Fernando Muñoz discovered that invalid HTML input passed to tidy, an HTML syntax checker and reformatter, could trigger a buffer overflow. This could allow remote attackers to cause a denial of service (crash) or potentially execute arbitrary code. Geoff McLane also discovered that a similar issue could trigger an integer overflow, leading to a memory allocation of 4GB. This could allow remote attackers to cause a denial of service by saturating the target's memory. For the oldstable distribution (wheezy), these problems have been fixed in version 20091223cvs-1.2+deb7u1. For the stable distribution (jessie), these problems have been fixed in version 20091223cvs-1.4+deb8u1. For the unstable distribution (sid), these problems will be fixed soon. We recommend that you upgrade your tidy packages.
Fernando Muñoz discovered that invalid HTML input passed to tidy, an HTML syntax checker and reformatter, could trigger a buffer overflow. This could allow remote attackers to cause a denial of service (crash) or potentially execute arbitrary code.
Geoff McLane also discovered that a similar issue could trigger an integer overflow, leading to a memory allocation of 4GB. This could allow remote attackers to cause a denial of service by saturating the target's memory.
For the oldstable distribution (wheezy), these problems have been fixed in version 20091223cvs-1.2+deb7u1.
For the stable distribution (jessie), these problems have been fixed in version 20091223cvs-1.4+deb8u1.
For the unstable distribution (sid), these problems will be fixed soon.
We recommend that you upgrade your tidy packages.
Vulmon