Multiple off-by-one errors in libpng before 1.2.32beta01, and 1.4 before 1.4.0beta34, allow context-dependent attackers to cause a denial of service (crash) or have unspecified other impact via a PNG image with crafted zTXt chunks, related to (1) the png_push_read_zTXt function in pngread.c, and possibly related to (2) pngtest.c.

MySQL 5.0 before 5.0.66, 5.1 before 5.1.26, and 6.0 before 6.0.6 does not properly handle a b” (b single-quote single-quote) token, aka an empty bit-string literal, which allows remote attackers to cause a denial of service (daemon crash) by using this token in a SQL statement.

The from_format function in ssmtp.c in ssmtp 2.61 and 2.62, in certain configurations, uses uninitialized memory for the From: field of an e-mail message, which might allow remote attackers to obtain sensitive information (memory contents) in opportunistic circumstances by reading a message.

Unspecified vulnerability in the JDBC Applet Server Service (aka db2jds) in IBM DB2 UDB 8 before Fixpak 17 allows remote attackers to cause a denial of service (service crash) via “malicious packets.”