Vulnerability Details : CVE-2020-26154
url.cpp in libproxy through 0.4.15 is prone to a buffer overflow when PAC is enabled, as demonstrated by a large PAC file that is delivered without a Content-length header.
Vulnerability category: Overflow
Products affected by CVE-2020-26154
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*
- cpe:2.3:a:libproxy_project:libproxy:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-26154
0.96%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 83 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-26154
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 | |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2020-26154
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-26154
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WZVZXTFMFTSML3J6OOCDBDYH474BRJSW/
[SECURITY] Fedora 32 Update: libproxy-0.4.15-19.fc32 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://www.debian.org/security/2020/dsa-4800
Debian -- Security Information -- DSA-4800-1 libproxyThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2020/11/msg00024.html
[SECURITY] [DLA 2450-1] libproxy security updateMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3BID3HVHAF6DA3YJOFDBSAZSMR3ODNIW/
[SECURITY] Fedora 33 Update: libproxy-0.4.15-25.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00033.html
[security-announce] openSUSE-SU-2020:1680-1: important: Security updateIssue Tracking;Third Party Advisory
-
https://bugs.debian.org/968366
#968366 - libproxy: CVE-2020-26154: buffer overflow when PAC is enabled - Debian Bug report logsIssue Tracking;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00030.html
[security-announce] openSUSE-SU-2020:1676-1: important: Security updateIssue Tracking;Third Party Advisory
-
https://github.com/libproxy/libproxy/pull/126
Fix buffer overflow when PAC is enabled by lifeibiren · Pull Request #126 · libproxy/libproxy · GitHubThird Party Advisory
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