ghsa-496f-x7cq-cq39
Vulnerability from github
Impact
An out-of-bounds read was found in Exiv2 versions v0.28.5 and earlier. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file.
Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as delete.
Patches
The bug is fixed in version v0.28.6.
Credit
Thank you to @dragonArthurX for reporting this issue.
Details (from original report by @dragonArthurX )
Version: Tested on v0.28.5 (latest official release) Commit: 907169fa643c2c74c14fd4106e55eaeee3634d9f
Platform: Ubuntu 20.04.6 LTS (x86_64)
Build Steps:
bash
git clone https://github.com/Exiv2/exiv2.git
cd exiv2
git checkout v0.28.5
mkdir build-v0.28.5 && cd build-v0.28.5
cmake -DCMAKE_C_COMPILER=/fuzzer/afl-clang-fast -DCMAKE_CXX_COMPILER=/fuzzer/afl-clang-fast++ -DCMAKE_C_FLAGS="-g -fsanitize=address" -DCMAKE_CXX_FLAGS="-g -fsanitize=address" -DBUILD_SHARED_LIBS=OFF ../
Command line to reproduce:
bash
/home/exiv2/build/bin/exiv2 -d a -f /home/poc
Crash Output:
```
AddressSanitizer:DEADLYSIGNAL
================================================================ =
==376531==ERROR: AddressSanitizer: SEGV on unknown address 0x7fd92236b0e7 (pc 0x7fd82314dcd2 bp 0x7ffd540ceba0 sp 0x7ffd540ce358 T0)
==376531==The signal is caused by a READ memory access.
#0 0x7fd82314dcd2 /build/glibc-B3wQXB/glibc-2.31/string/../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:383
#1 0x4ed131 in __asan_memcpy (/home/exiv2/build-v0.28.5/bin/exiv2+0x4ed131)
#2 0x6184b1 in Exiv2::MemIo::write(unsigned char const, unsigned long) /home/exiv2/src/basicio.cpp:704:5
#3 0xad336d in (anonymous namespace)::writeTemp(Exiv2::BasicIo&, unsigned char const, unsigned long) /home/exiv2/src/epsimage.cpp:90:14
#4 0xac3a07 in (anonymous namespace)::readWriteEpsMetadata(Exiv2::BasicIo&, std::__cxx11::basic_string
AddressSanitizer can not provide additional info. SUMMARY: AddressSanitizer: SEGV /build/glibc-B3wQXB/glibc-2.31/string/../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:383 ==376531==ABORTING ```
{ "affected": [ { "package": { "ecosystem": "PyPI", "name": "Exiv2" }, "ranges": [ { "events": [ { "introduced": "0" }, { "last_affected": "0.17.3" } ], "type": "ECOSYSTEM" } ] } ], "aliases": [ "CVE-2025-54080" ], "database_specific": { "cwe_ids": [ "CWE-125" ], "github_reviewed": true, "github_reviewed_at": "2025-08-29T14:49:41Z", "nvd_published_at": "2025-08-29T15:15:35Z", "severity": "LOW" }, "details": "### Impact\nAn out-of-bounds read was found in Exiv2 versions v0.28.5 and earlier. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The out-of-bounds read is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to cause a denial of service by crashing Exiv2, if they can trick the victim into running Exiv2 on a crafted image file.\n\nNote that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as delete.\n\n### Patches\nThe bug is fixed in version v0.28.6.\n\n### Credit\nThank you to @dragonArthurX for reporting this issue.\n\n### Details (from original report by @dragonArthurX )\n**Version:**\nTested on v0.28.5 (latest official release)\nCommit: 907169fa643c2c74c14fd4106e55eaeee3634d9f\n\n**Platform:**\nUbuntu 20.04.6 LTS (x86_64)\n\n**Build Steps:**\n```bash\ngit clone https://github.com/Exiv2/exiv2.git\ncd exiv2\ngit checkout v0.28.5\nmkdir build-v0.28.5 \u0026\u0026 cd build-v0.28.5\ncmake -DCMAKE_C_COMPILER=/fuzzer/afl-clang-fast -DCMAKE_CXX_COMPILER=/fuzzer/afl-clang-fast++ -DCMAKE_C_FLAGS=\"-g -fsanitize=address\" -DCMAKE_CXX_FLAGS=\"-g -fsanitize=address\" -DBUILD_SHARED_LIBS=OFF ../\n```\n\n**Command line to reproduce:**\n```bash\n/home/exiv2/build/bin/exiv2 -d a -f /home/poc \n```\n\n**Crash Output:** \n```\nAddressSanitizer:DEADLYSIGNAL\n ================================================================ = \n==376531==ERROR: AddressSanitizer: SEGV on unknown address 0x7fd92236b0e7 (pc 0x7fd82314dcd2 bp 0x7ffd540ceba0 sp 0x7ffd540ce358 T0)\n==376531==The signal is caused by a READ memory access.\n #0 0x7fd82314dcd2 /build/glibc-B3wQXB/glibc-2.31/string/../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:383\n #1 0x4ed131 in __asan_memcpy (/home/exiv2/build-v0.28.5/bin/exiv2+0x4ed131)\n #2 0x6184b1 in Exiv2::MemIo::write(unsigned char const*, unsigned long) /home/exiv2/src/basicio.cpp:704:5\n #3 0xad336d in (anonymous namespace)::writeTemp(Exiv2::BasicIo\u0026, unsigned char const*, unsigned long) /home/exiv2/src/epsimage.cpp:90:14\n #4 0xac3a07 in (anonymous namespace)::readWriteEpsMetadata(Exiv2::BasicIo\u0026, std::__cxx11::basic_string\u003cchar, std::char_traits\u003cchar\u003e, std::allocator\u003cchar\u003e \u003e\u0026, std::vector\u003cExiv2::NativePreview, std::allocator\u003cExiv2::NativePreview\u003e \u003e\u0026, bool) /home/exiv2/src/epsimage.cpp:1009:7\n #5 0xad1175 in Exiv2::EpsImage::writeMetadata() /home/exiv2/src/epsimage.cpp:1103:3\n #6 0x5d2383 in Action::Erase::run(std::__cxx11::basic_string\u003cchar, std::char_traits\u003cchar\u003e, std::allocator\u003cchar\u003e \u003e const\u0026) /home/exiv2/app/actions.cpp:713:14\n #7 0x522d02 in main /home/exiv2/app/exiv2.cpp:177:25\n #8 0x7fd8230b6082 in __libc_start_main /build/glibc-B3wQXB/glibc-2.31/csu/../csu/libc-start.c:308:16\n #9 0x4714dd in _start (/home/exiv2/build-v0.28.5/bin/exiv2+0x4714dd)\n\nAddressSanitizer can not provide additional info.\nSUMMARY: AddressSanitizer: SEGV /build/glibc-B3wQXB/glibc-2.31/string/../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:383 \n==376531==ABORTING\n```", "id": "GHSA-496f-x7cq-cq39", "modified": "2025-08-29T21:03:53Z", "published": "2025-08-29T14:49:41Z", "references": [ { "type": "WEB", "url": "https://github.com/Exiv2/exiv2/security/advisories/GHSA-496f-x7cq-cq39" }, { "type": "ADVISORY", "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54080" }, { "type": "WEB", "url": "https://github.com/Exiv2/exiv2/commit/e737332427711f15bcdc4e903203d6b7493eaec0" }, { "type": "PACKAGE", "url": "https://github.com/Exiv2/exiv2" } ], "schema_version": "1.4.0", "severity": [ { "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N", "type": "CVSS_V4" } ], "summary": "Exiv2 Segmentation Faults in Exiv2::EpsImage::writeMetadata() via crafted EPS file" }
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.