Vulnerability Details : CVE-2017-7961
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.
Vulnerability category: Denial of service
Products affected by CVE-2017-7961
- cpe:2.3:a:gnome:libcroco:0.6.12:*:*:*:*:*:*:*
- cpe:2.3:a:gnome:libcroco:0.6.11:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-7961
0.70%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 80 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-7961
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
7.8
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST | |
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2024-07-03 |
CWE ids for CVE-2017-7961
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The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-7961
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http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00043.html
[security-announce] openSUSE-SU-2019:1575-1: moderate: Security update f
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https://security.gentoo.org/glsa/201707-13
libcroco: Multiple vulnerabilities (GLSA 201707-13) — Gentoo securityThird Party Advisory
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http://openwall.com/lists/oss-security/2017/04/24/2
oss-security - Re: libcroco: heap overflow and undefined behaviorMailing List;Patch;Third Party Advisory
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https://bugzilla.suse.com/show_bug.cgi?id=1034482
Bug 1034482 – VUL-1: CVE-2017-7961: libcroco: undefined behavior (tknzr: support only max long rgb values)Issue Tracking;Patch;Third Party Advisory
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https://blogs.gentoo.org/ago/2017/04/17/libcroco-heap-overflow-and-undefined-behavior/
libcroco: heap overflow and undefined behavior | agostino's blogExploit;Patch;Third Party Advisory
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https://git.gnome.org/browse/libcroco/commit/?id=9ad72875e9f08e4c519ef63d44cdbd94aa9504f7
tknzr: support only max long rgb values (9ad72875) · Commits · GNOME / libcroco · GitLabIssue Tracking;Patch;Third Party Advisory
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