CVE-2025-59362
published 2025-09-26CVE-2025-59362: Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in asn_build_objid in lib/snmplib/asn1.c.
PriorityP415medium4CVSS 3.1
AVLACLPRNUINSUCNINAL
EPSS
0.36%
28.1th percentile
Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in asn_build_objid in lib/snmplib/asn1.c.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | squid | < squid 5.7-2+deb12u5 (bookworm) | squid 5.7-2+deb12u5 (bookworm) |
| msrc | azl3_squid_6.13-1_on_azure_linux_3.0 | — | — |
| squid-cache | squid | <= 7.1 | — |
| squid | squid | >= 0 < 4.13-10+deb11u6 | 4.13-10+deb11u6 |
| squid | squid | >= 0 < 5.7-2+deb12u5 | 5.7-2+deb12u5 |
| squid | squid | >= 0 < 6.13-2+deb13u1 | 6.13-2+deb13u1 |
| squid | squid | >= 0 < 7.2-1 | 7.2-1 |
CVSS provenance
nvdv3.14.0MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
osv4.0MEDIUM
vendor_msrc8.2HIGH
vendor_debian4.0MEDIUM
vendor_redhat4.0MEDIUM
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Ubuntu
Squid vulnerability
vendor_ubuntu·2025-11-04
CVE-2025-59362 Squid vulnerability
Title: Squid vulnerability
Summary: Squid could be made to crash if it received specially crafted network
traffic.
USN-7804-1 fixed a vulnerability in Squid. This update provides the
corresponding update for Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu
20.04 LTS.
Original advisory details:
It was discovered that Squid incorrectly handled certain long SNMP OIDs. A
remote attacker could possibly use this issue to cause Squid to crash,
resulting in a denial of service.
Instructions: In general, a standard system update will make all the necessary changes.
Ubuntu
Squid vulnerability
vendor_ubuntu·2025-10-06
CVE-2025-59362 Squid vulnerability
Title: Squid vulnerability
Summary: Squid could be made to crash if it received specially crafted network
traffic.
It was discovered that Squid incorrectly handled certain long SNMP OIDs. A
remote attacker could possibly use this issue to cause Squid to crash,
resulting in a denial of service.
Instructions: In general, a standard system update will make all the necessary changes.
Red Hat
squid-cache: Squid cache buffer overflow
vendor_redhat·2025-09-26·CVSS 4.0
CVE-2025-59362 [MEDIUM] CWE-121 squid-cache: Squid cache buffer overflow
squid-cache: Squid cache buffer overflow
Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in asn_build_objid in lib/snmplib/asn1.c.
A stack-based buffer overflow vulnerability exists in the SNMP (Simple Network Management Protocol) message processing component of Squid Cache. The flaw is present in the asn_build_objid function located in the lib/snmplib/asn1.c library, which is responsible for encoding Object Identifiers (OIDs) into the ASN.1 BER format for SNMP responses. Exploitation of this vulnerability is likely to only induce a denial of service in the Squid Cache process.
Mitigation: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment,
Microsoft
Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in asn_build_objid in lib/snmplib/asn1.c.
vendor_msrc·2025-09-09·CVSS 8.2
CVE-2025-59362 [MEDIUM] CWE-172 Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in asn_build_objid in lib/snmplib/asn1.c.
Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in asn_build_objid in lib/snmplib/asn1.c.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
mitre: mitre
Customer Action Required: Yes
Debian
CVE-2025-59362: squid - Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in as...
vendor_debian·2025·CVSS 4.0
CVE-2025-59362 [MEDIUM] CVE-2025-59362: squid - Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in as...
Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in asn_build_objid in lib/snmplib/asn1.c.
Scope: local
bookworm: resolved (fixed in 5.7-2+deb12u5)
bullseye: resolved (fixed in 4.13-10+deb11u6)
forky: resolved (fixed in 7.2-1)
sid: resolved (fixed in 7.2-1)
trixie: resolved (fixed in 6.13-2+deb13u1)
OSV
CVE-2025-59362: Squid through 7
osv·2025-09-26·CVSS 4.0
CVE-2025-59362 [MEDIUM] CVE-2025-59362: Squid through 7
Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in asn_build_objid in lib/snmplib/asn1.c.
GHSA
GHSA-jh85-mgr3-8f33: Squid through 7
ghsa_unreviewed·2025-09-26
CVE-2025-59362 [HIGH] CWE-121 GHSA-jh85-mgr3-8f33: Squid through 7
Squid through 7.1 mishandles ASN.1 encoding of long SNMP OIDs. This occurs in asn_build_objid in lib/snmplib/asn1.c.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-09-26
Published