CVE-2019-12529
published 2019-07-11CVE-2019-12529: An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic Authentication, the…
PriorityP340medium5.9CVSS 3.1
AVNACHPRNUINSUCHINAN
EPSS
8.09%
94.1th percentile
An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic Authentication, the Proxy-Authorization header is parsed via uudecode. uudecode determines how many bytes will be decoded by iterating over the input and checking its table. The length is then used to start decoding the string. There are no checks to ensure that the length it calculates isn't greater than the input buffer. This leads to adjacent memory being decoded as well. An attacker would not be able to retrieve the decoded data unless the Squid maintainer had configured the display of usernames on error pages.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | debian_linux | — | — |
| debian | squid | < squid 4.8-1 (bookworm) | squid 4.8-1 (bookworm) |
| fedoraproject | fedora | — | — |
| opensuse | leap | — | — |
| opensuse | leap | — | — |
| squid-cache | squid | — | — |
| squid-cache | squid | >= 2.0 < 2.7 | 2.7 |
| squid-cache | squid | 3.0 – 3.5.28 | — |
| squid-cache | squid | 4.0 – 4.7 | — |
| squid | squid | >= 0 < 4.8-1 | 4.8-1 |
| squid | squid | >= 0 < 4.8-1 | 4.8-1 |
| squid | squid | >= 0 < 4.8-1 | 4.8-1 |
| squid | squid | >= 0 < 4.8-1 | 4.8-1 |
CVSS provenance
nvdv3.15.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
osv9.8CRITICAL
vendor_ubuntu9.8CRITICAL
vendor_debian5.9MEDIUM
vendor_redhat5.9MEDIUM
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Ubuntu
Squid vulnerabilities
vendor_ubuntu·2019-07-22·CVSS 9.8
CVE-2019-12525 [CRITICAL] Squid vulnerabilities
Title: Squid vulnerabilities
Summary: Several security issues were fixed in Squid.
USN-4065-1 fixed several vulnerabilities in Squid. This update provides
the corresponding update for Ubuntu 12.04 ESM.
Original advisory details:
It was discovered that Squid incorrectly handled Digest authentication. A
remote attacker could possibly use this issue to cause Squid to crash,
resulting in a denial of service. (CVE-2019-12525)
It was discovered that Squid incorrectly handled Basic authentication. A
remote attacker could possibly use this issue to cause Squid to crash,
resulting in a denial of service. (CVE-2019-12529)
Instructions: In general, a standard system update will make all the necessary changes.
Ubuntu
Squid vulnerabilities
vendor_ubuntu·2019-07-18·CVSS 9.8
CVE-2019-12525 [CRITICAL] Squid vulnerabilities
Title: Squid vulnerabilities
Summary: Several security issues were fixed in Squid.
It was discovered that Squid incorrectly handled Digest authentication. A
remote attacker could possibly use this issue to cause Squid to crash,
resulting in a denial of service. (CVE-2019-12525)
It was discovered that Squid incorrectly handled Basic authentication. A
remote attacker could use this issue to cause Squid to crash, resulting in
a denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 19.04. (CVE-2019-12527)
It was discovered that Squid incorrectly handled Basic authentication. A
remote attacker could possibly use this issue to cause Squid to crash,
resulting in a denial of service. (CVE-2019-12529)
Instructions: In general, a standard system update will make
Red Hat
squid: Out of bounds read in Proxy-Authorization header causes DoS
vendor_redhat·2019-07-11·CVSS 5.9
CVE-2019-12529 [MEDIUM] CWE-119 squid: Out of bounds read in Proxy-Authorization header causes DoS
squid: Out of bounds read in Proxy-Authorization header causes DoS
An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic Authentication, the Proxy-Authorization header is parsed via uudecode. uudecode determines how many bytes will be decoded by iterating over the input and checking its table. The length is then used to start decoding the string. There are no checks to ensure that the length it calculates isn't greater than the input buffer. This leads to adjacent memory being decoded as well. An attacker would not be able to retrieve the decoded data unless the Squid maintainer had configured the display of usernames on error pages.
Mitigation: Remove 'auth_param basic ...' configuration settings from squ
Debian
CVE-2019-12529: squid - An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, an...
vendor_debian·2019·CVSS 5.9
CVE-2019-12529 [MEDIUM] CVE-2019-12529: squid - An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, an...
An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic Authentication, the Proxy-Authorization header is parsed via uudecode. uudecode determines how many bytes will be decoded by iterating over the input and checking its table. The length is then used to start decoding the string. There are no checks to ensure that the length it calculates isn't greater than the input buffer. This leads to adjacent memory being decoded as well. An attacker would not be able to retrieve the decoded data unless the Squid maintainer had configured the display of usernames on error pages.
Scope: local
bookworm: resolved (fixed in 4.8-1)
bullseye: resolved (fixed in 4.8-1)
forky: resolved (fixed in 4.8-1)
sid: resolved (fixed in
GHSA
GHSA-99gm-2796-7c8p: An issue was discovered in Squid 2
ghsa_unreviewed·2022-05-24
CVE-2019-12529 [MEDIUM] CWE-125 GHSA-99gm-2796-7c8p: An issue was discovered in Squid 2
An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic Authentication, the Proxy-Authorization header is parsed via uudecode. uudecode determines how many bytes will be decoded by iterating over the input and checking its table. The length is then used to start decoding the string. There are no checks to ensure that the length it calculates isn't greater than the input buffer. This leads to adjacent memory being decoded as well. An attacker would not be able to retrieve the decoded data unless the Squid maintainer had configured the display of usernames on error pages.
OSV
squid, squid3 vulnerabilities
osv·2019-07-18·CVSS 9.8
CVE-2019-12525 [CRITICAL] squid, squid3 vulnerabilities
squid, squid3 vulnerabilities
It was discovered that Squid incorrectly handled Digest authentication. A
remote attacker could possibly use this issue to cause Squid to crash,
resulting in a denial of service. (CVE-2019-12525)
It was discovered that Squid incorrectly handled Basic authentication. A
remote attacker could use this issue to cause Squid to crash, resulting in
a denial of service, or possibly execute arbitrary code. This issue only
affected Ubuntu 19.04. (CVE-2019-12527)
It was discovered that Squid incorrectly handled Basic authentication. A
remote attacker could possibly use this issue to cause Squid to crash,
resulting in a denial of service. (CVE-2019-12529)
OSV
CVE-2019-12529: An issue was discovered in Squid 2
osv·2019-07-11·CVSS 5.9
CVE-2019-12529 [MEDIUM] CVE-2019-12529: An issue was discovered in Squid 2
An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic Authentication, the Proxy-Authorization header is parsed via uudecode. uudecode determines how many bytes will be decoded by iterating over the input and checking its table. The length is then used to start decoding the string. There are no checks to ensure that the length it calculates isn't greater than the input buffer. This leads to adjacent memory being decoded as well. An attacker would not be able to retrieve the decoded data unless the Squid maintainer had configured the display of usernames on error pages.
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2019-12529 squid: Out of bounds read in Proxy-Authorization header causes DoS
bugzilla·2019-07-17·CVSS 5.9
CVE-2019-12529 [MEDIUM] CVE-2019-12529 squid: Out of bounds read in Proxy-Authorization header causes DoS
CVE-2019-12529 squid: Out of bounds read in Proxy-Authorization header causes DoS
An issue was discovered in Squid 2.x through 2.7.STABLE9, 3.x through 3.5.28, and 4.x through 4.7. When Squid is configured to use Basic Authentication, the Proxy-Authorization header is parsed via uudecode. uudecode determines how many bytes will be decoded by iterating over the input and checking its table. The length is then used to start decoding the string. There are no checks to ensure that the length it calculates isn't greater than the input buffer. This leads to adjacent memory being decoded as well. An attacker would not be able to retrieve the decoded data unless the Squid maintainer had configured the display of usernames on error pages.
Reference:
http://www.squid-cache.org/Versions/v4/changese
Bugzilla
CVE-2019-12529 squid: information disclosure in Proxy-Authorization header [fedora-all]
bugzilla·2019-07-17·CVSS 5.9
CVE-2019-12529 [MEDIUM] CVE-2019-12529 squid: information disclosure in Proxy-Authorization header [fedora-all]
CVE-2019-12529 squid: information disclosure in Proxy-Authorization header [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supporte
http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.htmlhttp://www.squid-cache.org/Versions/v4/changesets/http://www.squid-cache.org/Versions/v4/changesets/squid-4-dd46b5417809647f561d8a5e0e74c3aacd235258.patchhttps://github.com/squid-cache/squid/commits/v4https://lists.debian.org/debian-lts-announce/2019/07/msg00018.htmlhttps://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/https://seclists.org/bugtraq/2019/Aug/42https://usn.ubuntu.com/4065-1/https://usn.ubuntu.com/4065-2/https://www.debian.org/security/2019/dsa-4507http://lists.opensuse.org/opensuse-security-announce/2019-11/msg00053.htmlhttp://lists.opensuse.org/opensuse-security-announce/2019-11/msg00056.htmlhttp://www.squid-cache.org/Versions/v4/changesets/http://www.squid-cache.org/Versions/v4/changesets/squid-4-dd46b5417809647f561d8a5e0e74c3aacd235258.patchhttps://github.com/squid-cache/squid/commits/v4https://lists.debian.org/debian-lts-announce/2019/07/msg00018.htmlhttps://lists.debian.org/debian-lts-announce/2020/07/msg00009.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPXN2CLAGN5QSQBTOV5IGVLDOQSRFNTZ/https://seclists.org/bugtraq/2019/Aug/42https://usn.ubuntu.com/4065-1/https://usn.ubuntu.com/4065-2/https://www.debian.org/security/2019/dsa-4507
2019-07-11
Published