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CVE-2023-46847

HIGHCVSS 7.5/10EPSS 85.94%

Last modified

CVE-2023-46847 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.. EPSS estimates a 85.94% chance of exploitation in the next 30 days.

Description

Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
85.94%

99.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Squid-CacheSquid>= 3.2.0.1, < 6.4
RedhatEnterprise Linux8.0
RedhatEnterprise Linux9.0
RedhatEnterprise Linux Eus8.6
RedhatEnterprise Linux Eus8.8
RedhatEnterprise Linux Eus9.0
RedhatEnterprise Linux Eus9.2
RedhatEnterprise Linux For Arm 648.0_aarch64
RedhatEnterprise Linux For Ibm Z Systems8.0_s390x
RedhatEnterprise Linux For Power Little Endian8.0_ppc64le
RedhatEnterprise Linux Server7.0
RedhatEnterprise Linux Server Aus8.2
RedhatEnterprise Linux Server Aus8.4
RedhatEnterprise Linux Server Aus8.6
RedhatEnterprise Linux Server Aus9.2
RedhatEnterprise Linux Server Tus8.2
RedhatEnterprise Linux Server Tus8.4
RedhatEnterprise Linux Server Tus8.6
RedhatEnterprise Linux Server Tus8.8
RedhatEnterprise Linux Server Tus9.2
RedhatEnterprise Linux Workstation7.0

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2023-46847?
Squid is vulnerable to a Denial of Service, where a remote attacker can perform buffer overflow attack by writing up to 2 MB of arbitrary data to heap memory when Squid is configured to accept HTTP Digest Authentication.
How severe is CVE-2023-46847?
CVE-2023-46847 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 85.94% probability of exploitation in the next 30 days.
How do I fix CVE-2023-46847?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-46847?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST