Use After Free

Use-after-free vulnerability in the GIFReadNextExtension function in lib/pngxtern/gif/gifread.c in OptiPNG 0.6.2 and earlier allows context-dependent attackers to cause a denial of service (application crash) via a crafted GIF image that causes the realloc function to return a new pointer, which triggers memory corruption when the old pointer is accessed.Show less

Use-after-free vulnerability in the NetWare Core Protocol (NCP) feature in Novell eDirectory 8.7.3 SP10 before 8.7.3 SP10 FTF1 and 8.8 SP2 for Windows allows remote attackers to cause a denial of service and possibly execute arbitrary code via a sequence of "Get NCP Extension Information By Name" requests that cause one thread to operate on memory after it has been freed in another thread, which triggers memory corruption, aka Novell Bug 373852.Show less

arch/x86/kernel/ptrace.c in the Linux kernel before 2.6.25.10 on the x86_64 platform leaks task_struct references into the sys32_ptrace function, which allows local users to cause a denial of service (system crash) or have unspecified other impact via unknown vectors, possibly a use-after-free vulnerability.Show less

Use-after-free vulnerability in Microsoft Internet Explorer 6 SP1, 6 SP2, and and 7 allows remote attackers to execute arbitrary code by assigning malformed values to certain properties, as demonstrated using the by property of an animateMotion SVG element, aka "Property Memory Corruption Vulnerability."Show less

Use-after-free vulnerability in the BitTorrent support in Opera before 9.22 allows user-assisted remote attackers to execute arbitrary code via a crafted header in a torrent file, which leaves a dangling pointer to an invalid object.Show less

The clip_mkip function in net/atm/clip.c of the ATM subsystem in Linux kernel allows remote attackers to cause a denial of service (panic) via unknown vectors that cause the ATM subsystem to access the memory of socket buffers after they are freed (freed pointer dereference).Show less

Use-after-free vulnerability in Sendmail before 8.13.8 allows remote attackers to cause a denial of service (crash) via a long "header line", which causes a previously freed variable to be referenced. NOTE: the original developer has disputed the severity of this issue, saying "The only denial of service that is possible here is to fill up the disk with core dumps if the OS actually generates different core dumps (which is unlikely)... the bug is in the shutdown code (finis()) which leads directly to exit(3), i.e., the process would terminate anyway, no mail delivery or receiption is affected."Show less