability risk.
OIDCStripCookies
Upgrade to a version >= 2.4.13.2. The patch is recorded here: https://github.com/OpenIDC/mod_auth_openidc/blame/3f11976dab56af0a46a7dddb7a275cc16d6eb726/src/mod_auth_openidc.c#L178-L179
Avoid using OIDCStripCookies.
Impact
When
OIDCStripCookiesis set and a crafted cookie supplied, a NULL pointer dereference would occur, resulting in a segmentation fault. This could be used in a Denial-of-Service attack and thus presents an availability risk.Patches
Upgrade to a version >= 2.4.13.2. The patch is recorded here:
https://github.com/OpenIDC/mod_auth_openidc/blame/3f11976dab56af0a46a7dddb7a275cc16d6eb726/src/mod_auth_openidc.c#L178-L179
Workarounds
Avoid using
OIDCStripCookies.