Package: libpng
Severity: important
Tags: security, patch

Hi,
the following CVE (Common Vulnerabilities & Exposures) id was
published for libpng.

CVE-2008-3964[0]:
| 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.

As discussed via private email before, the patch is:

-#define PNG_tIME_STRING_LENGTH 30
+#define PNG_tIME_STRING_LENGTH 29

Please ask for a freeze exception for lenny.

If you fix the vulnerability please also make sure to include the
CVE id in your changelog entry.

Cheers
Steffen

For further information see:

[0] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-3964
    http://security-tracker.debian.net/tracker/CVE-2008-3964



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