CVE-2017-9935: Buffer Overflow
First published: Mon Jun 26 2017(Updated: )
In LibTIFF 4.0.8, there is a heap-based buffer overflow in the t2p_write_pdf function in tools/tiff2pdf.c. This heap overflow could lead to different damages. For example, a crafted TIFF document can lead to an out-of-bounds read in TIFFCleanup, an invalid free in TIFFClose or t2p_free, memory corruption in t2p_readwrite_pdf_image, or a double free in t2p_free. Given these possibilities, it probably could cause arbitrary code execution.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/tiff | 4.2.0-1+deb11u5 4.2.0-1+deb11u6 4.5.0-6+deb12u2 4.5.0-6+deb12u1 4.5.1+git230720-5 | |
| libtiff | <=4.0.8 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 | |
| Ubuntu | =17.10 | |
| Debian | =7.0 | |
| Debian | =8.0 | |
| Debian | =9.0 |
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Reference Links
- http://bugzilla.maptools.org/show_bug.cgi?id=2704
- http://www.securityfocus.com/bid/99296
- https://lists.debian.org/debian-lts-announce/2017/12/msg00008.html
- https://usn.ubuntu.com/3606-1/
- https://www.debian.org/security/2018/dsa-4100
- https://launchpad.net/bugs/cve/CVE-2017-9935
- https://gitlab.com/libtiff/libtiff/commit/3dd8f6a357981a4090f126ab9025056c938b6940
- https://security-tracker.debian.org/tracker/CVE-2017-9935
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-9935
- https://nvd.nist.gov/vuln/detail/CVE-2017-9935
- https://ubuntu.com/security/CVE-2017-9935
Frequently Asked Questions
What is the severity of CVE-2017-9935?
CVE-2017-9935 is classified as a high-severity vulnerability due to the potential for a heap-based buffer overflow leading to memory corruption.
How do I fix CVE-2017-9935?
To remediate CVE-2017-9935, upgrade to a fixed version of LibTIFF, such as 4.2.0-1+deb11u5 or later.
Which versions of LibTIFF are affected by CVE-2017-9935?
CVE-2017-9935 affects LibTIFF versions up to and including 4.0.8.
What software packages are vulnerable to CVE-2017-9935?
Vulnerable packages related to CVE-2017-9935 include tiff on Debian systems and multiple versions of LibTIFF.
What could happen if I am affected by CVE-2017-9935?
If affected by CVE-2017-9935, a crafted TIFF document could lead to out-of-bounds reads or memory corruption, potentially resulting in application crashes or exploitation.
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