CVE-2017-7961: Buffer Overflow
First published: Wed Apr 19 2017(Updated: )
** DISPUTED ** The cr_tknzr_parse_rgb function in cr-tknzr.c in libcroco 0.6.11 and 0.6.12 has an "outside the range of representable values of type long" undefined behavior issue, which might allow remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted CSS file. NOTE: third-party analysis reports "This is not a security issue in my view. The conversion surely is truncating the double into a long value, but there is no impact as the value is one of the RGB components."
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| libcroco | =0.6.11 | |
| libcroco | =0.6.12 |
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Reference Links
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00043.html
- http://openwall.com/lists/oss-security/2017/04/24/2
- https://blogs.gentoo.org/ago/2017/04/17/libcroco-heap-overflow-and-undefined-behavior/
- https://bugzilla.suse.com/show_bug.cgi?id=1034482
- https://git.gnome.org/browse/libcroco/commit/?id=9ad72875e9f08e4c519ef63d44cdbd94aa9504f7
- https://security.gentoo.org/glsa/201707-13
Frequently Asked Questions
What is the severity of CVE-2017-7961?
CVE-2017-7961 has a moderate severity rating due to its potential to cause denial of service by crashing applications.
How do I fix CVE-2017-7961?
To fix CVE-2017-7961, you should upgrade to a patched version of libcroco that is not affected by this vulnerability.
What types of attacks can CVE-2017-7961 lead to?
CVE-2017-7961 may allow remote attackers to cause a denial of service or potentially execute unspecified other attacks.
Which versions of libcroco are affected by CVE-2017-7961?
CVE-2017-7961 affects libcroco versions 0.6.11 and 0.6.12.
Is CVE-2017-7961 considered a critical vulnerability?
No, CVE-2017-7961 is not classified as a critical vulnerability but does pose a risk of application instability.
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